Walid Stainless, based in Tunis, Tunisia, is a trusted manufacturer and supplier of premium stainless steel products. Among their offerings are Stainless Steel 347H Bolts, engineered for applications requiring exceptional high-temperature strength, corrosion resistance, and long-term durability. These bolts are ideal for industrial, chemical, and power-generation assemblies exposed to extreme heat and harsh environments. At Walid Stainless, each bolt is manufactured with precision and undergoes strict quality control to ensure consistent performance. Clients rely on 347H Bolts for secure, reliable, and long-lasting fastening solutions, making them a preferred choice for demanding high-temperature industrial projects.
Stainless Steel 347H Bolts are made from a titanium-stabilized austenitic stainless steel alloy containing approximately 17–19% chromium, 9–13% nickel, and 0.04–0.10% carbon. Titanium stabilization prevents sensitization and enhances corrosion resistance, particularly at elevated temperatures. These bolts typically exhibit tensile strength between 550–700 MPa and hardness around 180–220 HB. The austenitic structure ensures excellent mechanical durability, creep resistance, and dimensional stability under thermal and mechanical stress. 347H Bolts are suitable for industrial, chemical, and high-temperature fastening applications requiring long-term reliability and resistance to oxidation and corrosion.
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.
we prioritize quality and reliability by conducting rigorous in-house testing on all our products to ensure they meet the highest standards. Our comprehensive testing procedures include material and performance evaluations, ensuring optimal durability and performance. Additionally we offer third-party inspection services to provide further assurance to our customers. With a commitment to prompt delivery. We ensure that all orders are processed efficiently and shipped on time, meeting the needs of our clients without compromise.
Stainless Steel 347H Bolts are widely used in industries requiring high-temperature, corrosion-resistant, and durable fastening solutions. They are ideal for boilers, heat exchangers, chemical processing equipment, power-generation machinery, and structural assemblies exposed to extreme temperatures and aggressive environments. The titanium-stabilized austenitic structure ensures long-term dimensional stability, mechanical reliability, and resistance to stress corrosion. Engineers and technicians rely on 347H Bolts for safe, secure, and consistent fastening performance. Walid Stainless guarantees that each bolt meets strict quality standards, providing dependable materials for chemical, power, and high-temperature industrial projects where durability, strength, and performance are critical.
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