Stainless Steel 310H Buttweld Fittings are high-temperature, corrosion-resistant pipe fittings made from an austenitic stainless steel alloy that contains high chromium and nickel content. These fittings are specifically designed to perform in environments where heat, oxidation, and corrosion are constant challenges. Known for their durability and strength, ASTM A403 WP310H Stainless Steel Pipe Fittings are widely used in industries such as chemical processing, oil & gas, power generation, and heat treatment plants.
We manufacture and supply a complete range of SS WP310H Pipe Fittings including elbows, tees, reducers, stub ends, crosses, and caps in compliance with ASME SA403 310H Stainless Steel Buttweld Fittings standards. With years of experience in supplying top-grade stainless steel fittings, we ensure high precision, dimensional accuracy, and long-lasting performance for our clients worldwide.
What is Stainless Steel 310H?
Stainless Steel 310H is a high-carbon version of SS 310, developed to offer better strength at elevated temperatures. It contains about 25% chromium and 20% nickel, which gives it outstanding resistance to oxidation and carburization in high-temperature service. The “H” in 310H stands for “High Carbon,” making it ideal for applications above 500°C, where creep resistance is critical.
Due to its unique chemical composition, SS 310H offers:
- Excellent resistance to oxidation up to 1100°C
- Good resistance to sulfidation and carburization
- High mechanical strength and ductility
- Outstanding weldability and fabricability
These properties make ASTM A403 WP 310H Buttweld Fittings suitable for severe environments like furnace components, heat exchangers, and boiler tubes.
Grades and Standards of Stainless Steel 310H Buttweld Fittings
Our
- Material: Stainless Steel 310H (UNS S31009)
- Standard: ASTM A403 / ASME SA403
- Type: Seamless, Welded, and Fabricated
- Size Range: ½” NB to 48” NB
- Dimensions: ASME/ANSI B16.9, B16.28, MSS-SP-43
Types of Stainless Steel 310H Buttweld Fittings
We manufacture and supply all standard types of ASTM A403 WP310H Stainless Steel Pipe Fittings that meet international standards like ASME B16.9 and ASTM A403. Below are the major types:
➤ ASTM A403 WP 310H SS Elbow
Elbows are used to change the direction of flow within a pipeline system. We supply:
- ASTM A403 WP 310H Stainless Steel 45 Degree Elbow
- ASTM A403 WP 310H SS 90 Degree Elbow
- ASTM A403 WP 310H Short Radius Elbow Supplier in India
These elbows are available in both short radius and long radius designs to suit different installation requirements.
➤ ASTM A403 WP310H SS Tee
Tees allow branching of pipes and ensure a smooth flow of fluids. We offer Equal Tees, Reducing Tees, and Barred Tees under ASTM A403 WP310H Stainless Steel Pipe Fittings. Each tee is precisely engineered for optimal performance under pressure.
➤ ASTM A403 WP310H Stainless Steel Reducer
Reducers help connect pipes of different diameters while maintaining flow efficiency. We provide:
- Concentric Reducer
- Eccentric Reducer
These reducers are crafted to ensure minimal turbulence and smooth transitions within pipelines.
➤ ASTM A403 WP310H SS Stub Ends
Stub ends are used with lap joint flanges for systems requiring frequent disassembly and inspection. We are a trusted SS 310H Stubends Dealer, offering both long and short pattern stub ends as per ASME SA403 310H Stainless Steel Buttweld Fittings specifications.
➤ ASTM A403 WP310H SS Cross
Cross fittings connect four different pipes at a single point. Our ASTM A403 WP310H SS Cross fittings are designed to handle high-pressure systems efficiently, making them suitable for chemical and petroleum applications.
➤ ASTM A403 WP310H SS End Cap
End caps are used to close the ends of piping systems securely. As reputed Steel 310H Pipe End Cap Distributors, we supply both seamless and welded end caps with superior finishing for leak-proof performance. You can also find ASTM A403 WP310H SS End Cap options that match your specific project requirements.
➤ ASTM A403 WP310H SS Bends
Bends are used when a smooth curve is required in piping layouts. We manufacture ASTM A403 WP 310H SS Bends Fittings that minimize pressure drop and maintain uniform flow throughout the system.
Advantages of ASTM A403 WP310H Stainless Steel Buttweld Fittings
- Excellent High-Temperature Strength: Performs well in environments up to 1100°C.
