Weston Stainless, based in Midland, UK, is a prominent distributor of stainless steel products of the highest quality, such as Stainless Steel 347H Fasteners. These fasteners are produced from grade 347H stainless steel, which is a high-carbon, stabilized austenitic stainless steel that possesses exceptional resistance to high temperatures and intergranular corrosion. Found in diverse shapes like nuts, bolts, screws, washers, and studs, SS 347H Fasteners abide by industry specifications like ASTM A193 and ASTM A320. Possessing superior creep strength, oxidation resistance, and mechanical strength, the fasteners find extensive use in high-performance industrial applications.
Stainless Steel 347H Fasteners have 17-20% chromium, 9-13% nickel, and columbium (niobium) and high carbon content to improve thermal stability and strength at high temperatures. They possess a tensile strength of 515 MPa, yield strength of 205 MPa, and elongation of 40%, which provides strong performance under harsh conditions. Their density is 7.9 g/cm³, and they possess a melting point of around 1400°C, which makes them ideal for high-heat applications.
|
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, 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, 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, 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 super 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.
These SS 347H Fasteners find extensive use in heat exchangers, boilers, pressure vessels, chemical processing plants, power plants, and aerospace systems because they are capable of functioning in harsh environments of extreme temperature and oxidation. Their creep deformation resistance and resistance to intergranular corrosion give them the potential to be applied in superheaters, exhaust systems, and high-stress structural components to provide long service life and efficient performance under aggressive industrial conditions.
Weston Stainless offers SS 347H Fasteners with Mill Test Certificates (MTC) according to EN 10204 3.1, confirming their chemical and mechanical conformance. The fasteners are properly packed in wooden crates, bubble wraps, or corrugated boxes to ensure safe transportation and avoid damage. With effective global supply chain management, Weston Stainless guarantees timely delivery and high-quality solutions for diverse industrial uses.
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