ARK Stainless Inc is a manufacturer, supplier, and exporter of Forged Pipe Fittings in Carbon Steel, Alloy Steel, Stainless Steel, Duplex & Super Duplex Steel, Inconel, Monel, Hastelloy, Nickel Alloy, Titanium, and Copper Nickel grades for high pressure industrial piping systems.
The range includes Socket Weld Fittings, Threaded Forged Fittings, Pipe Nipples, Swage Nipples, Branch Outlet Fittings, Couplings, Unions, Elbows, Tees, Reducers, Caps, Crosses, Bushings, Plugs, Street Elbows, and Pipe Outlets in different pressure classes and end connections.
Forged fittings are supplied in 2000#, 3000#, 6000#, and 9000# pressure ratings with Socket Weld and NPT / BSPT threaded ends as per ASME B16.11, MSS SP-79, MSS SP-95, BS 3799, ASTM A182, ASTM A105, A105N, and A350 LF2 standards.
ARK Stainless Inc manufactures Stainless Steel Forged Fittings in ASTM A182 F304, F304L, F316, F316L, F321, F347, F904L and other grades. Carbon Steel Forged Fittings are available in ASTM A105, A350 LF2, A106 Gr. B, and A234 WPB. Alloy Steel Forged Fittings are supplied in F5, F9, F11, F22, and F91 grades for high temperature and high pressure service applications.
These forged pipe fittings are used in oil & gas pipelines, petrochemical plants, refineries, power generation units, chemical plants, fire fighting systems, steam lines, HVAC systems, offshore platforms, marine applications, pulp & paper mills, railways, and industrial process piping systems.
Socket Weld Forged Fittings are commonly used in high pressure lines where leak-free connections and strong pipe joints are required. Threaded Forged Fittings are used in smaller diameter piping systems where welding is not preferred during installation or maintenance.
The product range includes forged elbows, equal tees, reducing tees, half couplings, full couplings, reducing couplings, unions, hex nipples, swage nipples, branch outlets, welding outlets, bull plugs, square head plugs, hex head bushings, and long radius forged fittings in different wall thicknesses and configurations.
All forged fittings are manufactured from tested raw materials with dimensional inspection and quality checks during production. Material Test Certificates EN 10204 3.1, PMI testing, hydro testing, hardness testing, ultrasonic testing, radiography testing, and third-party inspection can be provided as per project requirements.
Forged Pipe Fittings are available with surface finishes including black finish, zinc coating, hot dip galvanizing, phosphated, sand blasted, electro zinc coated, aluminised, and self-colour finish depending on application and operating environment.
ARK Stainless Inc supplies forged fittings in seamless and forged construction for domestic and export projects with packaging in wooden boxes, pallets, and export cartons for safe transportation and handling.
| Material | Standard | Available Grades | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | ||
| Stainless Steel | ASTM A182 F | 304 | 304H | 309 | 310 | 316 | 316L | 317L | 321 | 347 | 904L |
| Alloy Steel | ASTM A182 F | F1 | F11 | F12 | F22 | F91 | F5 | F9 | |||
| Aluminum | ASTM B209 / B221 / B247 | 1100 | 2011 | 2014 | 2024 | 3003 | 5052 | 6061 | 6063 | 7075 | |
| Carbon Steel | ASTM A105 / A350 LF2 | WPB | WPBW | WPHY 42 | WPHY 46 | WPHY 52 | WPHY 60 | WPHY 65 | WPHY 70 | ||
| Nickel Alloy | ASTM B564 | Inconel 600 | Monel 400 | Alloy 20 | Inconel 825 | Inconel 601 | Inconel 625 | Nickel 200 | Hastelloy C276 | Nickel 201 | |
| Titanium | ASTM B348 / B381 / B367 | Grade 1 | Grade 2 | Grade 5 | Grade 7 | ||||||
| Monel | ASTM B564 / B865 | Monel 400 | Monel K500 | ||||||||
| Hastelloy | ASTM B619 / B622 | C-22 | C-276 | B-2 | Hastelloy X | ||||||
| Duplex & Super Duplex Stainless Steel | ASTM A182 / A351 | Duplex 2205 | Duplex 2304 | Super Duplex 2507 | |||||||
| Type | Connection | Size Range (NPS) | Pressure Rating (Class) | Standard | Application |
|---|---|---|---|---|---|
| Elbow (90°/45°) | Socket Weld | 1/8” - 4” | 2000 / 3000 / 6000 | ASME B16.11 | Direction change in pipe systems |
| Forged Tee | Socket Weld / Threaded | 1/8” - 4” | 2000 / 3000 / 6000 | ASME B16.11 | 3-way fluid distribution |
