Weston Stainless, Midland, UK is a reliable source of excellent-quality stainless steel fasteners offering long-lasting and resistant solutions for industrial uses. One of the most important products of the company is Stainless Steel 409 Fasteners, which is produced from grade 409 stainless steel, an alloy with ferritic composition widely recognized for its great resistance to oxidation and moderate corrosion protection. It is available in shape form as bolts, nuts, washers, screws, and studs, which provides versatility in industries. Made up mostly of iron, chromium, and minute amounts of nickel, these fasteners have good mechanical strength, weldability, and high-temperature characteristics, with applications in the automobile, exhaust systems, and structural fields.
Stainless Steel 409 Fasteners have 10.5-11.75% chromium, 0.5% nickel, 0.03% carbon, and minute quantities of manganese, silicon, and nitrogen, with moderate corrosion resistance and strength. Their mechanical properties include a tensile strength of approximately 380-450 MPa, a yield strength of 170 MPa, and a hardness of up to 89 HRB, ensuring durability under high temperatures. The density of 409 stainless steel is 7.8 g/cm³, with a melting point of around 1530°C, making it suitable for heat-exposed applications. These fasteners also exhibit good thermal expansion and conductivity properties, ensuring stability in demanding environments.
|
Material |
Specification |
Standards |
Size |
Length |
|
Stainless Steel 409 Fasteners |
ASTM, ASME and API |
ASTM B 193 / ASME SB 193 |
M02 to M30 |
3 mm To 200 mm |
|
Element |
Content |
|---|---|
|
Carbon |
0.08 max |
|
Manganese |
1.00 max |
|
Phosphorus, max |
0.045 max |
|
Sulfur, max |
0.045 max |
|
Silicon |
1.00 max |
|
Nickel |
0.5 |
|
Chromium |
11.75 |
|
Molybdenum |
– |
| Tensile Strength/Ultimate Tensile Stress (UTS) – (Mpa) | 450 |
| Yield Strength/Proof Stress(0.2% Offset) (YS) – (Mpa) | 240 |
| Elongation in 4D (El) | 25% min |
| Reduction | – |
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Excellent corrosion resistance and are typically used in automotive exhaust systems. They are available in sizes ranging from M6 to M30, with various dimensions to suit different applications.
Excellent corrosion resistance and are designed for high-temperature environments. They are available sizes from M6 to M30 and lengths from 50mm to 300mm. Their versatility ensures reliable performance and durability for demanding industrial applications.
Corrosion resistance, these bolts are ideal for exhaust systems and other automotive applications. Sizes generally range from M6 to M30, with lengths varying from 20mm to 200mm, depending on the specific requirements.
Good resistance to corrosion, these rods are used in various construction and industrial applications. They come in diameters from M6 to M30 and lengths from 100mm to 1000mm, with custom lengths available.
These screws provide reliable corrosion resistance and are commonly used in automotive and industrial applications. Sizes range from M3 to M12, with lengths from 10mm to 100mm, designed to accommodate different fastening needs.
Excellent corrosion resistance, these washers distribute load and reduce stress on bolted connections. They are available in diameters from M6 to M30 and thicknesses tailored to specific applications.
Stainless Steel 409 Fasteners are extensively employed in automobile exhaust systems, mufflers, catalytic converters, heat exchangers, and power plants for oxidation and heat stress resistance. They are utilized in construction, railway equipment, petrochemical plants, and farm machinery as well, for reliability in normal corrosive surroundings. They find applications in industrial furnaces, gas turbines, and welded construction, owing to their high temperature capability and price effectiveness. Their resistance to chemical exposure, mechanical stress, and temperature fluctuations increases their viability for use in high-stakes applications across industries.
Weston Stainless offers mill test certificates (MTC) to EN 10204 3.1/3.2 standards for assurance of material and mechanical requirements. The fasteners are safely packaged in wooden crates, cartons, or poly bags to secure them against any damage during shipping and storage. With its robust supply chain management and international network of logistics, the company maintains timely delivery without compromising on strict quality control according to international specifications and customer orders.
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