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Malik Fasteners is a leading manufacturer and supplier based in Manama, Bahrain, specializing in high-quality Stainless Steel 347H Bolts that are perfect for high-temperature and corrosive environments. Crafted with precision to meet international standards, these bolts offer outstanding mechanical strength, precise dimensions, and long-lasting reliability. Made from niobium-stabilized austenitic stainless steel with a high carbon content, Stainless Steel 347H ensures excellent creep resistance and minimizes sensitization during welding. Malik Fasteners caters to various industries, including petrochemical, power generation, chemical processing, and offshore sectors, providing bolts that guarantee secure connections, structural integrity, and dependable performance even in the toughest conditions.
Stainless Steel 347H Bolts 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 offers remarkable resistance to oxidation, pitting, and creep at elevated temperatures. On the mechanical side, SS 347H bolts showcase impressive tensile and yield strength, exceptional toughness, and great dimensional stability under thermal stress. The niobium stabilization helps prevent carbide precipitation during welding, ensuring corrosion resistance remains intact. These features make 347H bolts the go-to choice for critical high-temperature and corrosive environments, delivering reliable mechanical performance and long-lasting durability for demanding industrial fastening needs.
| 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 | – | |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 7.96 g/cm3 | 1450 °C | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 40 % |
| 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 Bolts, Square Bolts, U bolts, Eye bolts, T bolt, Hex Bolt, Lag Bolts, Counter sunk Bolts. |
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 Bolts find extensive use in industries that demand high-temperature resistance, corrosion protection, and mechanical reliability. They are particularly well-suited for applications in boilers, heat exchangers, pressure vessels, piping systems, and chemical processing.
We at Malik Fasteners maintain the exacting quality standards of our stainless steel 347H bolts, which is demonstrated by careful labeling. Our commitment is reflected in the trading invoices that go.” beyond, durable packaging, fumigation certificates, complete heat treatment records and strict quality control programs up to MTCs , PMI test certificates, and 100%; complete radiography test certificates further prove our commitment to excellent quality and reliability, so that each bolt is wrapped with the utmost care using protective materials to prevent damage at transport, guaranteeing arrival in optimum condition, ready for immediate use in demanding applications.
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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