| Forged Cross | Socket Weld / Threaded | 1/8” - 4” | 2000 / 3000 / 6000 | ASME B16.11 | 4-way flow intersection |
| Coupling (Full/Half/Reducing) | Socket Weld / Threaded | 1/8” - 4” | 2000 / 3000 / 6000 | ASME B16.11 | Pipe joining or reduction |
| Forged Pipe Cap | Socket Weld / Threaded | 1/8” - 4” | 2000 / 3000 / 6000 | ASME B16.11 | End closure for pipe run |
| Forged Union | Threaded | 1/8” - 4” | 2000 / 3000 | ASME B16.11 / MSS-SP-83 | Easy disassembly and reconnection |
| Forged Bushing | Threaded | 1/8” - 4” | 2000 / 3000 | ASME B16.11 | Reducing pipe size |
| Forged Nipple | Threaded | 1/8” - 4” | 2000 / 3000 | ASME B16.11 / MSS-SP-95 | Pipe extensions and connections |
| Fitting Type | Size (Inch) | Dimensions (mm) | Wall Thickness | Standard | |
|---|---|---|---|---|---|
| Outer Diameter (OD) | Center-to-End / Length | ||||
| Elbow 90° | 1/2" | 21.3 | 33 | 3.75 | ASME B16.11 |
| 3/4" | 26.7 | 38 | 3.90 | ||
| 1" | 33.4 | 44 | 4.55 | ||
| Forged Tee | 1/2" | 21.3 | 33 | 3.75 | ASME B16.11 |
| 3/4" | 26.7 | 38 | 3.90 | ||
| 1" | 33.4 | 44 | 4.55 | ||
| Forged Cross | 1/2" | 21.3 | 33 | 3.75 | ASME B16.11 |
| 3/4" | 26.7 | 38 | 3.90 | ||
| 1" | 33.4 | 44 | 4.55 | ||
| Coupling | 1/2" | 21.3 | 32 | 3.75 | ASME B16.11 |
| 3/4" | 26.7 | 35 | 3.90 | ||
| 1" | 33.4 | 41 | 4.55 | ||
| Forged Pipe Cap | 1/2" | 21.3 | 25 | 3.75 | ASME B16.11 |
| 3/4" | 26.7 | 28 | 3.90 | ||
| 1" | 33.4 | 32 | 4.55 | ||
| Forged Union | 1/2" | 21.3 | 48 | 3.75 | MSS SP-83 |
| 3/4" | 26.7 | 53 | 3.90 | ||
| 1" | 33.4 | 60 | 4.55 | ||
| Forged Bushing | 1/2" x 1/4" | 21.3 x 13.7 | 22 | 3.75 | ASME B16.11 |
| 3/4" x 1/2" | 26.7 x 21.3 | 25 | 3.90 | ||
| 1" x 3/4" | 33.4 x 26.7 | 28 | 4.55 | ||
| Forged Nipple | 1/2" | 21.3 | 90 (length) | 3.75 | ASME B16.11 |
| 3/4" | 26.7 | 100 (length) | 3.90 | ||
| 1" | 33.4 | 110 (length) | 4.55 | ||
| Material | Grade | Pressure-Temperature Ratings (PSI) | Standard | ||||
|---|---|---|---|---|---|---|---|
| -20°F to 100°F | 200°F | 400°F | 600°F | 800°F | |||
| Stainless Steel | ASTM A403 WP304 | 150 | 125 | 110 | 95 | 80 | ASME B16.5 |
| ASTM A403 WP316 | 160 | 135 | 120 | 100 | 85 | ||
| ASTM A403 WP321 | 155 | 130 | 115 | 98 | 82 | ||
| ASTM A403 WP347 | 158 | 132 | 118 | 99 | 83 | ||
| Carbon Steel | ASTM A234 WPB | 140 | 120 | 100 | 85 | 70 | ASME B16.9 |
| ASTM A234 WPC | 145 | 123 | 103 | 87 | 72 | ||
| ASTM A420 WPL6 | 150 | 127 | 107 | 90 | 75 | ||
| ASTM A860 WPHY52 | 170 | 140 | 120 | 100 | 85 | ||
| Duplex Steel | ASTM A815 UNS S31803 | 180 | 150 | 130 | 110 | 95 | ASME B16.9 |
| ASTM A815 UNS S32205 | 190 | 160 | 140 | 115 | 100 | ||
| ASTM A815 UNS S32750 | 200 | 170 | 150 | 125 | 110 | ||
| Nickel Alloy | ASTM B366 UNS N06600 | 210 | 180 | 160 | 140 | 120 | ASME B16.9 |
| ASTM B366 UNS N08825 | 220 | 190 | 170 | 150 | 130 | ||
| ASTM B366 UNS N10276 | 230 | 200 | 180 | 160 | 140 | ||
| Material | Grade | Dimensional Tolerances (mm) | Wall Thickness Tolerances (%) | Standard | ||||
|---|---|---|---|---|---|---|---|---|
| OD (Outer Diameter) | ID (Inner Diameter) | Length | Min | Max | Average | |||
| Stainless Steel | ASTM A403 WP304 | ±0.5 | ±0.4 | ±1.0 | -12.5% | +12.5% | ±10% | ASME B16.9 |
| ASTM A403 WP316 | ±0.6 | ±0.5 | ±1.2 | -12.5% | +12.5% | ±10% | ||
| ASTM A403 WP321 | ±0.7 | ±0.6 | ±1.5 | -10% | +10% | ±8% | ||
| ASTM A403 WP347 | ±0.8 | ±0.7 | ±1.8 | -10% | +10% | ±8% | ||
| Carbon Steel | ASTM A234 WPB | ±0.5 | ±0.3 | ±1.0 | -12.5% | +12.5% | ±10% | ASME B16.9 |
| ASTM A234 WPC | ±0.6 | ±0.4 | ±1.2 | -12.5% | +12.5% | ±10% | ||
| ASTM A420 WPL6 | ±0.7 | ±0.5 | ±1.4 | -12.5% | +12.5% | ±10% | ||
| Duplex Steel | ASTM A815 UNS S31803 | ±0.6 | ±0.4 | ±1.2 | -10% | +10% | ±8% | ASME B16.9 |
| ASTM A815 UNS S32205 | ±0.7 | ±0.5 | ±1.5 | -10% | +10% | ±8% | ||
| ASTM A815 UNS S32750 | ±0.8 | ±0.6 | ±1.8 | -8% | +8% | ±7% | ||
| Nickel Alloy | ASTM B366 UNS N06600 | ±0.5 | ±0.3 | ±1.0 | -12.5% | +12.5% | ±10% | ASME B16.9 |
| ASTM B366 UNS N08825 | ±0.6 | ±0.4 | ±1.2 | -10% | +10% | ±8% | ||
| ASTM B366 UNS N10276 | ±0.7 | ±0.5 | ±1.4 | -8% | +8% | ±7% | ||
