Tolu Fittings, located in Abuja, Nigeria, has earned a solid reputation as a reliable manufacturer and supplier of **Stainless Steel 310/310S Buttweld Fittings**. These fittings are celebrated for their outstanding resistance to heat and oxidation, making them a top choice for demanding environments. Crafted with precision in advanced manufacturing facilities and adhering to strict quality standards, Tolu Fittings guarantees durability and reliability in every product. Their diverse range of buttweld fittings, including elbows, tees, reducers, and caps, meets various industrial needs, supporting sectors like power generation, chemical processing, petrochemicals, and heat treatment with unmatched efficiency and strength.
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
Stainless Steel 310/310S Buttweld Fittings primarily consist of chromium (24–26%) and nickel (19–22%), along with trace amounts of manganese, silicon, and carbon. The Grade 310S variant features a lower carbon content, which enhances its weldability and minimizes carbide precipitation. These fittings boast impressive tensile strength of about 515 MPa, yield strength of 205 MPa, and an elongation of 40%. With exceptional creep strength, oxidation resistance up to 1100°C, and remarkable toughness, they are perfectly suited for high-temperature and corrosive service 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 % |
Tolu Fittings is a leading supplier of Stainless Steel 310 Buttweld Fittings in Abuja, Nigeria. 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 Tolu 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 Tolu Fittings. We offer tailored solutions to meet your specific requirements, ensuring optimal performance for your projects. For more information, please contact us at sales@tolufittings.com.
Stainless Steel 310/310S Buttweld Fittings find extensive use in high-temperature and corrosive settings. They are perfect for applications like furnace components, heat exchangers, kilns, combustion chambers, and equipment in power plants. Additionally, these fittings are utilized in petrochemical processing, thermal processing facilities, and the food industry, where resistance to oxidation and carburization is crucial. Their strength and durability ensure seamless connections in piping systems that handle hot gases, acids, and steam. Industries such as oil & gas, refineries, and chemical plants depend on these fittings for their reliability and long-lasting performance.
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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