- Superior Corrosion Resistance: High chromium and nickel content protect against oxidation and scaling.
- Good Weldability: Can be easily welded using standard techniques.
- Dimensional Stability: Maintains shape and strength under thermal cycling.
- Long Service Life: Reduces maintenance and replacement costs over time.
- Compatibility: Easily connects with other grades like Stainless Steel 304H Buttweld Fittings for mixed installations.
Applications of Stainless Steel 310H Buttweld Fittings
Owing to their superior heat resistance and mechanical strength, SS WP310H Pipe Fittings are used across multiple industries, including:
- Petrochemical and Refining Plants
- Power Generation and Boiler Systems
- Heat Exchangers and Furnace Parts
- Pharmaceutical and Chemical Processing Plants
- Pulp and Paper Industry
- Oil and Gas Pipelines
- Thermal Processing Equipment
These fittings are ideal for high-temperature operations, such as exhaust systems and heat treatment furnaces, where oxidation resistance is crucial.
Mechanical Properties of ASTM A403 WP310H SS Butt weld Fittings
| Property | Value |
|---|---|
| Tensile Strength | 515 MPa min |
| Yield Strength | 205 MPa min |
| Elongation | 40% min |
| Hardness (Brinell) | 217 max |
Chemical Properties of SS 310H Buttweld Fittings
| Element | Content (%) |
|---|---|
| Carbon (C) | 0.04 – 0.10 |
| Chromium (Cr) | 24.0 – 26.0 |
| Nickel (Ni) | 19.0 – 22.0 |
| Manganese (Mn) | ≤ 2.00 |
| Silicon (Si) | ≤ 1.50 |
| Phosphorus (P) | ≤ 0.045 |
| Sulfur (S) | ≤ 0.030 |
Manufacturing Process of ASTM A403 SS WP310H Welded Pipe Fittings
The production of ASTM A403 SS WP310H Welded Pipe Fittings involves several precise stages:
- Raw Material Selection – High-quality stainless steel billets and pipes are selected for uniformity and purity.
- Forming and Shaping – The material is hot-formed or cold-formed into elbows, tees, reducers, and caps.
- Heat Treatment – Fittings are heat-treated to enhance mechanical strength and corrosion resistance.
- Machining and Finishing – Each piece is machined for accuracy and polished for a smooth finish.
- Testing and Inspection – Non-destructive testing (NDT), dimensional checks, and hydro tests ensure that every product meets international standards.
We take great care to maintain dimensional tolerances and ensure that every fitting complies with ASTM A403 WP 310H Stainless Steel standards.
Quality Assurance and Testing
Every ASTM A403 WP310H SS Butt weld Fittings Exporter must ensure that products meet stringent quality standards. Our fittings undergo:
- PMI (Positive Material Identification)
- Radiographic Testing
- Hydrostatic and Pneumatic Testing
- Flattening and Flaring Tests
- Micro and Macro Examination
This ensures that our ASTM A403 WP310H Stainless Steel Pipe Fittings are reliable, leak-proof, and capable of handling extreme service conditions.
Why Choose Us as Your ASTM A403 WP 310H SS Butt weld Fittings Exporter?
We are one of the most trusted ASTM A403 WP 310H SS Butt weld Fittings Exporter and supplier in India. Our expertise in stainless steel manufacturing, combined with decades of industry experience, enables us to deliver precision-engineered fittings that meet your exact requirements. We offer:
- Custom manufacturing based on drawings and specifications
- Large inventory of ready-to-ship fittings
- Competitive prices and global delivery
- Commitment to quality, service, and timely supply
Let’s Find Your Fitting Solution
Stainless Steel 310H Buttweld Fittings are the perfect choice for high-temperature and high-pressure applications. Their superior mechanical strength, corrosion resistance, and reliability make them essential components in industrial piping systems.
As a trusted ASTM A403 WP310H SS Butt weld Fittings Exporter, we provide top-quality products that meet international standards. Whether you require ASTM A403 WP310H SS Cross, Steel 310H Pipe End Cap, or ASTM A403 WP310H SS Bends Fittings, we have the expertise and inventory to meet your needs — efficiently and economically.
Request Your Stainless Steel 310H Buttweld Fittings Quote Today!