Forged pipe fittings are essential in high-pressure and high-temperature applications, offering superior strength, durability, and leak-proof connections. They are used in numerous critical industrial systems due to their compact structure and resistance to stress and corrosion.
Used in high-pressure pipelines and process lines for safe transportation of crude oil, gas, and fuels.
Ideal for systems handling aggressive chemicals, hydrocarbons, and steam under extreme conditions.
Used in boiler lines, superheaters, and turbine piping where high strength and heat resistance are essential.
Supports pipelines carrying corrosive chemicals and ensures reliable sealing in high-pressure applications.
Used in offshore and onshore marine systems, including ballast and bilge piping, due to corrosion resistance.
Integral in pressure-regulated systems for fluid transmission and control in machinery and automation.
Forged fittings ensure secure and compact piping connections in urban development and industrial projects.
Preferred for precision and reliability in mission-critical applications involving fuel and fluid systems.
The manufacturing process of forged fittings involves precision engineering, high-quality raw materials, and rigorous testing. This process ensures that the fittings deliver superior mechanical strength, pressure handling capability, and dimensional accuracy required for critical applications.
High-quality bars or billets of stainless steel, carbon steel, duplex, or special alloys are chosen based on the required chemical and mechanical properties.
The raw material is heated in a furnace to forging temperature and then forged under high pressure to shape into elbows, tees, unions, or other forged fitting forms.
Flash or excess material is trimmed, and rough machining is performed to bring the fittings close to their final dimensions.
Heat treatment such as annealing or normalizing is carried out to enhance strength, ductility, and corrosion resistance of the fittings.
CNC machines are used to finish the fittings to exact tolerances and surface finishes, ensuring proper thread cutting or socket depths.
Each forged fitting undergoes dimensional inspection, hydrostatic pressure testing, and non-destructive tests like ultrasonic or radiographic testing.
Fittings are cleaned, descaled, or coated with rust-preventive treatments such as pickling, passivation, or galvanization.
Final fittings are marked with size, material grade, and heat number, packed securely, and dispatched to ensure safe delivery.
Forged 45 & 90 Degree Elbows are widely used in high-pressure piping systems where flow direction needs to be changed without leakage or pressure loss. ARK Stainless Inc is a manufacturer, stockist, and supplier of Forged Pipe Fittings including 90° and 45° elbows in Carbon Steel, Stainless Steel, Alloy Steel, Duplex, Super Duplex, Nickel Alloy, Inconel, Monel, Hastelloy, and Copper Nickel grades.
These forged elbows are available in socket weld and threaded (NPT, BSP, BSPT) connections and are manufactured as per ASME B16.11 standards for high-pressure industrial applications.
Forged elbow fittings are used in compact piping layouts where space is limited and flow direction changes are required. These fittings are designed for leak-free performance under high pressure, vibration, and temperature variations.
90 degree forged elbows are used for sharp directional changes, while 45 degree forged elbows are used where gradual flow direction change is required in pipeline systems.
Forged 90° Elbows are available in size range 1/8” NB to 4” NB with pressure classes 2000#, 3000#, 6000#, and 9000#.
They are supplied in seamless forged construction with socket weld and threaded end connections suitable for industrial piping systems, instrumentation lines, and high-pressure service applications.
Forged elbows are manufactured in multiple grades based on application requirements.
Carbon Steel grades include ASTM A105, A350 LF2, A234 WPB, and WPHY series. Stainless Steel forged elbows are available in ASTM A182 F304, F316, F321, F347, and duplex grades like S31803, S32205, S32750, and S32760.
