Lecong Stainless stands out as a top-notch manufacturer and supplier based in Da Nang, Vietnam, specializing in high-quality Stainless Steel 347H Nuts designed to excel in high-temperature and corrosive settings. Crafted with precision to adhere to international standards, these nuts promise durability, stability, and resistance to scaling and intergranular corrosion. Thanks to their enhanced carbon content, they offer improved creep strength, making them perfect for demanding industrial applications. Lecong Stainless is dedicated to delivering cost-effective, high-performance fastening solutions, earning their reputation as a trusted choice for stainless steel fasteners both in Vietnam and around the globe.
These Stainless Steel 347H Nuts are made up of chromium (17–19%) and nickel (9–13%), along with niobium stabilizers and a higher carbon content that boosts creep and high-temperature strength. Additional elements like manganese, silicon, and carefully controlled carbon levels enhance their workability and toughness. With a tensile strength of approximately 515 MPa, a yield strength of about 205 MPa, and an elongation of 40%, these nuts are built to last. They also boast excellent resistance to intergranular corrosion and oxidation at temperatures up to 1500°F (816°C). With their remarkable strength, thermal stability, and durability, Stainless Steel 347H Nuts ensure reliable fastening in high-stress and elevated-temperature environments.
| 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.
You’ll find Stainless Steel 347H Nuts widely utilized across various industries, including petrochemical, power generation, chemical processing, and oil and gas. They’re perfect for securing components in boilers, heat exchangers, pressure vessels, and high-temperature piping systems. In aerospace and marine settings, they provide stability and resist corrosive atmospheres. Their ability to handle thermal cycling makes them suitable for furnaces, exhaust systems, and refinery equipment. With their long-lasting performance and resistance to deformation under heat, Stainless Steel 347H Nuts are a trustworthy option for critical engineering applications where strength and reliability are paramount.
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