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Harsh Metalloys, a reputable manufacturer and supplier located in Mumbai, India, specializes in high-quality Stainless Steel 409 Sheets and Plates. These products are popular for their impressive oxidation resistance, good formability, and affordability. SS 409 is a ferritic stainless steel that’s often used in situations where moderate corrosion resistance and high-temperature strength are essential. Crafted to comply with ASTM A240 and similar standards, these sheets and plates come in a variety of thicknesses, widths, and surface finishes. Perfect for automotive, industrial, and architectural uses, Harsh Metalloys guarantees that each item provides durability, precise dimensions, and reliable performance even in tough environments like heat and exhaust systems.
Stainless Steel 409 Sheets and Plates are composed of 10.5–11.75% Chromium, low Carbon (≤ 0.08%), and may have trace amounts of Titanium to improve weldability and reduce carbide precipitation. These ferritic stainless steel products deliver moderate tensile strength (380–450 MPa), good ductility, and outstanding oxidation resistance up to 650°C. While SS 409 cannot be hardened through heat treatment, it retains its structural integrity during thermal cycling. The sheets and plates are easy to fabricate, weld, and shape, making them ideal for applications that require both corrosion resistance and high-temperature performance at a budget-friendly price.
Specifications< ASTM A240 / ASME SA240
Size : 1/4″ to 4″
Range : 5mm To 150mm
Thickness : 4.0mm – 100mm
Hardness : Soft, Hard, Half Hard, Quarter Hard, Spring Hard etc.
Finish : Hot rolled plate (HR), Cold rolled sheet (CR), 2B, 2D, BA NO(8), SATIN (Met with Plastic Coated)
Form : Plain Sheet, Shim Sheet, Perforated Sheet, Chequered Plate, Strip, Flats, Blank (Circle), Ring (Flange)
| 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 | – |
| Grade | C | Ni | Si | N | S | Mn | P | Cr | Ti |
|---|---|---|---|---|---|---|---|---|---|
| SS 409 | 0.030 max | 0.5 max | 1 max | – | 0.020 max | 1 max | 0.040 max | 10.5 – 11.7 | 6*(%C+%N |
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These hot rolled sheets and plates are known for their impressive strength, excellent weldability, and resistance to oxidation. They’re perfect for applications like automotive exhaust systems, heat shields, and structural components.
On the other hand, the cold rolled sheets and plates boast a smooth finish and precise dimensions. They’re commonly used in automotive trims, appliance panels, and industrial enclosures.
If you’re looking for something with slip resistance and durability, the chequered plates are a great choice. They’re ideal for flooring, stair treads, and industrial platforms, especially in corrosive or high-temperature settings.
For those needing ventilation and drainage, the perforated sheets are the way to go. They not only serve practical purposes in filters and guards but also add aesthetic appeal in architectural applications that require resistance to corrosion and heat.
The shim sheets are thin, flexible, and resistant to corrosion, making them suitable for precision adjustments, insulation, and gaskets in automotive and engineering projects.
Lastly, the polished sheets offer a sleek finish along with good corrosion resistance. They’re often used in decorative trim, kitchen equipment, and visible automotive parts.
Stainless Steel 409 Sheets and Plates are a go-to choice for automotive exhaust systems, heat shields, catalytic converters, and mufflers, thanks to their impressive heat and oxidation resistance. They’re also perfect for various industrial uses, like furnace components, heat exchangers, and air ducting. In the construction and infrastructure fields, these plates shine in applications such as roofing, paneling, and cladding, where moderate corrosion resistance does the trick. With their excellent formability and weldability, they’re a favorite among fabricators and OEMs looking for a strong yet budget-friendly material. SS 409 sheets and plates offer a reliable solution for parts that need to withstand high temperatures and mild corrosion.
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