Weston Stainless, which is headquartered in Midland, UK, is a reliable source of high-grade stainless steel products, offering tough and precision-fabricated solutions for diverse industrial uses. Their Stainless Steel 347 Fasteners are fabricated using columbium-stabilized austenitic stainless steel, which has excellent resistance to intergranular corrosion, oxidation, and high-temperature exposure. These fasteners are offered in different shapes including bolts, nuts, screws, washers, and studs, and offer reliable and secure connections in harsh conditions. With higher mechanical strength, weldability, and carbide precipitation resistance, SS 347 fasteners are best suited for applications demanding long-term performance and structural integrity.
Stainless Steel 347 Fasteners contain 17-19% chromium, 9-13% nickel, and columbium (niobium) for better stabilization against carbide precipitation and thermal stress. The tensile strength of these fasteners is 515 MPa, the yield strength is 205 MPa, and elongation is 40%. Their hardness is about 95 HRB. Their physical properties are a density of 7.9 g/cm³, melting point of 1400°C, and thermal conductivity of 16.3 W/m-K, providing good mechanical stability, corrosion resistance, and durability even under harsh operating conditions.
|
Material |
Specification |
Standards |
Size
|
Length |
|
Stainless Steel 347 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 | |
| 347 | min. max | 2.00 | – | 0.045 | – 0.08 | 0.030 | 17.0 19.0 | – | 0.75 | 9.0 13.0 | Nb=10(C+N) 1.0 |
| 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 | ||||
| 347 | 515 | 205 | 40 | 92 | 201 |
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Highly corrosion-resistant, Designed to withstand high temperatures and corrosive environments. They are available in various sizes, typically from M4 to M36, and standard dimensions such as 6mm to 30mm in thickness.
Offering excellent resistance to oxidation and corrosion, Come in sizes ranging from M6 to M36, with lengths varying from 25mm to 300mm. They are ideal for high-temperature and chemical-resistant applications.
Corrosion-resistant and durable, Used in extreme environments. They are available in sizes from M6 to M36 and standard lengths from 16mm to 100mm, suitable for high-stress applications and high-temperature conditions.
High corrosion resistance and stability under heat, Stainless Steel 347 threaded rods are available in diameters from M6 to M36 and lengths ranging from 100mm to 3000mm. They are used in heavy-duty and high-temperature settings.
Excellent resistance to oxidation and corrosion, Stainless Steel 347 screws come in sizes from M3 to M20, with lengths from 10mm to 150mm. They are suited for high-temperature and corrosive environments.
Superior corrosion and high-temperature resistance, Stainless Steel 347 washers are available in diameters ranging from M4 to M36. Thickness varies from 0.5mm to 5mm, making them suitable for various applications where durability is critical.
Stainless Steel 347 Fasteners find extensive application in aerospace, petrochemical, power generation, and marine sectors. Their high oxidation and corrosion resistance render them ideal for high-temperature uses like heat exchangers, boilers, exhaust systems, and refinery plant equipment. SS 347 fasteners are also employed in chemical processing plants, pressure vessels, and food processing equipment where they are subjected to aggressive environments. With great strength, weldability, and long life, SS 347 fasteners are an ideal selection for critical fastening applications in severe industrial processes.
Weston Stainless offers certificates of test, such as Mill Test Certificates (MTC) to EN 10204 3.1, and guarantees conformity to international quality standards. The fasteners are properly packed in wooden boxes, bubble wrap, or carton boxes to withstand transportation damage. With its effective network of logistics, Weston Stainless ensures timely and efficient worldwide shipping, catering to urgent industrial needs with care and precision.
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