Stainless Steel 310 Buttweld Fittings are widely used in high-temperature and corrosion-prone environments where durability and performance are essential. Designed from a heat-resistant alloy containing high chromium and nickel content, these fittings provide excellent oxidation resistance and superior strength even under extreme temperature variations.
We are one of the leading Stainless Steel 310 Pipe Fittings manufacturers in India, offering precision-engineered fittings that meet ASME B16.9 and ASTM A403 WP310 standards. Our range includes elbows, tees, reducers, caps, and stub ends available in various dimensions, shapes, and pressure ratings to meet diverse industrial needs.
What Are Stainless Steel 310 Buttweld Fittings?
Stainless Steel 310 Buttweld Fittings are components used to connect, change the direction, or terminate piping systems made from SS 310 material (UNS S31000 / DIN 1.4845). They are joined to pipes by welding, creating a seamless and leak-proof connection that ensures structural strength and integrity in high-pressure applications.
The grade 310 stainless steel is an austenitic alloy known for its high chromium (25%) and nickel (20%) content. This composition gives it exceptional resistance to oxidation, scaling, and carburization, making it ideal for high-temperature service conditions.
Common types of ASTM A403 WP310 Stainless Steel Buttweld Fittings include:
- Elbows (45°, 90°, 180°) – used to change pipe direction.
- Reducers (Concentric & Eccentric) – used to join pipes of different diameters.
- Tees & Crosses – used for branching pipe systems.
- End Caps – used to seal pipe ends.
- Stub Ends & Collars – used in lap joint flange connections.
Specifications of Stainless Steel 310 Buttweld Fittings
| Specification | Details |
|---|---|
| Standard | ASME B16.9 / B16.28, MSS SP-43 |
| Material Grade | ASTM A403 WP310 / WP310S |
| UNS Number | S31000 |
| DIN Equivalent | 1.4845 |
| Size Range | ½” to 48” (Seamless & Welded) |
| Type | Elbow, Tee, Reducer, Cap, Stub End, Cross |
| Wall Thickness | SCH 10S to SCH 160 / XXS |
| End Type | Beveled / Plain Ends |
| Form | Seamless, Welded, Fabricated |
Types of Stainless Steel 310 Pipe Fittings
➤ SS 310 Buttweld Elbow
We are a reputed SS 310 Buttweld Elbow Dealer in India supplying both short radius and long radius elbows. These elbows change the flow direction in piping systems and are available in 45°, 90°, and 180° angles.
Our ASME B16.9 ASTM A403 WP 310 Buttweld Elbow manufacturer in India ensures that each fitting is dimensionally accurate and performs reliably under pressure and heat.
➤ SS UNS S31000 Reducer
The SS UNS S31000 Reducer connects pipes of varying diameters to regulate flow. We supply both concentric and eccentric reducers that ensure smooth transitions and minimize turbulence. These reducers are highly resistant to thermal expansion and scaling.
➤ SS 310 End Pipe Cap
We are a reliable SS 310 End Pipe Cap Stockist and Best Price of 310 SS Pipe Cap Exporter, offering end caps that close the pipe ends effectively. These are widely used in industries to protect the pipe system during maintenance or shutdown.
➤ SS 310 Tee and Cross
Our ANSI B 16.9 ASTM A403 F310 Stainless Butt Weld Pipe Fittings include tees and crosses used to create multiple flow paths. The uniform wall thickness and corrosion resistance make them suitable for chemical and refinery applications.
➤ Stainless Steel 310 Welded Pipe Fittings
Our Stainless Steel 310 Welded Pipe Fittings are made from high-quality welded pipes that undergo strict non-destructive testing (NDT). They are ideal for applications requiring strength and flexibility without the high cost of seamless fittings.
Key Features of ASTM A403 WP310 Stainless Steel Buttweld Fittings
Our ASTM A403 SS 310 Buttweld Pipe Fittings offer a combination of mechanical strength, heat resistance, and corrosion resistance. Some of the main features include:
- Excellent Oxidation Resistance: Performs well in continuous service up to 1150°C and intermittent service up to 1035°C.
- High Temperature Strength: Suitable for environments with thermal cycling and high mechanical stress.
- Good Weldability: Easily welded using standard fusion methods without pre-heating or post-weld annealing.
- Resistance to Sulfidation & Carburization: Performs reliably in environments containing sulfur compounds or carbon gases.
- Durable & Cost-Effective: Long service life reduces maintenance and replacement costs.
Applications of Stainless Steel 310 Buttweld Pipe Fittings
Due to their exceptional corrosion and heat resistance, Stainless Steel 310 Pipe Fittings are widely used across industries such as:
- Petrochemical & Refinery Plant
- Power Generation & Thermal Plants
- Fertilizer & Chemical Processing Units
- Food Processing & Dairy Industry
- Heat Exchangers & Boilers
- Oil & Gas Transmission Pipelines
- Cement and Steel Manufacturing Units
They are especially suitable for furnace parts, combustion chambers, exhaust manifolds, and high-temperature structural applications.
Mechanical Properties of ASTM A403 WP310 Fittings
| Property | Value |
|---|---|
| Tensile Strength | 515 MPa min |
| Yield Strength | 205 MPa min |
| Elongation | 40% min |
| Hardness (Brinell) | ≤ 217 HB |
| Melting Point | 1400°C – 1455°C |
Chemical Composition of Stainless Steel 310
| Element | Content (%) |
|---|---|
| Chromium (Cr) | 24.0 – 26.0 |
| Nickel (Ni) | 19.0 – 22.0 |
| Carbon (C) | ≤ 0.25 |
| Manganese (Mn) | ≤ 2.00 |
| Silicon (Si) | ≤ 1.50 |
| Phosphorus (P) | ≤ 0.045 |
| Sulfur (S) | ≤ 0.030 |
| Iron (Fe) | Balance |
Equivalent Grades ASME SA403 WP310 Fittings
| Standard | Grade |
|---|---|
| ASTM / ASME | A403 WP310 |
| UNS | S31000 |
| WNR | 1.4845 |
| JIS | SUS 310 |
| EN | X15CrNi25-20 |
Why Choose Us as Your Stainless Steel 310 Pipe Fittings Manufacturer in India
As a trusted Stockist of Steel DIN 1.4845 Buttweld Pipe Fittings, we ensure every fitting undergoes thorough inspection and testing to meet international quality standards. Here’s why clients across the globe prefer us:
- Comprehensive Range: Full stock of elbows, reducers, tees, and caps in all sizes and thicknesses.
- Competitive Pricing: We offer the best price of 310 SS pipe fittings without compromising on quality.
- Quality Assurance: 100% radiography, PMI, and mechanical testing before dispatch.
- On-Time Delivery: Efficient logistics network ensuring prompt supply worldwide.
- Customization: We provide made-to-order fittings as per drawings or project requirements.
Let’s Find Your Fitting Solution
Stainless Steel 310 Buttweld Fittings combine strength, durability, and corrosion resistance to deliver dependable performance in extreme conditions. Whether you need elbows, reducers, tees, or caps, we supply premium-quality ASTM A403 WP310 Stainless Steel Buttweld Fittings that conform to ASME B16.9 standards and meet the demands of modern industries.
For bulk orders or customized requirements, reach out to our sales team — we’ll be happy to provide the right solution at the most competitive price.
Request Your Stainless Steel 310 Buttweld Fittings Quote Today!