High nickel alloy forged elbows are supplied in Monel 400, Inconel 600, Inconel 625, Inconel 825, Hastelloy C276, and Nickel 200/201 for corrosive and high temperature environments.
Alloy steel forged elbows are available in WP5, WP9, WP11, WP22, and WP91 grades used in high temperature power and refinery piping systems.
Forged elbows are used in oil & gas pipelines, petrochemical plants, refineries, chemical processing units, power generation plants, steam lines, heat exchangers, instrumentation piping, and offshore platforms.
They are also used in fire fighting systems, hydraulic lines, compressed air systems, shipbuilding, and marine piping networks where high pressure and corrosion resistance are required.
| Nominal Pipe Size (NPS) | OD (mm) | Center-to-End (90° Elbow) | Center-to-End (45° Elbow) | Socket Depth (mm) | Pressure Class |
|---|---|---|---|---|---|
| 1/2" | 21.3 | 33 | 25 | 10 | 3000# |
| 3/4" | 26.7 | 38 | 28 | 13 | 3000# |
| 1" | 33.4 | 44 | 32 | 13 | 3000# |
| 1 1/2" | 48.3 | 57 | 38 | 16 | 3000# |
| 2" | 60.3 | 64 | 44 | 19 | 3000# |
| 3" | 88.9 | 86 | 70 | 25 | 3000# |
Forged Tee fittings (Equal Tee and Reducing Tee) are high-pressure pipe fittings used to connect pipelines and split or combine flow in industrial piping systems. ARK Stainless Inc is a manufacturer, supplier, and exporter of Forged Socket Weld and Threaded Tees in Carbon Steel, Stainless Steel, Alloy Steel, Duplex, Super Duplex, Nickel Alloy, Monel, Inconel, Hastelloy, Copper Nickel, and other special grades.
These forged tees are used in piping networks where strong mechanical strength, compact design, and leak-free performance are required under high pressure and temperature conditions.
Equal tees are used where all three outlets have the same diameter and flow is distributed evenly across the pipeline. Reducing tees are used when branch connection size differs from the main line, allowing controlled flow distribution in piping systems.
These fittings are commonly used in oil & gas pipelines, petrochemical plants, refineries, chemical processing units, power plants, steam lines, hydraulic systems, instrumentation lines, and offshore piping networks.
Forged tees are available in size range 1/4” NB to 4” NB with pressure classes 2000#, 3000#, 6000#, and 9000#.
Manufacturing standards include ASME B16.11, MSS SP-79, MSS SP-83, MSS SP-95, MSS SP-97, and BS 3799 for high-pressure piping applications.
Available end connections include socket weld fittings and threaded fittings in NPT, BSP, and BSPT threads.
Carbon steel forged tees are supplied in ASTM A105, A350 LF2, A106 Gr. B, and API 5L grades used in structural and industrial piping systems.
Stainless steel forged tees are available in ASTM A182 F304, F304L, F316, F316L, F321, F347, 310, and 904L grades for corrosion-resistant applications.
Alloy steel forged tees include WP1, WP5, WP9, WP11, WP22, and WP91 grades used in high temperature and pressure service conditions.
Duplex and super duplex grades include S31803, S32205, S32750, and S32760 for seawater and chloride-rich environments.
Nickel alloy forged tees are supplied in Monel 400, Inconel 600, Inconel 625, Inconel 825, Hastelloy C276, Nickel 200, Nickel 201, and Alloy 20 for highly corrosive and critical applications.
Copper nickel forged tees (Cu-Ni 90/10 and 70/30) are used in marine and seawater piping systems.
Equal tees are pipe fittings where all three openings are the same size, used for balanced flow distribution in pipeline systems. Reducing tees have a smaller branch outlet compared to the main line and are used where flow direction or pipe size needs to change.
Both types are selected based on piping design, flow requirement, and pressure conditions in industrial systems.
| Nominal Pipe Size (NPS) | OD (mm) | Center-to-End (Run) (A) | Center-to-End (Branch) (B) | Socket Depth (mm) | Pressure Class |
|---|---|---|---|---|---|
| 1/2" | 21.3 | 33 | 25 | 10 | 3000# |
| 3/4" | 26.7 | 38 | 28 | 13 | 3000# |
| 1" | 33.4 | 44 | 32 | 13 | 3000# |
| 1 1/2" | 48.3 | 57 | 38 | 16 | 3000# |
| 2" | 60.3 | 64 | 44 | 19 | 3000# |
| 3" | 88.9 | 86 | 70 | 25 | 3000# |
Forged Cross fittings (Equal Cross and Reducing Cross) are high-pressure pipe fittings used to split flow into four directions in industrial piping systems. ARK Stainless Inc is a manufacturer, supplier, and exporter of ASME B16.11 Forged Cross fittings in Socket Weld and Threaded types for carbon steel, stainless steel, alloy steel, duplex, super duplex, nickel alloys, and other special materials.
