Lecong Stainless, a well-respected manufacturer and supplier based in Da Nang, Vietnam, specializes in high-quality Stainless Steel 409 Fasteners designed for durability, oxidation resistance, and cost-effective performance. This ferritic stainless steel grade, enriched with titanium for stabilization, is perfect for applications that face high temperatures and mild corrosion. Our SS 409 Fasteners, which include bolts, nuts, washers, and screws, are crafted with precision, featuring accurate threading, a fine finish, and a long service life. They find extensive use in automotive, construction, exhaust systems, and thermal applications, delivering reliable fastening solutions with impressive strength, weldability, and resistance to scaling at elevated temperatures.
Stainless Steel 409 Fasteners are composed of 10.5–11.75% chromium, low carbon (≤0.08%), and titanium for stabilization, along with trace amounts of manganese, silicon, phosphorus, and sulfur. This blend ensures excellent oxidation resistance, moderate corrosion resistance, and stability at high temperatures. In terms of mechanical properties, SS 409 Fasteners offer a tensile strength ranging from 380–450 MPa, yield strength around 170–240 MPa, and good elongation, striking a balance between toughness and ductility. They can withstand scaling up to 675°C and provide dependable performance in mildly corrosive environments, making them ideal for fastening applications that encounter heat, stress, and wear.
|
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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These SS 409 Nuts offer 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.
SS 409 Stud Bolts offer 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.
With 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.
Offering 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.
With 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.
Our strict quality control is guaranteed by quality control inspections taking place at each production stage. All led by our firm in-house. This commitment to excellence guarantees that each product meets precise specifications and industry standards. Furthermore, we are very proud of our fast logistics network, which allows us to deliver orders quickly to clients all over the world. Our focus on reliability and timeliness ensures customer satisfaction and reinforces our reputation as a trusted partner for stainless steel solutions.
Stainless Steel 409 Fasteners are a go-to choice in industries that need tough and heat-resistant fastening solutions. In the automotive world, you’ll find them commonly used in exhaust systems, mufflers, and catalytic converter assemblies. The construction and infrastructure sectors rely on them for structural joints, roofing, and frameworks that face heat and mild corrosion. Power plants and petrochemical facilities also make use of SS 409 Fasteners in ducting, heat exchangers, and furnace components. Plus, they’re found in industrial ovens, chimneys, and food processing equipment. Thanks to their great balance of strength, weldability, and resistance to oxidation, SS 409 Fasteners deliver reliable performance even in the most demanding applications.
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