Home > Stainless Steel > Stainless Steel 310H Bolts
Stainless Steel 310H Bolts are tough, heat-resistant fasteners crafted for situations where both strength and resistance to corrosion are crucial, especially at high temperatures. Made from a high-carbon variant of the 310 grade, these bolts deliver outstanding mechanical strength even when exposed to intense heat, all while keeping excellent oxidation resistance. They’re perfect for use in furnaces, boilers, heat exchangers, and industrial equipment that face extreme thermal stress. Their durability, stability, and reliability make them a go-to choice in industries like petrochemical, power generation, and chemical processing, where high-temperature performance is a must.
These bolts are made up of chromium (24–26%), nickel (19–22%), and a higher carbon content compared to standard 310 stainless steel. This unique blend boosts their tensile and yield strength at high temperatures while also providing remarkable resistance to scaling and oxidation. Typically, they boast a tensile strength ranging from 515 to 690 MPa and a yield strength of about 205 MPa. Plus, they show excellent creep resistance, ductility, and stability during thermal cycling, making them incredibly reliable for structural and mechanical fastening in high-temperature settings.
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | Fe |
| 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 % |
Stainless Steel 310H Bolts find their place in various high-temperature industrial applications, such as furnace and kiln construction, boiler assemblies, heat exchangers, and equipment in petrochemical and refinery sectors, as well as thermal processing units. They’re also used in exhaust systems, incinerators, and high-heat structural assemblies, ensuring safe and durable fastening even under extreme conditions. Their ability to retain strength and resist corrosion at elevated temperatures makes SS 310H Bolts a top choice for critical industrial operations that require long-lasting reliability and high-performance fastening solutions.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
