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Alloy Steel Buttweld Fittings

ASTM A234 WP11 WP22 WP91 Alloy Steel Buttweld Fittings Manufacturer in India
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Alloy Steel Buttweld Fittings Manufacturer | ASTM A234 WP11, WP22 & WP91 Fittings Supplier in India

Leading producer of Alloy Steel Buttweld Fittings in accordance with ASTM A234 WP5, WP9, WP22, and WP91 standards. Our offerings include elbows, tees, reducers, caps, and custom fittings. Ready for export and certified by IBR.
STAINLESS INDIA is a reputable manufacturer, exporter, and stockist of Alloy Steel Buttweld Fittings, offering a diverse selection of high-temperature and high-pressure grades. Our fittings are produced in accordance with ASTM A234, ASME B16.9, B16.28, and MSS-SP standards, available in grades A234 WP5, WP9, WP11, WP22, and WP91. We engage in global exports and are ISO-certified, guaranteeing superior mechanical strength, resistance to corrosion, and long-lasting durability in challenging industrial settings.
We provide a variety of products including Elbows, Tees, Reducers, Stub Ends, Caps, Crosses, Pipe Bends, and Custom Fabricated Fittings in Alloy Steel grades WP5, WP9, WP11, WP22, and WP91.

Product Range

Types of Alloy Steel Buttweld Fittings We Manufacture

Elbows
  • 45° / 90° / 180° Elbows
  • Long Radius (LR)
  • Short Radius (SR)
Tees & Reducers
  • Equal & Reducing Tee
  • Concentric Reducer
  • Eccentric Reducer
  • Cross (Equal/Reducing)
Caps & Stub Ends
  • End Caps / Pipe Caps
  • Stub Ends (Short)
  • Stub Ends (Long)
Bends & Custom
  • Pipe Bends (2D, 3D, 5D)
  • Custom Bends
  • Custom Fabricated Fittings
Material Specifications

Available Grades

Material Category Available ASTM A234 Grades
Chrome-Moly Fittings High-Temperature Service
WP1 WP5 (CL.1 / CL.3) WP9 (CL.1 / CL.3) WP11 WP12 WP22 WP91

Technical Specifications

Standard ASTM A234 / ASME SA234
Manufacturing Standard ASME B16.9, ASME B16.28, MSS SP-43
Size Range 1/2" NB to 48" NB
Schedule SCH 10, SCH 20, SCH 40, SCH 80, SCH 160, XXS
Type Seamless, Welded, Fabricated
End Bevel End

Available Alloy Steel Buttweld Fittings

  • 90 Degree Elbow
  • 45 Degree Elbow
  • 180 Degree Elbow
  • Long Radius Elbow
  • Short Radius Elbow
  • Equal Tee
  • Reducing Tee
  • Concentric Reducer
  • Eccentric Reducer
  • Pipe Cap
  • Stub End
  • Cross
  • Pipe Bend

Advantages of Alloy Steel Buttweld Fittings

  • Excellent creep resistance
  • Superior high-temperature strength
  • Good corrosion resistance
  • Long service life
  • Excellent weldability
  • Low maintenance
  • Pressure-resistant construction
  • Suitable for critical industrial applications

Inspection & Documentation

Every shipment is supplied with complete documentation including Mill Test Certificate (EN 10204 3.1), heat treatment records, dimensional inspection reports, packing list, commercial invoice, certificate of origin and third-party inspection reports whenever requested by the customer.

Packaging & Delivery

Products are packed in fumigated wooden boxes, export-quality wooden pallets, waterproof wrapping and customized packaging suitable for sea freight, air freight and domestic transportation. Each fitting is properly marked for complete traceability.

How to Select the Correct Alloy Steel Buttweld Fittings

When selecting Alloy Steel Buttweld Fittings, consider the operating temperature, working pressure, pipe schedule, fitting dimensions, applicable ASTM grade, corrosion requirements, welding process, inspection requirements and applicable industry standards to ensure long-term performance.

Applicable Standards & Specifications

Our Alloy Steel Buttweld Fittings are manufactured according to ASTM A234, ASME SA234, ASME B16.9, ASME B16.28, MSS SP-43 and customer project specifications. Products are available in ASTM A234 WP1, WP5, WP9, WP11, WP12, WP22 and WP91 grades for high-temperature and high-pressure applications.

Available Sizes

Outside Diameter 1/2" NB to 48" NB
Wall Thickness SCH 10 to XXS
Manufacturing Type Seamless • Welded • Fabricated
Pressure Rating As per ASME standards

Available Material Grades

  • ASTM A234 WP1
  • ASTM A234 WP5
  • ASTM A234 WP9
  • ASTM A234 WP11
  • ASTM A234 WP12
  • ASTM A234 WP22
  • ASTM A234 WP91

Frequently Searched Alloy Steel Grades

We manufacture and supply ASTM A234 WP1, WP5, WP9, WP11, WP12, WP22 and WP91 Alloy Steel Buttweld Fittings in seamless and welded construction. These grades are widely used in power generation, refinery, petrochemical and high-temperature piping systems requiring excellent creep resistance and long service life.

