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.
| Specifications | : | ASTM A 193 ASME SA 193 |
| Standard | : | DIN, ASTM, BS and all International Standards |
| Length | : | 3 mm to 200 mm |
| Size | : | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
| Type | : | Hex Head nuts, Square nuts, Lock nuts, Eye nuts, wing nuts, T nuts, Panel Nuts, Coupling Nuts, Dome nuts, Acorn Nuts. |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | |
| 347H | min. | 0.04 | – | – | – | – | 17.0 | 3.00 | 9.0 | – |
| max. | 0.10 | 2.0 | 1.00 | 0.045 | 0.030 | 19.0 | 4.00 | 13.0 | – | |
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 347H | 515 | 205 | 40 | 92 | 201 |
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A corrosion-resistant product, Stainless Steel 347H nuts are available in sizes ranging from M6 to M64. They are designed for high-temperature applications, offering excellent creep resistance and stability in extreme conditions, suitable for aerospace and power generation industries.
A corrosion-resistant product, Stainless Steel 347H coupling nuts connect two male threads and come in sizes from M6 to M36. They provide high strength and thermal stability, making them ideal for high-temperature applications in industrial and aerospace settings.
A corrosion-resistant product, Stainless Steel 347H nylon insert nuts, or lock nuts, are available in sizes from M3 to M36. The nylon insert prevents loosening under vibration, providing reliable performance in high-temperature environments where stability and security are crucial.
A corrosion-resistant product, Stainless Steel 347H flange hex nuts feature a built-in washer-like flange and come in sizes from M5 to M20. They offer enhanced load distribution and stability in high-temperature applications, ensuring durability and reliability.
A corrosion-resistant product, Stainless Steel 347H heavy hex nuts are larger and thicker, available in sizes from M10 to M48. They provide increased strength and thermal stability, making them suitable for heavy-duty and high-temperature industrial applications.
A corrosion-resistant product, Stainless Steel 347H square nuts have a larger surface area for contact, available in sizes from M6 to M30. They are ideal for high-temperature applications that require secure fastening in confined spaces and robust performance.
Stainless Steel 347H Nuts are packed in heavy-duty materials such as wooden boxes and pallets to prevent the nuts from external damage. Our product is hand-packed, and hence the Nuts are free from scratches or dents. The finished product reaches the client in excellent condition, and customers are consistently satisfied and impressed by the performance and long-lasting features of the Stainless Steel 347H Nuts.
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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