Khaleed Stainless, Riyadh, Saudi Arabia, is a renowned high-quality stainless steel products supplier, offering strong solutions to various industries globally. Among its top-quality products, Stainless Steel 347H Bolts are greatly appreciated for their long-lasting nature and superior performance at extreme temperatures. These bolts, produced with accuracy and bright finish, show outstanding oxidation and corrosion resistance, providing long-lasting reliability even under severe conditions. Engineered to international standards, Khaleed Stainless 347H Bolts are strong, stable, and highly resistant, making them a top choice for applications in industries where reliability is a must and for high-temperature uses.
Stainless Steel 347H Bolts are columbium-stabilized high-carbon austenitic stainless steel bolts for use in high-temperature environments. They contain chromium (17–19%), nickel (9–13%), and columbium (niobium), which helps prevent intergranular corrosion and does not allow the precipitation of carbides. The increased carbon content enhances strength and stability under high temperatures. The bolts retain tensile strength of approximately 515 MPa, yield strength of 205 MPa, and elongation of 40%, with good resistance to thermal expansion and scaling. Their strong mechanical and corrosion-resistant properties ensure that they are dependable in harsh industrial and chemical processing environments.
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 find extensive application in industries demanding dependable performance in corrosive and high-temperature environments. For aerospace use, they find application in exhaust systems and structural parts that are subjected to intense heat. For petrochemical and power generation sectors, they find application in furnaces, heat exchangers, reactors, and boiler systems. Their high resistance against sulfuric and nitric acids renders them ideal for chemical processing plant equipment. With stability, strength, and superior resistance against oxidation, these bolts have long service lives in harsh industrial use and high-stakes infrastructure projects.
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