These forged cross fittings are designed for compact piping layouts where multiple branch connections are required in a single joint with high strength and leak-free performance under pressure.
Forged Equal Cross fittings are used when all four outlets are of the same size and flow distribution is uniform. Forged Reducing Cross fittings are used when branch sizes differ and controlled flow distribution is required in pipeline systems.
These fittings are widely used in oil & gas pipelines, petrochemical plants, refineries, chemical processing units, power plants, steam distribution systems, hydraulic systems, water treatment plants, desalination units, and instrumentation piping networks.
Forged cross fittings are used in chemical processing plants, oil refineries, offshore platforms, gas pipelines, power generation plants, paper and pulp industries, food processing units, water treatment systems, desalination plants, automotive systems, plumbing networks, and industrial piping layouts.
They are preferred in systems where multiple pipeline connections are required at a single junction with high pressure handling capability.
Forged Cross fittings are available in size range 1/4” NB to 4” NB with pressure ratings of 2000#, 3000#, 6000#, and 9000#.
Manufacturing standards include ASME B16.11, MSS SP-79, MSS SP-83, MSS SP-95, MSS SP-97, and BS 3799 for high-pressure piping applications.
Available end connections include socket weld fittings and threaded fittings in NPT, BSP, and BSPT threads depending on system requirements.
Carbon steel forged cross fittings are available in ASTM A105, A350 LF2, A106 Gr. B, and API 5L grades for general industrial piping systems.
Stainless steel forged crosses are supplied in ASTM A182 F304, F304L, F316, F316L, F321, F347, and 904L grades for corrosion-resistant applications.
Alloy steel forged crosses include WP1, WP5, WP9, WP11, WP22, and WP91 grades used in high temperature service conditions.
Duplex and super duplex grades include S31803, S32205, S32750, and S32760 for seawater and chloride-rich environments.
Nickel alloy forged crosses are available in Monel 400, Inconel 600, Inconel 625, Inconel 825, Hastelloy C276, Nickel 200, Nickel 201, and Alloy 20 for highly corrosive and critical service applications.
Copper nickel forged crosses are used in marine and seawater piping systems.
| Nominal Pipe Size (NPS) | OD (mm) | Center-to-End (Run) (A) | Center-to-End (Branch) (B) | Socket Depth (mm) | Pressure Class |
|---|---|---|---|---|---|
| 1/2" | 21.3 | 33 | 25 | 10 | 3000# |
| 3/4" | 26.7 | 38 | 28 | 13 | 3000# |
| 1" | 33.4 | 44 | 32 | 13 | 3000# |
| 1 1/2" | 48.3 | 57 | 38 | 16 | 3000# |
| 2" | 60.3 | 64 | 44 | 19 | 3000# |
Forged Union fittings are used in piping systems where pipes need to be connected and disconnected without cutting or disturbing the line. These are widely used forged pipe fittings designed for quick maintenance and leak-proof performance in high pressure systems. A forged union consists of three parts – male end, female end, and a nut – which compress tightly to form a secure seal.
ARK Stainless Inc is a manufacturer, supplier and exporter of forged socket weld union and forged threaded union fittings in India, supplying to oil & gas, petrochemical, power plants, chemical plants, instrumentation lines and process industries.
Forged unions are available in socket weld and threaded (NPT, BSP, BSPT) connections and are manufactured as per ASME B16.11 standards in pressure classes 2000#, 3000#, 6000# and 9000#. These fittings are machined with tight tolerances to ensure leak-free performance even under high pressure and vibration conditions.
Threaded union fittings and socket weld unions are commonly used in small bore piping systems where frequent dismantling is required. These fittings allow easy maintenance without welding or pipe cutting, which reduces downtime in industrial operations.
Forged union fittings are supplied in stainless steel, carbon steel, alloy steel, duplex steel, super duplex steel, nickel alloys, copper nickel and special grades depending on application requirements. Common stainless steel grades include ASTM A182 F304, F316, F316L, F321, F347 and 904L. Carbon steel unions are manufactured in ASTM A105 and A350 LF2 grades, while alloy steel unions are available in F11, F22 and F91 grades. Nickel alloy unions such as Monel, Inconel, Hastelloy and Alloy 20 are used in highly corrosive environments.
These forged pipe unions are widely used in oil refineries, gas distribution lines, chemical processing units, fertilizer plants, offshore platforms, power generation systems and water treatment plants. Their main advantage is reliable sealing under pressure combined with easy installation and removal.
All forged unions are manufactured under strict quality control with raw material traceability and testing. Products are supplied with material test certificates (MTC), third party inspection reports, hydro testing, PMI testing and ultrasonic testing as per customer requirement.
ARK Stainless Inc supplies forged threaded union fittings and socket weld unions in custom sizes, different pressure ratings and material grades as per project requirements. Fittings are also available with surface finishes such as black coating, galvanized, pickled and polished finish depending on application and environment conditions.
