Based in Mumbai, India, Harsh Metalloys is a reputable producer and supplier of premium stainless steel 310H bolts that are designed to withstand high pressure and temperatures. Our SS 310H bolts, which are expertly crafted and adhere to international standards, perform exceptionally well in applications that demand exceptional resistance to heat and corrosion. To guarantee constant strength, dependability, and durability, these bolts are manufactured using high-quality raw materials and sophisticated production techniques. With a commitment to quality assurance, timely delivery, and customer satisfaction, Harsh Metalloys has earned the trust of clients across sectors such as petrochemicals, power generation, and thermal processing industries.
Bolts made of stainless steel 310H have a higher carbon content (≥0.04%), 24–26% chromium, and 19–22% nickel, which increases their strength and resistance to creep at high temperatures. These bolts retain their mechanical integrity under heat stress and show outstanding oxidation resistance up to 1100°C. Their mechanical characteristics include an approximate elongation of 40%, a yield strength of 205 MPa, and a tensile strength of 515 MPa. Because of the alloy’s strong structure, SS 310H bolts can withstand harsh operating environments that include heat and corrosive substances.
Material | Specification | Standards | Size | Length |
Stainless Steel 310H Bolts | ASTM, ASME and API | ASTM B 193 / ASME SB 193 | M02 to M30 | 3 mm To 200 mm |
| Element | SS 310H |
| Ni | 0.75 |
| C | 0.15 |
| Mn | 1.00 max |
| P | 0.04 max |
| S | 0.03 max |
| Si | 1.00 max |
| Cr | 11.5 – 13.5 |
| Mo | – |
| N | – |
| Element | SS 310H |
| Tensile Strength (MPa) min | 480 |
| Yield Strength 0.2% Proof (MPa) min | 275 |
| Elongation (% in 50mm) min | 16 |
| Rockwell B (HR B) max Hardness | 95 |
| Brinell (HB) max Hardness | 201 |
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Stainless Steel 310H bolts are high-performance Fasteners designed for extreme heat environments, offering superior oxidation and corrosion resistance. Ideal for high-temperature applications in industries like petrochemical and aerospace.
Custom Stainless Steel 310H Hex Bolt is a custom-made fastener with a square head, providing excellent thermal resistance for high-temperature industrial and aerospace applications
Stainless Steel 310H leg bolt features a unique leg design for high-temperature applications. It offers excellent heat and corrosion resistance, making it suitable for securing components in extreme industrial environments.
Stainless Steel 310H expansion anchor bolt is a high-temperature resistant fastener designed for anchoring in concrete or masonry. It expands upon installation, ensuring secure and reliable holding in harsh environments
Stainless Steel 310H Hex Flange Head Bolt features a hexagonal head with an integrated flange, providing high heat resistance and excellent corrosion resistance, ideal for secure clamping in demanding industrial applications
Stainless Steel 310H full threaded bolts are high-temperature resistant fasteners with threads running the entire length. They offer superior corrosion and oxidation resistance, ideal for extreme industrial and aerospace applications.
Bolts made of stainless steel 310H are frequently utilised in corrosive and high-temperature settings where robustness and longevity are essential. In the petrochemical, power generation, and chemical processing sectors, common uses include heat exchangers, boilers, furnaces, and incinerators. Because of their resistance to oxidation and thermal fatigue, these bolts are perfect for use in exhaust systems, superheaters, flue gas cleaning units and thermal processing systems. Furthermore, structural assemblies subjected to extended heat, high-pressure vessels, and refinery equipment all use SS 310H bolts. They are a crucial fastening element in industrial machinery and infrastructure because of their dependability in harsh environments.
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