Heer Fittings, located in Delhi, India, stands out as a top manufacturer and supplier of Stainless Steel 310 / 310S Buttweld Fittings. They’re known for delivering outstanding quality and performance, especially in high-temperature and corrosive settings. Focusing on products like elbows, reducers, tees, and various buttweld components, Heer Fittings follows international standards such as ASTM A403 to guarantee exceptional strength, precise dimensions, and a long lifespan. With a robust distribution network and a dedication to customer satisfaction, they offer dependable solutions for industries such as petrochemicals, power generation, heat treatment, and more, both in India and around the world.
Specifications : ASTM A403 / ASME SA403
Dimensions : ASME/ANSI B16.9, ASME B16.28, MSS-SP-43
Size : 1/8” NB TO 48” NB. (Seamless & 100% X-Ray Welded, Fabricated)
Type : Seamless / Welded / Fabricated
Bending Radius : R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom
Thickness : Sch 5s, Sch 10s, Sch 40s, Sch 80s, Sch 160s, Sch XXS
The Stainless Steel 310 / 310S Buttweld Fittings are crafted with a high chromium (24–26%) and nickel (19–22%) content, which gives them remarkable resistance to oxidation and scaling at high temperatures. The 310S grade, being a low-carbon variant, enhances weldability and minimizes the risk of sensitization. Their mechanical properties boast a tensile strength of about 520 MPa, a yield strength of roughly 205 MPa, and an elongation of 40%. These characteristics make the fittings perfect for high-heat environments and pressure systems, ensuring both structural integrity and corrosion resistance in challenging industrial conditions.
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | Fe |
| SS 310 | 0.015 max | 2.0 max | 0.15 max | 0.020 max | 0.015 max | 24.00 – 26.00 | 0.10 max | 19.00 – 21.00 | 54.7 min |
| SS 310S | 0.08 max | 2.0 max | 1.00 max | 0.045 max | 0.030 max | 24.00 – 26.00 | 0.75 max | 19.00 – 21.00 | 53.095 min |
| SS 310H | 0.04 – 0.10 | 2.0 max | 1.00 max | 0.045 max | 0.030 max | 24.00 – 26.00 | – | 19.00 – 21.00 | 53.885 min |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 7.9 g/cm3 | 1402 °C (2555 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 40 % |
Heer Fittings is a leading supplier of Stainless Steel 310 Buttweld Fittings in Delhi, India. We offer an extensive range of Stainless Steel 310S Buttweld Fittings, renowned for their excellent corrosion resistance and high strength, which makes them perfect for demanding industrial applications like chemical processing, marine environments, and high-temperature systems. With a commitment to quality and reliable delivery, we ensure our clients receive top-tier products tailored to meet the specific needs of various industries.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
| STANDARD | SS 310 | SS 310S |
| WERKSTOFF NR. | 1.4841 | 1.4845 |
| UNS | S31000 | S31008 |
| JIS | SUS 310 | SUS 310S |
| BS | 310S24 | 310S16 |
| GOST | 20Ch25N20S2 | 20Ch23N18 |
| AFNOR | – | – |
| EN | X15CrNi25-20 | X8CrNi25-21 |
Stainless Steel 310 / 310S Buttweld Fittings from Heer Fittings offer exceptional corrosion resistance, especially in seawater and harsh environments. They are known for their high strength, durability, and resistance to pitting and crevice corrosion, ensuring long-lasting performance. We provide precise manufacturing, quality control, and reliable service for diverse industrial applications.
Stainless steel 310/310S Buttweld Fittings provide excellent high heat resistance, making them ideal for applications in heat exchangers, furnaces and boilers Their high chromium and nickel content ensures exceptional resistance resist corrosion and oxidation even in harsh environments. These materials retain strength and last longer at high temperatures, increasing reliability in extreme conditions. The low carbon content of 310S reduces carbide precipitation, improves weldability, and reduces susceptibility to intergranular corrosion. Their versatility and robust mechanical properties make them desirable in the industrial and chemical industries. Simple construction and low maintenance further enhance profitability.
| Nominal Pipe Size | Outside Diameter | Caps | Straight Tees | Straight Crosses | Stub Ends | |||
|---|---|---|---|---|---|---|---|---|
| (inches) | (mm) | (inches) | Length (inches) | Center to End (inches) | Center to End (inches) | Lap Diameter (inches) | Long Length (inches) | Short Length (inches) |
| 1/2 | 21.3 | 0.840 | 1 | 1 | – | 1 3/8 | 3 | 2 |
| 3/4 | 26.7 | 1.050 | 1 | 1 1/8 | – | 1 11/16 | 3 | 2 |
| 1 | 33.4 | 1.315 | 1 1/2 | 1 1/2 | 1 1/2 | 2 | 4 | 2 |
| 1 1/4 | 42.2 | 1.660 | 1 1/2 | 1 7/8 | 1 7/8 | 2 1/2 | 4 | 2 |
| 1 1/2 | 48.3 | 1.900 | 1 1/2 | 2 1/4 | 2 1/4 | 2 7/8 | 4 | 2 |
| 2 | 60.3 | 2.375 | 1 1/2 | 2 1/2 | 2 1/2 | 3 5/8 | 6 | 2 1/2 |
| 2 1/2 | 73.0 | 2.875 | 1 1/2 | 3 | 3 | 4 1/8 | 6 | 2 1/2 |
| 3 | 88.9 | 3.500 | 2 | 3 3/8 | 3 3/8 | 5 | 6 | 2 1/2 |
| 3 1/2 | 101.6 | 4.000 | 2 1/2 | 3 3/4 | 3 3/4 | 5 1/2 | 6 | 3 |
| 4 | 114.3 | 4.500 | 2 1/2 | 4 1/8 | 4 1/8 | 6 3/16 | 6 | 3 |
| 5 | 141.3 | 5.563 | 3 | 4 7/8 | 4 7/8 | 7 5/16 | 8 | 3 |
| 6 | 168.3 | 6.625 | 3 1/2 | 5 5/8 | 5 5/8 | 8 1/2 | 8 | 3 1/2 |
| 8 | 219.1 | 8.625 | 4 | 7 | 7 | 10 5/8 | 8 | 4 |
| 10 | 273.1 | 10.750 | 5 | 8 1/2 | 8 1/2 | 12 3/4 | 10 | 5 |
| 12 | 323.9 | 12.750 | 6 | 10 | 10 | 15 | 10 | 6 |
Yes, custom sizes for Stainless Steel 310 / 310S Buttweld Fittings are available at Heer Fittings. We offer tailored solutions to meet your specific requirements, ensuring optimal performance for your projects. For more information, please contact us at sales@heerfittings.com.
These Stainless Steel 310 / 310S Buttweld Fittings find extensive use in scenarios that involve extreme heat and corrosive environments. They’re particularly suited for furnace components, heat exchangers, oil refineries, thermal processing plants, and kiln linings. Their ability to resist high-temperature oxidation makes them ideal for combustion chambers and exhaust systems. Moreover, sectors like chemical processing, power generation, and cement manufacturing depend on these fittings for secure, durable, and leak-free piping systems. Their performance in high-pressure, high-temperature, and fluctuating thermal conditions guarantees a long operational life and less maintenance.
Get in touch with one of our Technical Sales Representatives to request a quote or get answers to any questions you may have.
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