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Lina Fasteners, based in Tunis, Tunisia, is a trusted manufacturer and supplier of Stainless Steel 409 Nuts designed for applications requiring dependable performance at elevated temperatures and moderate corrosion resistance. With advanced manufacturing processes and strict quality control, the company produces nuts that meet international standards and precise industrial specifications. Stainless Steel 409 Nuts from Lina Fasteners offer reliable mechanical strength, good oxidation resistance, and thermal stability, making them cost-effective for moderately corrosive environments. By combining technical expertise with customer-focused service, Lina Fasteners supports automotive, power generation, industrial machinery, and engineering sectors with durable and efficient fastening solutions.
Stainless Steel 409 Nuts are manufactured from a ferritic stainless steel alloy containing approximately 10.5–11.75% chromium, with titanium added for stabilization. This composition enhances resistance to oxidation and reduces the risk of intergranular corrosion during thermal cycling. Mechanically, 409 Nuts provide moderate tensile and yield strength, good ductility, and stable performance under elevated temperatures. While their corrosion resistance is lower than austenitic grades, they perform well in high-temperature and mildly corrosive environments, offering reliable mechanical stability for automotive and industrial applications.
|
Element |
Content |
|---|---|
|
Carbon |
0.08 maximum |
|
Manganese |
1.00 maximum |
|
Phosphorus, maximum |
0.045 maximum |
|
Sulfur, maximum |
0.045 maximum |
|
Silicon |
1.00 maximum |
|
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 | – |
|
Material |
Specification |
Standards |
Size |
Length |
|
Stainless Steel 409 Nut |
ASTM, ASME and API |
ASTM B 193 / ASME SB 193 |
M02 to M30 |
3 mm To 200 mm |
To satisfy our clients needs by providing high quality products at competitive price as per the schedule and to maintain long term relationship with our clients.
Stainless Steel 409 Nuts are widely used in applications where thermal stability and resistance to oxidation are more important than high corrosion protection. They are commonly applied in automotive exhaust systems, manifolds, and emission control assemblies. In power generation and industrial heating systems, these nuts are used in boilers, furnaces, and heat exchangers. Stainless Steel 409 Nuts are also suitable for industrial machinery, structural assemblies, and mechanical components operating in moderately corrosive environments. Their balance of strength, cost-efficiency, and high-temperature performance makes them an ideal choice for durable fastening solutions in automotive and industrial applications.
We prioritize quality assurance with the utmost dedication. Our rigorous testing program includes hardness, chemical analysis, levelling, and micro-macro testing. We also analyze pitting Resistance to ensure the reliability of our products. This commitment to professionalism is supported by necessary documentation, such as marketing invoices, packaging documents, certificates of origin, vouchers and more. We provide third-party inspection certificates to further confirm the quality of our products. Trust us to deliver the best products backed by advanced quality assurance methods.
Lina Fasteners is a leading manufacturer and supplier of high-quality fasteners in Tunis, Tunisia, with over 8 years of experience serving global industries.
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