Adam Stainless is your go-to source for top-notch **Stainless Steel 347H bolts** right from Canberra, Australia. These bolts are designed to deliver outstanding strength, resist corrosion, and maintain heat stability, making them perfect for tough industrial settings. Crafted to meet rigorous international standards, they boast precise threading, consistent dimensions, and dependable mechanical performance. With Adam Stainless’s Stainless Steel 347H bolts, you can count on secure, long-lasting fastening solutions that excel in high-temperature and corrosive environments.
These bolts are made from a special austenitic stainless steel alloy that includes about 17–19% chromium, 9–13% nickel, and is stabilized with niobium (columbium) to prevent carbide precipitation. The higher carbon content boosts creep strength and mechanical stability, even when exposed to temperatures as high as 925°C, while niobium enhances resistance to intergranular corrosion. This alloy provides impressive tensile strength ranging from 515 to 620 MPa and a yield strength close to 205 MPa, along with excellent oxidation resistance.
Material | Specification | Standards | Size | Length |
Stainless Steel 347H Bolts | ASTM, ASME and API | ASTM B 193 / ASME SB 193 | M02 to M30 | 3 mm To 200 mm |
| Element | SS 347H |
| 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 |
| Element | SS 347H |
| 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 | – |
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Stainless Steel 347H Bolts are high strength, heat resistant fasteners designed for extreme temperatures and hot environments. They provide excellent oxidation properties and durability, ideal for aerospace and industrial applications.
Custom Stainless Steel 347H Hex Bolt is a high heat resistance fastener with a hexagonal head, tailored to specific dimensions. Provides exceptional durability and resistance to extreme heat applications.
Stainless Steel 347H Leg Bolt is a durable high heat resistant fastener with a long threaded shaft and flat head, engineered for durability and stability in extremely hot conditions in
Stainless Steel 347H Expansion Anchor Bolt is a heat-resistant fastener for concrete or masonry. It expands in the hole as it tightens, providing a firm grip.
Stainless Steel 347H Hex Flange Head Bolt features a hexagonal head with an integrated flange for improved weight distribution. Provides superior thermal resistance and durability to extreme temperatures and environmental corrosion.
Stainless steel 347H fully threaded bolts have threads running the full length, for permanent clamping ability and superior heat resistance. They are ideal for demanding applications that require durability and heat resistance.
You’ll find Stainless Steel 347H bolts being used across various sectors, including **power generation, petrochemical, chemical processing, aerospace, and heat treatment industries**. They’re particularly well-suited for **boilers, heat exchangers, pressure vessels, and high-temperature piping systems**, ensuring durable, corrosion-resistant connections that maintain their integrity and performance under extreme thermal and mechanical pressures.
Stainless Steel 347H Bolts are commonly used in high-temperature environments such as aerospace, power generation and petrochemical industries. They are perfect for applications in furnaces, reactors, and exhaust systems dominated by extreme temperatures and hot conditions. These bolts are also used in chemical industries. Due to their resistance to sulfuric and nitric acids. Their durability and thermal stability make them suitable for applications requiring reliable performance in high temperatures and harsh environments.
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