Common Product Configurations

Product Options
Elbows 45°, 90°, 180°, LR, SR
Reducers Concentric, Eccentric
Tees Equal, Reducing
Caps Standard & Heavy Wall
Stub Ends Long Pattern, Short Pattern

Our Quality Commitment

Every Alloy Steel Buttweld Fitting is manufactured under strict quality control procedures using certified raw materials. Products are inspected throughout production and supplied with complete documentation, ensuring compliance with applicable ASTM, ASME and customer project specifications.

Technical & Procurement Support

Our technical sales team assists customers in selecting the correct Alloy Steel grade, dimensions, schedules, pressure ratings and inspection requirements for refinery, petrochemical, power generation and industrial piping projects.

Manufacturing Capabilities

Our manufacturing facility produces standard and custom Alloy Steel Buttweld Fittings including elbows, tees, reducers, pipe bends, stub ends, caps and fabricated fittings for domestic and international projects. Every fitting undergoes strict quality inspection before dispatch.

Why Global Buyers Choose STAINLESS INDIA

  • ISO Certified Manufacturer
  • Worldwide Export Experience
  • Fast Delivery
  • Third Party Inspection Available
  • EN 10204 3.1 Certification
  • Competitive Factory Pricing
  • Complete Material Traceability
  • Custom Manufacturing
  • Technical Sales Support

Every Alloy Steel Buttweld Fitting supplied by STAINLESS INDIA is manufactured using traceable raw materials and supplied with complete quality documentation, ensuring consistent performance in critical industrial piping systems worldwide.

Standards
  • ASTM A234 / ASME SA234
  • NACE MR0175 / MR0103 Compatible
Manufacture
  • Type: Seamless & Welded
  • SCH: 10, 20, 40, 80, 160, XXS
Certification
  • EN 10204 3.1 / 3.2 Certificates
  • ISO 9001:2015

Why Choose Alloy Steel Buttweld Fittings?

Alloy Steel Buttweld Fittings are engineered for high-pressure and high-temperature piping systems where ordinary carbon steel fittings cannot provide the required mechanical strength. ASTM A234 WP11, WP22 and WP91 fittings offer excellent creep resistance, oxidation resistance and long service life in critical industrial applications.

These fittings are widely used in thermal power plants, refineries, petrochemical facilities, fertilizer plants, offshore platforms, chemical processing industries and high-temperature steam pipelines. Manufactured according to ASME B16.9, they provide precise dimensions, smooth flow characteristics and excellent weldability.

STAINLESS INDIA manufactures seamless and welded Alloy Steel Buttweld Fittings with complete traceability, EN 10204 3.1 certification, third-party inspection and worldwide export packaging.

Manufacturing Process

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How We Manufacture Alloy Steel Buttweld Fittings

Our Alloy Steel Buttweld Fittings are manufactured using premium alloy steel raw materials through hot forming, cold forming, machining, heat treatment, beveling, dimensional inspection, non-destructive testing and final quality inspection. Every fitting is checked according to ASTM A234 and ASME B16.9 requirements before dispatch.

How We Manufacture Alloy Steel Buttweld Fittings

The manufacturing process begins with certified Alloy Steel raw materials. Depending on the product type and size, fittings are produced using hot forming, cold forming or seamless manufacturing methods. Heat treatment is performed according to ASTM specifications to achieve the required mechanical properties. Each fitting is then machined, beveled, inspected and tested before final packaging.

Every production batch undergoes dimensional inspection, Positive Material Identification (PMI), hardness testing and visual inspection to ensure compliance with ASTM A234 and ASME B16.9 requirements.

Benefits of ASTM A234 WP11, WP22 & WP91 Grades

Grade Typical Application
WP11 Steam piping and power plants
WP22 Refineries and petrochemical plants
WP91 Ultra-high temperature boiler systems

Major Industries Using Alloy Steel Buttweld Fittings

  • Oil & Gas Processing
  • Thermal Power Stations
  • Nuclear Power Plants
  • Petrochemical Plants
  • Chemical Industries
  • Fertilizer Plants
  • Sugar Industries
  • Paper Mills
  • Marine & Offshore
  • LNG Projects
  • Boiler Manufacturing
  • Pressure Vessel Fabrication

Frequently Requested Documents

  • EN 10204 3.1 Mill Test Certificate
  • Third Party Inspection Report
  • Heat Treatment Report
  • PMI Report
  • NABL Laboratory Test Report (when required)
  • Packing List
  • Commercial Invoice
  • Certificate of Origin

Export Packaging

Products are packed using export-quality wooden boxes, fumigated wooden crates, pallets, bubble wrapping and waterproof packing to ensure safe transportation by sea, air and road. Each fitting is marked with heat number, grade, size and customer identification for full traceability.

Why Engineers Prefer Alloy Steel Buttweld Fittings

Engineers prefer Alloy Steel Buttweld Fittings because they provide superior mechanical strength, excellent resistance to elevated temperatures, long service life and dependable performance under high-pressure operating conditions. Their compatibility with Alloy Steel piping systems makes them a preferred choice for critical industrial applications.

