Alloy Steel Buttweld Elbows, Tees, Reducers, Caps, Stub Ends, and Pipe Bends are available in seamless, welded, fabricated, and ERW construction for industrial and high-pressure piping systems.
ARK Stainless Inc is a manufacturer, supplier, and exporter of Alloy Steel Buttweld Fittings manufactured according to ASME B16.9, ASME B16.28, and MSS SP-43 standards in multiple schedules, wall thicknesses, and custom project dimensions.
These Alloy Steel Pipe Fittings are widely used in refinery piping, boiler systems, power plants, petrochemical industries, offshore piping, pressure vessels, and thermal processing units operating under elevated temperature and high-pressure service conditions.
The fittings are supplied for applications requiring higher tensile strength, wear resistance, oxidation resistance, and long service life in industrial process piping systems.
Black painting, anti-rust oil coating, sand blasting, and custom surface finishes are available as per industrial operating conditions and project specifications.
| GRADE | SCHEDULE | NOM. PIPE SIZE |
|---|---|---|
| ASTM/ASME A234 WPB / A234 – MSS-SP-75 A/SA234 WP1, WP5, WP9, WP11, WP22, WP91 | SCH 10S | 1/2" – 24" |
| SCH 40S | 1/2" – 12" |
| GRADE | SCHEDULE | NOM. PIPE SIZE |
|---|---|---|
| ASTM/ASME A234 WPB / A234 – MSS-SP-75 A/SA234 WP1, WP5, WP9, WP11, WP22, WP91 | SCH 10S | 1/2" – 12" |
| SCH 40S | 1/2" – 12" | |
| SCH 80S | 1/2" – 12" |
ARK Stainless Inc is a manufacturer, supplier, and exporter of Alloy Steel Buttweld Fittings widely used for boiler systems, heat exchangers, condensers, offshore oil drilling applications, petrochemical plants, power generation units, chemical processing industries, pharmaceutical equipment, gas processing plants, and industrial process piping systems operating under high pressure and elevated temperature conditions.
The product range includes Alloy Steel Buttweld Elbows, Tees, Reducers, Caps, Stub Ends, and Pipe Bends manufactured for steam lines, fluid transfer systems, structural piping, and heavy engineering applications requiring higher tensile strength and long service life.
These Alloy Steel Pipe Fittings perform well in chloride environments and industrial service conditions involving oxidation, stress corrosion cracking, pitting corrosion, crevice corrosion, and general corrosion exposure.
Applications also include seawater equipment, pumps, shafts, food processing plants, pulp and paper industries, rail components, road transportation components, military applications, and industrial transportation systems.
All fittings undergo hardness testing, hydrostatic testing, ultrasonic testing, radiography testing, flattening tests, flaring tests, macro tests, micro tests, and mechanical testing before dispatch. Material test certificates and third-party inspection support are supplied as per project requirements.
ARK Stainless Inc. is a manufacturer, supplier and exporter of Alloy Steel WP5 Buttweld Pipe Fittings in India, supplying fittings for refinery, petrochemical, power generation and high-temperature process piping requirements. We cater to domestic as well as overseas enquiries for standard quantities, bulk requirements and project orders.
Alloy Steel WP5, commonly used for Chrome Moly piping applications, offers a combination of strength and performance at elevated temperatures. ASTM A234 WP5 Buttweld Fittings are used in piping systems where the fitting material needs to match the specified alloy steel pipe and service conditions.
Our range includes WP5 45° and 90° elbows, long and short radius elbows, equal and reducing tees, concentric and eccentric reducers, crosses, pipe bends, stub ends and end caps. Fittings can be supplied in different sizes, schedules and wall thicknesses according to the applicable dimensional standard and project specification.
As an Alloy Steel WP5 Buttweld Fittings manufacturer, supplier and exporter, ARK Stainless Inc. can handle standard as well as project-specific requirements. Buyers can send the required fitting type, size, schedule or wall thickness, quantity and delivery destination for pricing and quotation.
Alloy Steel WP5 Buttweld Pipe Fittings are checked for material quality, dimensions and mechanical properties before dispatch. Depending on the order requirement, tests can include PMI, chemical analysis, mechanical testing, hardness testing, dimensional checks and micro/macro examination.
Third-party inspection can also be arranged for ASTM A234 WP5 Pipe Fittings when required by the customer or project. Test reports and inspection documents can be provided as specified with the order.
ASTM A234 WP5 Buttweld Fittings are packed according to the size and quantity of the order. Wooden boxes, crates or pallets are used where required to protect the fittings and weld ends during handling and transportation.
