Weston Stainless, Midland, UK, is a prominent manufacturer and supplier of high-grade stainless steel products, offering long-lasting solutions to different industries. Among its wide variety, Stainless Steel 409 Bolts are renowned for their superior strength, resistance to oxidation, and affordability. These bolts, in hex, square, U-bolt, T-bolt, and custom forms, are produced from Grade 409 stainless steel, a ferritic chromium-containing alloy for enhanced corrosion resistance. With excellent mechanical properties and high-temperature stability, these bolts are extensively used in structural and industrial applications demanding durability, strength, and moderate corrosion resistance.
Stainless Steel 409 Bolts consist of iron (balance), 10.5-11.75% chromium, 0.08% maximum carbon, and small amounts of manganese, silicon, and phosphorus. They possess a tensile strength of about 65 ksi (450 MPa), yield strength of 30 ksi (205 MPa), and hardness of up to 200 HB. They possess physical properties of density 7.75 g/cm³, thermal conductivity of 24.9 W/m·K, and melting point of about 1450°C. They owe their high-temperature resistance, good weldability, and moderate corrosion resistance, and are therefore applicable in a range of industrial conditions.
|
Material |
Specification |
Standards |
Size |
Length |
|
Stainless Steel 409 Bolts |
ASTM, ASME and API |
ASTM B 193 / ASME SB 193 |
M02 to M30 |
3 mm To 200 mm |
| Element | SS 409 |
| Tensile Strength (MPa) min | 480 |
| Yield Strength 0.2% Proof (MPa) min | 275 |
| Elongation (% in 50mm) min | 16 |
| Rockwell B (HR B) max Hardness | 95 |
| Brinell (HB) max Hardness | 201 |
| Element | SS 409 |
| Ni | 0.75 |
| C | 0.15 |
| Mn | 1.00 max |
| P | 0.04 max |
| S | 0.03 max |
| Si | 1.00 max |
| Cr | 11.5 – 13.5 |
| Mo | – |
| N | – |
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Stainless Steel 409 bolts are durable, high-temperature resistant fasteners with good corrosion resistance. Ideal for automotive exhaust systems and industrial applications, they offer strength and performance in harsh environments.
Custom Stainless Steel 409 Hex Bolt is a high heat resistant fastener with a square head, made to a specific size. Provides durability and corrosion resistance for automotive and demanding industrial applications.
High strength fastener with a long threaded bolt and flat head. Provides durability and corrosion resistance for industrial applications and high temperatures.
Corrosion-resistant fasteners for concrete or masonry protection. It expands in the hole as it tightens, providing a firm and reliable grip.
Hexagonal head with an integrated flange for better weight distribution. It provides strength and corrosion resistance, suitable for automotive and industrial applications.
Threads along their entire length, offering consistent clamping force and high-temperature resistance. They are ideal for automotive and industrial applications requiring strength and durability.
Stainless Steel 409 Bolts have found extensive usage in industries like automotive, construction, power plants, and exhaust systems because of their superb resistance to high temperature and affordability. They are used extensively in automobile exhaust manifolds, catalytic converters, and fasteners in industrial machinery. Their fair corrosion resistance also makes them suitable for applications in heat exchangers, ducts, and structural elements exposed to heat and mild corrosive conditions. Their high strength and weldability provide sustained performance in applications requiring high performance where strength, oxidation resistance are important.
Weston Stainless provides Stainless Steel 409 Bolts with test certificates, such as mill test reports (MTR), third-party inspection reports, and conformity certifications. The bolts are carefully packaged in wooden crates, cartons, or protective wraps to avoid damage during shipping. The company provides reliable global delivery through air, sea, or land transportation, keeping the product integrity intact and satisfying customers through secure and efficient shipping solutions.







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