Related Standards

  • ASTM A234
  • ASME B16.9
  • ASME B16.28
  • MSS SP-43
  • EN 10204 3.1
  • NACE MR0175

Quality Assurance & Testing

  • Positive Material Identification (PMI)
  • Hydrostatic Testing
  • Ultrasonic Testing
  • Radiography Testing
  • Magnetic Particle Testing
  • Dye Penetrant Testing
  • Hardness Testing
  • Visual Inspection
  • Dimensional Inspection
  • EN 10204 3.1 Certification

Worldwide Supply Capability

STAINLESS INDIA exports Alloy Steel Buttweld Fittings to more than 70 countries with complete export documentation including commercial invoice, packing list, certificate of origin, EN 10204 3.1 MTC, third-party inspection reports and customized export packing suitable for sea and air shipments.

These fittings are widely used with Alloy Steel Pipes in thermal power plants, refineries, petrochemical facilities, fertilizer plants, offshore platforms, chemical processing industries and high-temperature steam pipelines. Manufactured according to ASME B16.9, they provide precise dimensions, smooth flow characteristics and excellent weldability.

STAINLESS INDIA manufactures seamless and welded Alloy Steel Buttweld Fittings together with Alloy Steel Flanges and Alloy Steel Forged Fittings with complete traceability, EN 10204 3.1 certification, third-party inspection and worldwide export packaging.

We regularly supply Alloy Steel Buttweld Fittings along with Alloy Steel Pipes, Alloy Steel Flanges, and Alloy Steel Forged Fittings to EPC contractors, power plants, refineries, petrochemical companies, offshore projects, LNG terminals, fertilizer plants, pharmaceutical industries, chemical plants, desalination plants, paper mills, cement plants, sugar industries and heavy engineering companies worldwide.

When selecting Alloy Steel Buttweld Fittings, consider operating temperature, working pressure, pipe schedule, fitting dimensions, applicable ASTM grade, corrosion requirements, welding process, inspection requirements and applicable industry standards. For complete piping systems, these fittings are commonly installed with Alloy Steel Pipes, Alloy Steel Flanges, and Alloy Steel Forged Fittings to ensure long-term performance.

Why Choose STAINLESS INDIA?

Alloy Steel Buttweld Fittings

Fully Certified

ISO, IBR, PED & CE Certified Manufacturer ensuring strict international quality compliance.

Rigorous Testing

In-house production with rigorous quality assurance and testing according to international standards.

CNC Precision

Precision Manufacturing utilizing CNC Technology for absolute dimensional accuracy and consistency.

Global Logistics

Fast dispatch and global logistics support with shipping to over 40 countries worldwide.

Extensive Stock

Availability of ready-to-ship stock in various Alloy Steel grades, schedules, and sizes.

Competitive Pricing

Competitive factory pricing paired with assured rapid delivery for time-critical projects.

Export Packaging

Export-quality packaging and professional logistical assistance for secure transit.

EPC Trusted

Relied upon by EPC contractors, refineries, and heavy industries globally for major projects.

Full Traceability

Complete documentation including EN 10204 3.1 certification provided with every order.

Applications

Power Plants (Thermal, Nuclear)
Oil Refineries & Petrochemicals
Chemical Processing Units
Aerospace & Defense
Structural Infrastructure
High-Pressure Piping Systems
Boiler & Heat Exchangers
Steam Lines & High-Temp Piping
Sugar, Paper & Pulp Industries

Documents Supplied

  • Mill Test Certificate (EN 10204 3.1 / 3.2)
  • Third-Party Inspection Reports (SGS, TUV, DNV)
  • IBR & NACE Certification (if required)
  • PMI, Ultrasonic, Radiography Reports
  • Dimension & Tolerance Reports
  • Origin Certificate, Invoice & Packing List

Related Alloy Steel Products

Frequently Asked Questions – Alloy Steel Buttweld Fittings

Yes, our A234 WP grades are specifically engineered for high-temperature, high-pressure settings, such as power plants and boilers.

We provide UT, RT, PMI, Hydro Testing, and comprehensive material traceability along with test certificates.

Yes. We offer IBR-approved alloy steel fittings complete with all required documentation.

Items in stock are dispatched within 2–5 working days. Custom orders require 7–15 days, depending on the quantity and specifications.

Type of Alloy Steel Buttweld Fittings Available

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WP5 WP9 WP11 buttweld fitting suppliers India IBR approved alloy steel fittings seamless alloy steel pipe fittings
A234 WP91 elbow and tee high pressure alloy fittings stockist

Global Export Network

We export to more than 70+ countries:

USA • UK • Germany • Italy • UAE • Saudi Arabia • Qatar • Oman • Kuwait • Singapore • Malaysia • Indonesia • Australia • South Africa • Brazil • Mexico • India

All Shipments Include:
  • Packing List
  • Invoice
  • MTC 3.1 / 3.2
  • Third-Party Inspection (TUV/LR/BV) if required
  • Heat Number Traceability

Request a Quotation Today

Looking for dependable Alloy Steel Pipes, Alloy Steel Buttweld Fittings, Alloy Steel Flanges or Alloy Steel Forged Fittings? We respond within 24 hours.