Forged unions remain a critical component in industrial piping systems where reliability, safety and maintenance efficiency are required in high pressure flow lines.
| Nominal Pipe Size (NPS) | End Type | Outside Diameter (OD) | Length (Face to Face) | Pressure Rating |
|---|---|---|---|---|
| 1/2" | Socket Weld | 21.3 mm | 48 mm | 3000# |
| 3/4" | Threaded | 26.7 mm | 53 mm | 3000# |
| 1" | Socket Weld | 33.4 mm | 60 mm | 3000# |
| 1 1/2" | Threaded | 48.3 mm | 70 mm | 3000# |
| 2" | Socket Weld | 60.3 mm | 82 mm | 3000# |
Swage Nipple is a forged pipe fitting used to connect pipes of different diameters in a straight line. It is mainly used as a reducer in high pressure piping systems where smooth flow transition is required between two different pipe sizes. Swage nipples are available in two types – concentric swage nipple (center aligned flow) and eccentric swage nipple (offset centerline), depending on piping layout requirements.
ARK Stainless Inc is a manufacturer, supplier and exporter of forged swage nipples in India, supplying to oil & gas, petrochemical, power generation, chemical and industrial piping projects.
Swage nipples are manufactured in accordance with ASME B16.11 and MSS SP-95 standards and are available in threaded, socket weld, plain end and beveled end configurations. These fittings are used in high pressure and high temperature piping systems where reliable flow transition between different pipe sizes is required.
Concentric swage nipples are used where pipe centerlines remain aligned, ensuring smooth and balanced flow. Eccentric swage nipples are used where drainage, cavitation control or layout adjustment is required in piping systems.
Threaded swage nipple and socket weld swage nipple connections are widely used in small bore piping systems, instrumentation lines and process piping where leak-proof performance and easy installation are required.
Swage nipples are manufactured from carbon steel, stainless steel, alloy steel, duplex steel, super duplex steel, nickel alloys and copper nickel materials depending on application. Common stainless steel grades include ASTM A182 F304, F316, F316L, F321 and F347. Carbon steel swage nipples are produced in ASTM A105 and A350 LF2 grades. Alloy steel grades include F11, F22 and F91, while nickel alloys like Monel, Inconel, Hastelloy and Alloy 20 are used in highly corrosive environments.
These forged fittings are widely used in oil and gas pipelines, refineries, chemical processing plants, offshore platforms, power plants, water treatment systems, marine applications and industrial fluid handling systems. Their main function is to reduce or increase pipe size while maintaining flow efficiency and system integrity.
Swage nipples are manufactured from seamless pipe or bar material and are designed to handle high working pressure similar to straight piping systems. Each product is supplied with proper material traceability and testing as per project requirements.
Quality testing includes material test certificates (MTC), PMI testing, hydro testing, ultrasonic testing and third party inspection. These checks ensure dimensional accuracy, mechanical strength and leak-free performance under demanding operating conditions.
ARK Stainless Inc supplies concentric and eccentric swage nipples in standard and custom sizes, with different end connections and pressure ratings. Surface finishes such as pickled, polished, black coated and galvanized are available based on service conditions.
Swage nipples are used wherever pipe size reduction or expansion is required in a straight pipeline without complex fittings. They are commonly used in process industries where compact piping layouts and high pressure performance are critical.
| Size (Large End × Small End) | Type | Length (mm) | End Connection | Pressure Rating |
|---|---|---|---|---|
| 2" × 1" | Concentric | 120 mm | BE × NPT | 3000# |
| 3" × 1 1/2" | Eccentric | 150 mm | BE × NPT | 3000# |
| 4" × 2" | Concentric | 180 mm | PE × PE | 3000# |
| 6" × 3" | Eccentric | 200 mm | PE × NPT | 6000# |
| 8" × 4" | Concentric | 250 mm | BE × BE | 6000# |
A forged adaptor is a pipe fitting used to connect two pipes of different sizes, end types, or thread standards. These fittings are commonly used where a transition is required between threaded and socket weld connections or between male and female threaded ends. Forged adaptors are widely used in piping systems that require easy assembly, disassembly, and maintenance without disturbing the entire pipeline.
Threaded and socket weld adaptors are widely used in oil & gas, petrochemical, instrumentation, power plants and industrial piping networks where compact, leak-free and reliable connections are required.
Socket weld adaptors are used in small bore piping systems, typically NPS 2 and below, where high pressure and strong leak-proof joints are required. The pipe is inserted into a recessed socket and welded using a fillet weld, making the connection strong and compact. These fittings are preferred in instrumentation lines and process piping where vibration resistance and sealing integrity are important.
Threaded adaptors are used where easy installation and removal is required. They are available in NPT, BSP and BSPT thread standards and are commonly used in general piping, maintenance systems and modular piping layouts.
Forged socket weld fittings and threaded adaptors are designed as per ASME B16.11, MSS SP-79, MSS SP-95 and BS 3799 standards, covering pressure ratings, dimensions, tolerances and material requirements for high-pressure applications.
Forged adaptors are manufactured in a wide range of materials based on service conditions such as pressure, temperature and corrosion resistance.
