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Brian Fasteners is a reliable manufacturer and supplier located in Houston, USA, with a focus on high-quality Stainless Steel 347H Bolts. With years of experience in the fastener industry, we’ve built a reputation for precision engineering, dependable service, and a strong commitment to providing durable, high-performance fastening solutions. Our Stainless Steel 347H Bolts are specifically designed to endure high temperatures and resist corrosive environments, making them perfect for a variety of industrial applications. At Brian Fasteners, we strictly follow international quality standards, ensuring our products meet the rigorous demands of diverse sectors like oil & gas, petrochemical, power generation, and marine engineering.
The composition of Stainless Steel 347H Bolts includes iron, chromium (17–19%), nickel (9–13%), carbon (0.04–0.10%), and columbium-tantalum stabilizers. This unique blend enhances their resistance to intergranular corrosion and high-temperature oxidation. On the mechanical side, 347H boasts a minimum tensile strength of 515 MPa, a yield strength of 205 MPa, and an elongation of 40%. It also maintains impressive creep strength and stress rupture properties at elevated temperatures. This material provides outstanding mechanical integrity, making it ideal for heavy-duty and high-stress applications across various industrial sectors.
| 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 are widely used in high-temperature settings where thermal stability and corrosion resistance are essential. These bolts are perfect for securing components in heat exchangers, pressure vessels, boilers, superheaters, and exhaust systems. Industries such as petrochemical, oil & gas, chemical processing, aerospace, and power generation depend on 347H bolts for their remarkable strength and durability in extreme conditions. Thanks to their excellent resistance to oxidation and intergranular corrosion, they are also favored in applications that involve continuous exposure to high temperatures and aggressive chemicals, ensuring a long service life and reduced maintenance in demanding environments.
We at Brian 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.
Brian Fasteners is a leading manufacturer and supplier of high-quality fasteners in Houston , USA, with over 8 years of experience serving global industries.
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