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Malik Fasteners is a reputable manufacturer and supplier based in Manama, Bahrain, specializing in top-notch Stainless Steel 347H Nuts designed for high-temperature and corrosive industrial settings. Crafted with precision to meet international standards, these nuts guarantee outstanding mechanical strength, precise dimensions, and long-lasting durability. The Stainless Steel 347H, which is a niobium-stabilized austenitic stainless steel with a higher carbon content, provides excellent creep resistance and helps avoid sensitization during welding. Malik Fasteners caters to various industries, including petrochemical, power generation, chemical processing, and offshore sectors, offering fastening solutions that ensure secure connections, structural integrity, and reliable performance even in challenging environments with high temperatures and aggressive chemicals.
Stainless Steel 347H Nuts are made up of chromium (17–19%), nickel (9–13%), and niobium for stabilization, along with a higher carbon content to boost high-temperature strength. This unique blend gives them remarkable resistance to oxidation, pitting, and creep when exposed to elevated temperatures. On the mechanical side, SS 347H nuts showcase high tensile strength, good hardness, exceptional toughness, and stability under thermal stress. The niobium stabilization prevents carbide precipitation during welding, which helps maintain their corrosion resistance. These features make 347H nuts perfect for critical high-temperature and corrosive environments, ensuring secure fastening, mechanical reliability, and long-lasting durability in various industrial applications.
| 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 find their place in industries that demand high-temperature performance, corrosion resistance, and mechanical reliability. They are particularly well-suited for securing boilers, heat exchangers, pressure vessels, piping systems, and chemical processing equipment, making them an essential component in many demanding applications.
We maintain strict quality standards for our stainless steel 347H nuts, modeled by our carefully designed packaging. Our commitment extends to advanced packaging, with trade. We provide EN 10204/3.1b certificates, PMI test certificates, and 100% radiography test reports. Additionally, third-party inspection certificates further affirm our dedication to quality and reliability. We ensure that our products are securely protected during transit, arriving in optimal condition to meet the precise requirements of our customers.
Malik Fasteners is a leading manufacturer and supplier of high-quality fasteners in Manama, Bahrain, with over 8 years of experience serving global industries.
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