Stainless Steel 347H Fasteners are top-notch components crafted for situations that demand exceptional corrosion resistance, high-temperature strength, and lasting durability. Thanks to the addition of niobium, 347H effectively prevents intergranular corrosion, making these fasteners perfect for use in boilers, heat exchangers, pressure vessels, and industrial systems that operate under extreme temperatures and harsh chemical conditions.
These fasteners are mainly made up of iron, chromium, nickel, and niobium. Chromium plays a key role in providing corrosion resistance, while nickel enhances toughness and ductility. Niobium, on the other hand, stabilizes the microstructure, ensuring that mechanical integrity is maintained even at elevated temperatures. With their impressive tensile strength, creep resistance, and dimensional stability, these fasteners are well-suited for challenging high-temperature and corrosive environments.
|
Material |
Specification |
Standards |
Size
|
Length |
|
Stainless Steel 347H Fasteners
|
IS
BS
ASTM
|
ASTM / ASME – A/ SA 193 |
3 mm
to
200 mm
|
M02 to M33
|
| Grade | Mn | N | P | C | S | Cr | Mo | Si | Ni | Other | |
| 347H | min. max | 2.00 | – | 0.045 | 0.04 0.10 | 0.030 | 17.0 19.0 | 3 – 4 | 0.75 | 9.00 13.00 | – – |
| 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 | 95 | 217 |
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Highly resistant to corrosion, Stainless Steel 347H Nuts are ideal for high-temperature environments. Available in sizes from M2 to M64, they offer robust performance in harsh conditions, maintaining structural integrity and reliability.
Corrosion-resistant and suited for high-stress applications, Stainless Steel 347H Stud Bolts come in diameters ranging from M6 to M36 and lengths up to 1000 mm. They are used in industrial settings where high strength and resistance to oxidation are required.
Featuring excellent resistance to oxidation and corrosion, Stainless Steel 347H Bolts are available in sizes from M5 to M50, with lengths varying from 10 mm to 300 mm. They are ideal for high-temperature and corrosive environments.
Highly resistant to corrosion, Stainless Steel 347H threaded rods are available in diameters from M6 to M36 and lengths up to 3000 mm. They provide excellent mechanical strength and are used in high-temperature applications.
Offering superb corrosion resistance, Stainless Steel 347H screws are available in sizes from M3 to M20 and lengths ranging from 10 mm to 100 mm. They are suitable for high-temperature and aggressive chemical environments.
Corrosion-resistant and durable Stainless Steel 347H washers come in sizes ranging from M2 to M64. They are designed to distribute load evenly and prevent surface damage in high-temperature and corrosive environments.
We have incorporated comprehensive documentation with Stainless Steel 347H Fasteners like commercial invoice, packing list, fumigation certificate, heat treatment chart, quality assurance plan, NABL-approved lab test report etc. To ensure full satisfaction for customers, several test certificates with our Stainless Steel 347H Fasteners are also provided, including Material Test Certificate (MTC) as per the EN 10204/3.1b, PMI Test Certificate, 100% radiography test report, and Third Party Inspection Certificate.
Stainless Steel 347H Fasteners find their place in power plants, petrochemical industries, chemical processing equipment, and high-temperature machinery. Their unique blend of mechanical strength, thermal stability, and corrosion resistance guarantees secure, reliable, and long-lasting fastening solutions. These fasteners offer a durable, cost-effective, and trustworthy option for various industrial, structural, and engineering applications.
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