For export orders, packing can be done according to the shipping method and buyer's requirement. Chrome Moly WP5 elbows, tees, reducers, pipe bends and other buttweld fittings can be supplied for single requirements as well as bulk and project orders.
| Grade | C | Mn | Si | S | P | Cr | Mo |
| Alloy Steel WP5 | ≤0.15 | ≤0.6 | ≤0.5 | ≤0.04 | ≤0.03 | 4-6 | 0.44-0.65 |
| Grade | Tensile Strength (Mpa) | Yield Strength (Mpa) | Elongation % |
| A234 WP5 | 415 - 585 | ≥205 | ≥20 |
Alloy Steel WP9 Buttweld Pipe Fittings are used in piping systems where carbon steel may not provide the required performance at elevated operating temperatures. WP9 is a chrome-moly alloy steel grade used for fittings in power, refinery, petrochemical and other high-temperature process piping applications.
ARK Stainless Inc. is an Alloy Steel WP9 Buttweld Fittings manufacturer, supplier and exporter in India, supplying fittings for new projects, plant maintenance and replacement requirements. Our range includes WP9 45° and 90° elbows, long radius elbows, equal and reducing tees, concentric and eccentric reducers, crosses, pipe bends, stub ends and end caps.
ASTM A234 WP9 Pipe Fittings can be supplied in different sizes, schedules and wall thicknesses to match the required piping specification. Requirements for Chrome Moly WP9 / CrMo WP9 fittings can also be handled against project drawings, material specifications and required dimensions.
We cater to domestic as well as overseas enquiries for single requirements, bulk quantities and project orders. Buyers looking for ASTM A234 WP9 Buttweld Fittings can send the fitting type, size, schedule, quantity and delivery destination for quotation.
Alloy Steel WP9 Buttweld Pipe Fittings are checked for material quality, mechanical properties and dimensions before dispatch. Depending on the order, testing can include PMI, tensile testing, mechanical testing, hardness testing, dimensional inspection and micro/macro examination. Additional testing or NDT can be carried out when specified by the buyer or project.
Third-party inspection can also be arranged for ASTM A234 WP9 Pipe Fittings where required. After inspection, the fittings are packed in wooden boxes, cases, crates or pallets depending on their size, quantity and shipping method. Suitable protection is provided for weld ends and identification markings during domestic or export transportation.
| Grade | C | Mn | Si | S | P | Cr | Mo |
| Alloy Steel WP9 | ≤0.15 | ≤0.6 | 1.00 | ≤0.03 | ≤0.03 | 8-10 | 0.90-1.10 |
| Grade | Tensile Strength (Mpa) | Yield Strength (Mpa) | Elongation % |
| A234 WP9 | 380 min | 585 min | =30 |
For requirements involving ASTM A234 WP11 fittings, ARK Stainless Inc. offers elbows, tees, reducers, crosses, bends, end caps and stub ends in commonly required sizes and schedules. We supply Alloy Steel WP11 Buttweld Fittings to customers in India and handle export enquiries for refinery, power, petrochemical and process piping projects.
WP11 is one of the commonly specified chrome moly grades for elevated-temperature piping. When a buyer sends us a WP11 requirement, the important details are normally the fitting type, size, schedule or wall thickness, quantity and applicable dimensional standard. We can quote against these details as well as project specifications or drawings.
The range covers 45° elbows, 90° LR and SR elbows, equal and reducing tees, concentric and eccentric reducers, crosses and pipe bends. Requirements for ASTM A234 WP11 / ASME SA234 WP11 fittings can be considered in standard as well as heavier wall thicknesses depending on the required size and configuration.
ARK Stainless Inc. works with domestic and overseas buyers looking for Chrome Moly WP11 Pipe Fittings for new projects, shutdown requirements, maintenance and replacement jobs. Material test certificates, inspection requirements and export documentation can be included according to the order requirement.
Material verification is an important part of supplying ASTM A234 WP11 Pipe Fittings for refinery, power and process piping jobs. Depending on the purchase specification, WP11 fittings can undergo PMI, hardness checks, chemical and mechanical testing, dimensional inspection and micro/macro examination. Project orders can also be offered with additional NDT or third-party inspection when called for by the customer.
Buyers sourcing Chrome Moly WP11 Buttweld Fittings often require material records along with the consignment, particularly for project and replacement orders. ARK Stainless Inc. can supply relevant MTCs, heat treatment records, material traceability details, inspection reports and QAP documents as required with the order.
For overseas shipments, commercial and export documents such as the packing list, commercial invoice and Certificate of Origin can be provided as applicable.
Requirements for WP11 elbows, reducers, tees, crosses, pipe bends and other buttweld fittings can be handled in different sizes and wall thicknesses. Packing is selected according to the fitting dimensions and shipment quantity, with protection provided for bevelled ends and identification markings where required.
ARK Stainless Inc. handles enquiries for Alloy Steel WP11 Buttweld Fittings in India and for export markets. Customers can also specify special marking, inspection, documentation or packing requirements with their enquiry.
| Grade | C | Mn | Si | S | P | Cr | Mo |
| Alloy Steel WP11 | 0.05-0.2 | 0.3-0.8 | 0.5-1 | =0.030 | =0.030 | 1-1.5 | 0.44-0.65 |
| Grade | Tensile Strength (Mpa) | Yield Strength (Mpa) | Elongation % |
| A234 WP11 | 415 - 585 | =205 | =20 |
For high-temperature piping systems, Alloy Steel WP22 Buttweld Pipe Fittings are commonly used in power plants, refineries, petrochemical units and process industries. The grade is suited to services where fittings are exposed to elevated temperatures and pressure over extended operating periods.