Stainless steel adaptors are available in ASTM A182 grades such as F304, F304L, F316, F316L, F316Ti, F321, F347, 310, 310S and 904L. These stainless steel forged adaptors are widely used in chemical, food processing and general industrial piping systems.
Carbon steel adaptors are manufactured in ASTM A105, A350 LF2 and A106 Gr.B grades and are commonly used in oil pipelines, refineries and utility piping systems.
Alloy steel adaptors are supplied in grades such as F5, F9, F11, F22 and F91, suitable for high temperature and high pressure service conditions like boilers and thermal plants.
Duplex and super duplex steel adaptors such as F51, F53, F55, S31803, S32205, S32750 and S32760 are used in offshore, marine and highly corrosive environments.
Nickel alloy adaptors include Inconel 600, 625, 601, 825, Incoloy 800 series, Hastelloy grades C22, C276, Alloy 20 and Monel 400 / K500. These are used in extreme corrosion and high temperature applications in chemical and marine industries.
Titanium and copper nickel adaptors are also used in seawater, desalination and aggressive chemical environments where corrosion resistance is critical.
Forged pipe adaptors are used in oil & gas pipelines, petrochemical plants, offshore platforms, refineries, power generation units, chemical processing industries, water treatment systems, marine engineering and instrumentation piping.
These fittings help in connecting different pipe sizes, converting thread types and providing flexible piping layouts with fewer leak points. They are widely used in systems where vibration, pressure fluctuation and thermal expansion are common.
Forged adaptors are designed for high-pressure performance and long service life. Socket weld adaptors provide strong mechanical strength and leak-tight joints, while threaded adaptors allow easy installation and maintenance.
These fittings are manufactured from seamless bar or pipe material and are tested for dimensional accuracy, pressure handling and material quality. Each adaptor is supplied with proper material traceability and inspection certificates as per customer and project requirements.
ARK Stainless Inc supplies forged socket weld adaptors and threaded adaptors in standard and custom configurations with different pressure ratings, end connections and material grades as per industrial requirements.
| Adaptor Type | Size (Inch) | Length (mm) | End Connection | Pressure Rating |
|---|---|---|---|---|
| Male × Female | 1/2" | 45 mm | NPT × NPT | 3000# |
| Male × Socket Weld | 3/4" | 50 mm | NPT × SW | 3000# |
| Threaded × Threaded | 1" | 58 mm | BSPT × BSPT | 6000# |
| Female × Socket Weld | 1 1/2" | 65 mm | NPT × SW | 3000# |
| Male × Male | 2" | 72 mm | NPT × NPT | 6000# |
Forged full coupling and half coupling are widely used forged pipe fittings designed for connecting pipes in high pressure piping systems. These fittings are manufactured in threaded and socket weld types and are commonly used in oil & gas, petrochemical, chemical processing, power plants, water treatment and industrial piping applications.
A forged full coupling is used to join two pipes together in a straight line. It contains female threads or socket ends on both sides, allowing secure pipe connections with leak-proof sealing. Full couplings are mainly used where complete pipe connection and strong alignment are required in the piping system.
A forged half coupling is designed to connect only one side of a pipe or branch outlet. Half couplings are commonly welded onto vessels, tanks or larger pipes to create an outlet connection in compact spaces where a full coupling cannot be installed.
Threaded full couplings are manufactured as per ANSI / ASME B16.11 standards and are available in NPT, BSP and BSPT thread forms. These forged threaded couplings are suitable for Class 2000, 3000 and 6000 pressure ratings.
Socket weld full couplings are available in Class 3000, 6000 and 9000 pressure ratings and are widely used in small bore high-pressure piping systems where welding strength and leak integrity are important.
Forged couplings are manufactured according to ASME B16.11, MSS SP-79, MSS SP-95 and BS 3799 standards covering dimensions, tolerances, pressure-temperature ratings and material specifications.
A full coupling connects two pipe ends completely and is generally used where straight pipeline extension is required. It provides a strong and permanent connection in piping systems carrying liquids, gases and steam under pressure.
A half coupling connects only one side and leaves the other side open for branch connections. It is commonly used in fabrication work, tanks, pressure vessels and compact piping layouts.
Full couplings are preferred where full pipe engagement and stronger pipe joining are needed, while half couplings are suitable for branch outlets and limited space installations.
Stainless steel forged couplings are available in ASTM A182 grades such as F304, F304L, F316, F316L, F321, F347, F310, F904L and other corrosion resistant stainless steel grades. These stainless steel threaded couplings and socket weld couplings are widely used in food processing, pharmaceuticals, chemical plants and marine applications.
Carbon steel forged couplings are manufactured in ASTM A105, A350 LF2, A106 Gr.B and API 5L grades. These carbon steel full couplings are widely used in refineries, pipelines, power plants and industrial utility systems.
Alloy steel couplings are available in ASTM A182 F5, F9, F11, F22 and F91 grades for high temperature and high-pressure applications. These alloy steel socket weld couplings are commonly used in thermal power plants, boilers and steam piping systems.
