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The Fasteners Mart, founded in Mumbai, India, is a prominent fastener manufacturer and supplier of top-grade industrial fasteners. A specialist in diverse products, the company provides world-class Stainless Steel 347H Nuts renowned for their excellent high-temperature and corrosion resistance. Dedicated to precision and dependability, The Fasteners Mart caters to various industries with strong and reliable fastener solutions that meet top performance standards.
Stainless Steel 347H Nuts are mainly made up of iron, chromium (up to 18%), nickel (up to 50%), and traces of niobium and tantalum. This gives them high-temperature resistance and general strength. The mechanical properties of 347H are high tensile strength (approximately 520-700 MPa), good creep and stress rupture resistance and satisfactory fatigue strength. The alloy also has superb weldability and intergranular corrosion resistance, making it well suited to challenging applications in chemical process and aerospace industries.
| 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 |
| 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. |
To satisfy our clients needs by providing high quality products at competitive price as per the schedule and to maintain long term relationship with our clients.
Stainless Steel 347H Nuts have extensive application in high-temperature applications because they possess great corrosion and oxidation resistance. The nuts are perfectly suitable for petrochemical, aerospace, power generation, and chemical processing industries, where strength and durability are imperative. They find extensive use in the fabrication of boilers, heat exchangers, and pressure vessels. Moreover, 347H Nuts are also intergranular corrosion-resistant, so they can be used in welding operations and acidic environments and high-temperature conditions.
We maintain the highest quality standards for our stainless steel 347H nuts, as evident in our carefully crafted packaging. Our commitment to excellence also involves sophisticated packaging solutions designed for international trade. Every product is supported by EN 10204/3.1b certificates, PMI test reports and 100% radiography test reports. We also offer third-party inspection certificates to support our commitment to quality and reliability. With safe, protective packaging, we see to it that all products arrive in pristine condition, ready to be fulfilled to our customers’ precise specifications.
The Fasteners Mart is a leading manufacturer and supplier of high-quality fasteners in Mumbai, India, with over 8 years of experience serving global industries.
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