ARK Stainless Inc. supplies ASTM A234 WP22 Pipe Fittings in different sizes, schedules and wall thicknesses for new projects, plant maintenance and replacement requirements. The available range includes 45° and 90° elbows, long and short radius elbows, tees, concentric and eccentric reducers, crosses, pipe bends, stub ends and end caps.
Also referred to as Chrome Moly WP22 or CrMo WP22 fittings, these products offer the strength and elevated-temperature performance required for demanding alloy steel piping systems. Fittings can be supplied according to applicable dimensional standards, project specifications and required piping dimensions.
As a manufacturer, supplier and exporter of Alloy Steel WP22 Buttweld Fittings in India, ARK Stainless Inc. handles domestic as well as overseas requirements. Buyers can send their WP22 fitting type, size, schedule, quantity and delivery destination for quotation.
ARK Stainless Inc. manufactures, supplies and exports Alloy Steel WP22 Buttweld Pipe Fittings in different sizes, schedules and configurations. Our supply range covers WP22 elbows, tees, concentric and eccentric reducers, crosses, pipe bends, stub ends and end caps for refinery, power, petrochemical and process piping requirements.
ASTM A234 WP22 Pipe Fittings can be manufactured against standard dimensions as well as project-specific requirements. Depending on the purchase specification, PMI, chemical and mechanical testing, dimensional inspection and applicable NDT can be carried out. Third-party inspection can also be arranged when required by the customer.
After the required inspection, Chrome Moly WP22 Buttweld Fittings are prepared for domestic or export dispatch. Wooden cases, crates and pallets are selected according to the fitting size, weight and quantity, with suitable protection for weld ends and material markings.
As an Alloy Steel WP22 Buttweld Fittings exporter from India, ARK Stainless Inc. can supply bulk and project quantities to overseas customers with the required packing, marking and documentation.
| Grade | C | Mn | Si | S | P | Cr | Mo |
| Alloy Steel WP11 | 0.05-0.15 | 0.3-0.6 | ≤0.5 | ≤0.04 | ≤0.04 | 2-2.5 | 0.87-1.13 |
| Grade | Tensile Strength (Mpa) | Yield Strength (Mpa) | Elongation % |
| A234 WP22 | 415 - 585 | ≥205 | ≥20 |
High-temperature piping in power and process plants requires fittings that can work under demanding pressure and temperature conditions. Alloy Steel WP91 Buttweld Pipe Fittings are used for such applications, particularly where the piping specification calls for matching high-strength chrome moly components.
ARK Stainless Inc. manufactures, supplies and exports ASTM A234 WP91 Pipe Fittings in different sizes and wall thicknesses. The product range covers WP91 45° and 90° elbows, long radius elbows, equal and reducing tees, concentric and eccentric reducers, crosses, pipe bends and end caps. Requirements can be supplied against standard dimensions as well as project-specific piping specifications.
Chrome Moly WP91 / CrMo WP91 Buttweld Fittings are mainly considered for high-temperature steam lines, thermal power projects, refineries, petrochemical plants and other pressure piping systems. WP91 is particularly relevant where higher strength at elevated operating temperatures is required.
For project orders, ASTM A234 WP91 Buttweld Fittings can be supplied with the required material documentation, inspection and testing requirements specified by the buyer. ARK Stainless Inc. supplies WP91 fittings for domestic projects as well as export requirements from India.
For ASTM A234 WP91 Buttweld Fittings, material verification is particularly important when the fittings are being supplied for high-temperature and pressure piping projects. Depending on the purchase specification, chemical analysis, mechanical testing, hardness checks, PMI, micro/macro examination and applicable NDT can be carried out before the material is released for supply.
Project customers can also specify additional inspection or testing requirements with their enquiry. Third-party inspection can be arranged when required, along with the relevant material and test documentatio
Once cleared for dispatch, Alloy Steel WP91 elbows, tees, reducers, crosses, bends and other buttweld fittings are packed according to their dimensions and shipment quantity. Wooden cases, crates or pallets can be used for export consignments, with suitable protection provided to the weld ends and identification markings during transportation.
ARK Stainless Inc. supplies Chrome Moly WP91 Buttweld Fittings from India for bulk, project and overseas requirements, with inspection, documentation and packing arranged according to the agreed order specifications.
| Grade | C | Mn | Si | S | P | Cr | Mo |
| Alloy Steel WP11 | 0.08-0.12 | 0.3-0.6 | 0.2-0.5 | ≤0.02 | ≤0.015 | 8-9.5 | 0.85-1.05 |
| Grade | Tensile Strength (Mpa) | Yield Strength (Mpa) | Elongation % |
| A234 WP22 | ≥590 | ≥415 | ≥20 |
