Emilio Stainless is a trusted manufacturer and supplier located in Manila, Philippines, specializing in high-quality stainless steel 409 nuts. These nuts are celebrated for their impressive corrosion resistance, strength, and affordability. Crafted with precision and adhering to international standards, they offer dependable fastening solutions for a variety of industrial applications. Emilio Stainless is committed to ensuring that each stainless steel 409 nut boasts durability, excellent mechanical performance, and resistance to oxidation, making them perfect for sectors like automotive, construction, exhaust systems, and industrial equipment, both in the Philippines and beyond.
Stainless steel 409 nuts are composed of a ferritic stainless steel alloy that contains about 10.5–11.7% chromium, up to 1% nickel, manganese, and a low carbon content usually below 0.08%. This alloy is stabilized with titanium to prevent intergranular corrosion during welding. Thanks to this composition, the nuts offer moderate corrosion resistance, good oxidation resistance up to around 675°C, and outstanding weldability. They provide sufficient tensile strength, typically ranging from 380 to 450 MPa, making them suitable for fastening applications in mildly corrosive environments and at elevated temperatures.
| 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 |
| 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 | – |
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Stainless steel 409 nuts are ideal for high temperature applications. Available in sizes from M6 to M36, they are commonly used in automotive exhaust systems, heat exchanger systems and furnace components to provide durability and moderate corrosion resistance.
The stainless steel 409 coupling nuts are designed to connect the threaded rods in a high temperature environment. Sizes range from M6 to M36, making them perfect for use in automotive and industrial systems that require a combination of durable and durable components.
Featuring a nylon insert for a secure fastening, stainless steel 409 nylon insert nuts are available in sizes from M6 to M24. They offer high strength and moderate corrosion resistance, suitable for automotive and industrial applications.
Stainless steel 409 flange hex nuts for enhanced weight distribution with integrated flange. Available in sizes from M6 to M24, they are ideal for heavy duty vehicles and industrial applications that require durability.
Heavy duty stainless steel 409 heavy hex nuts are designed for high stress environments. Available in sizes from M6 to M36, these nuts are used in industrial machinery and automotive systems requiring high strength and moderate corrosion resistance.
Stainless steel 409 square nuts provide large surface area for efficient torque application. Sizes range from M6 to M24, making them suitable for secure bonding in industrial environments with corrosive softness.
These stainless steel 409 nuts find extensive use in automotive exhaust systems, industrial machinery, HVAC installations, and construction projects where moderate corrosion resistance and high-temperature performance are essential. Their ability to resist oxidation and thermal cycling makes them a cost-effective option for fastening components exposed to exhaust gases and outdoor conditions. Emilio Stainless ensures that every stainless steel 409 nut meets rigorous quality standards, delivering reliable strength, secure fastening, and long-lasting performance in demanding industrial settings.
Stainless steel 409 nuts are widely used where high temperatures require good oxidation and corrosion resistance. The ability to withstand high temperatures and gaseous corrosion makes them commonly used in automotive exhaust systems such as mufflers, catalytic converters, tailpipes and industrial heat exchangers, furnace components, and other areas a high temperature required for durability and long-term efficiency providing a variety of services.
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