Aditya Stainless has earned a solid reputation as a reliable manufacturer and supplier of top-notch Stainless Steel 347H Nuts in Kolkata, India. With years of experience in the stainless steel fastener industry, we deliver durable and high-performance SS 347H Nuts that adhere to global quality standards. Our product lineup features hex nuts, heavy hex nuts, lock nuts, and custom designs tailored to meet our clients’ specific needs. Built for tough applications, our SS 347H Nuts boast impressive resistance to high temperatures and intergranular corrosion. Supported by state-of-the-art manufacturing facilities and a skilled team, Aditya Stainless is your go-to partner for exceptional Stainless Steel 347H Nuts in Kolkata and throughout India.
Stainless Steel 347H Nuts are crafted from an austenitic stainless steel grade that’s stabilized with columbium (niobium) and has a higher carbon content. Typically, they contain 17-19% Chromium, 9-13% Nickel, along with small amounts of columbium/tantalum for stabilization. SS 347H is known for its outstanding resistance to intergranular corrosion and oxidation at elevated temperatures. The mechanical properties include a minimum tensile strength of 515 MPa, yield strength of 205 MPa, and an elongation of 40% over 50mm. With a density of 7.9 g/cm³ and the capability to endure service temperatures up to 870°C, these nuts are perfect for high-temperature settings.
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 Nuts find extensive use in industries that demand high-temperature and corrosion-resistant fastening solutions. They are commonly utilized in heat exchangers, boiler equipment, chemical processing units, petroleum refineries, power generation plants, and aerospace systems. In Kolkata, these nuts are favored for securing components in thermal and pressure-intensive systems due to their resistance to carbide precipitation and their ability to maintain mechanical strength under heat. SS 347H Nuts are also well-suited for cryogenic applications, exhaust systems, and high-pressure vessels, making them a versatile option across a range of industries.
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