Akor Stainless is a well-respected manufacturer and supplier located in Abuja, Nigeria, known for its top-notch **Stainless Steel 347H Bolts**. These bolts are crafted to deliver exceptional strength, durability, and resistance to high-temperature oxidation and corrosion. With a commitment to meeting rigorous industrial standards, Akor Stainless guarantees precision in manufacturing and consistent performance across all its fastener offerings. The **Stainless Steel 347H Bolts** are commonly utilized in applications that demand outstanding mechanical properties and long-lasting reliability in tough environments, making them perfect for industries like petrochemical, power generation, and aerospace.
These bolts are primarily made of iron, featuring 17–19% chromium, 9–13% nickel, and a touch of columbium/tantalum to enhance stabilization against carbide precipitation. The “H” grade signifies a higher carbon content (up to 0.10%), which boosts strength at elevated temperatures. They boast a tensile strength of about 515 MPa, a yield strength close to 205 MPa, and impressive creep resistance. Even under high temperatures, they maintain their toughness and ductility, ensuring reliable performance during thermal stress and cyclic loading.
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 high-temperature and corrosive settings where long-term strength and oxidation resistance are essential. They’re perfect for heat exchangers, pressure vessels, boilers, exhaust manifolds, and furnace components. Industries such as petrochemical, refinery, power generation, and chemical processing depend on these bolts for their ability to uphold structural integrity in challenging service conditions. Their remarkable thermal stability and resistance to intergranular corrosion make them a go-to choice for demanding engineering and fabrication projects.
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