Duplex steel and super duplex steel couplings such as F51, F53, F55, S31803, S32205, S32750 and S32760 are used in offshore, marine and seawater handling applications where excellent corrosion resistance and mechanical strength are required.
Nickel alloy forged couplings are manufactured in Monel 400, Inconel 600, Inconel 625, Hastelloy C276, Alloy 20 and Nickel 200 / 201 grades. These high nickel alloy couplings are suitable for aggressive chemical environments and high temperature process systems.
Forged threaded couplings and socket weld couplings are used in oil refineries, petrochemical plants, offshore platforms, gas processing units, chemical industries, power generation plants, water treatment systems and instrumentation piping.
These fittings are preferred for compact piping systems because they provide strong sealing, pressure resistance and easy installation. Threaded and socket weld couplings are also widely used in fire fighting lines, hydraulic systems and steam distribution pipelines.
Forged couplings are manufactured from high-quality forged material for improved strength and durability. They are precision machined for accurate threads and proper socket dimensions to ensure leak-proof connections.
These fittings are available in different materials, pressure ratings and custom configurations as per project requirements. Forged couplings are supplied with material test certificates, inspection reports and complete traceability documentation for industrial and export applications.
| Coupling Type | Size (Inch) | Length (mm) | End Connection | Pressure Rating |
|---|---|---|---|---|
| Full Coupling | 1/2" | 32 mm | Socket Weld | 3000# |
| Half Coupling | 3/4" | 26 mm | Threaded (NPT) | 3000# |
| Full Coupling | 1" | 41 mm | Socket Weld | 6000# |
| Half Coupling | 1 1/2" | 38 mm | Threaded (BSPT) | 6000# |
| Full Coupling | 2" | 51 mm | Socket Weld | 3000# |
Forged Pipe Cap is a high pressure forged fitting used to close the end of a pipeline securely. These fittings are commonly installed in threaded and socket weld piping systems where leak-proof sealing and pressure handling are important. Forged caps are widely used in oil & gas plants, petrochemical units, refineries, power projects, chemical processing lines, water treatment plants, and industrial piping systems.
At ARK Stainless Inc., we supply forged threaded pipe caps and socket weld pipe caps in different pressure ratings, sizes, and material grades. These fittings are manufactured as per ASME B16.11 standards and are suitable for high temperature and corrosive service conditions. Our forged caps are used for temporary pipeline closure, permanent sealing, maintenance shutdown points, and pressure testing applications.
We offer Stainless Steel Forged Pipe Caps, Carbon Steel Socket Weld Caps, Alloy Steel Threaded Pipe Caps, Duplex Steel Forged Caps, and Nickel Alloy Pipe Caps for industrial and process piping applications.
We manufacture Stainless Steel Forged Pipe Caps in grades such as ASTM A182 F304, F304L, F316, F316L, F321, F347, and F904L. Stainless steel forged caps offer good corrosion resistance and are widely used in food processing, marine, pharmaceutical, and chemical industries.
ASTM A182 F304 / F304L, ASTM A182 F316 / F316L, ASTM A182 F321, ASTM A182 F347, ASTM A182 F904L
Carbon Steel Forged Caps are used in high pressure industrial piping systems where strength and durability are required. These fittings are commonly used in refineries, oil pipelines, and power plants.
ASTM A105, ASTM A350 LF2, ASTM A106 Gr. B, ASTM A53 Gr. B
Alloy Steel Forged Pipe Caps are suitable for elevated temperature applications and aggressive process conditions. These fittings are widely used in thermal power plants and petrochemical industries.
ASTM A182 F1, ASTM A182 F5, ASTM A182 F9, ASTM A182 F11, ASTM A182 F22, ASTM A182 F91
Duplex and Super Duplex Pipe Caps provide high mechanical strength and excellent corrosion resistance in chloride and seawater environments.
UNS S31803, UNS S32205, UNS S32750, UNS S32760
We also supply forged pipe caps in exotic nickel alloys for highly corrosive and critical applications.
Inconel 600, Inconel 625, Inconel 825, Monel 400, Hastelloy C276, Alloy 20, Nickel 200 / 201
Forged pipe caps are used in:
ARK Stainless Inc. is a trusted exporter of ASME B16.11 Forged Pipe Caps from India. We supply forged threaded caps and socket weld caps with complete material traceability, test certificates, and custom requirements as per industrial applications. Our fittings are available in standard and heavy wall thickness for demanding pressure applications.
| Size (Inch) | Outer Diameter (OD) | Height (mm) | End Connection | Pressure Rating |
|---|---|---|---|---|
| 1/2" | 21.3 mm | 25 mm | Socket Weld | 3000# |
| 3/4" | 26.7 mm | 28 mm | Threaded (NPT) | 3000# |
| 1" | 33.4 mm | 32 mm | Socket Weld | 6000# |
| 1 1/2" | 48.3 mm | 38 mm | Threaded | 6000# |
| 2" | 60.3 mm | 44 mm | Socket Weld | 3000# |
