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Kunj Sheets and Plates is a well-respected manufacturer and supplier of Stainless Steel 439 Sheets and Plates, proudly based in Chennai, India. Renowned for their quality, precision, and reliability, Kunj delivers stainless steel solutions tailored to the varied needs of industries like automotive, chemical, and home appliances. Stainless Steel 439 is a titanium-stabilized ferritic alloy that boasts impressive corrosion resistance and can withstand high temperatures. At Kunj, every product is crafted to meet international standards, utilizing cutting-edge techniques and undergoing rigorous quality checks. The company is dedicated to ensuring timely deliveries, competitive pricing, and outstanding customer service for clients both in India and abroad.
The composition of Stainless Steel 439 Sheets and Plates primarily includes chromium (17–19%) and iron, with a touch of titanium for stabilization. This ferritic stainless steel features low carbon content and is nickel-free, making it a cost-effective choice. It provides excellent corrosion resistance, especially in oxidizing environments, and performs admirably under high temperatures. Its mechanical properties include a tensile strength ranging from about 415 to 585 MPa and a yield strength of around 275 MPa. Additionally, it offers good formability and weldability, making it perfect for applications that demand both corrosion resistance and structural integrity.
| Specifications | ASTM A240, ASME SA240 |
| Standard | JIS, ASTM, AISI, GB, EN, DIN |
| Surface | 2B, 2D, BA, NO.4, NO.8, 8K, Mirror, Checkered, Embossed, Hair Line, Sand Blast, Brush, Etching |
| Finish | Cold rolled, Hot rolled |
| Width | 1000-2000mm |
| Length | 1000-6000mm |
| Thickness | 0.40mm – 6.00mm |
| Grade | Fe | Cr | Si | Ti | Mn | Ni | Mo | Nb/Cb | P | N | C | S |
| SS 439 | 81.3535 | 17.35 | 0.35 | 0.335 | 0.25 | 0.200 | 0.1 | 0.02 | 0.02 | 0.0100 | 0.01 | 0.0015 |
| Tensile strength (annealed) | 438 MPa | 63500 psi |
| Yield strength (annealed/ @strain 0.200 %) | 263 MPa | 38100 psi |
| Modulus of elasticity | GPa | ksi |
| Poisson’s ratio | 0.270 – 0.290 | 0.270 – 0.290 |
| Elongation at break (In 2″, 50% cold worked) | 2.80% | 2.80% |
| Hardness, Rockwell B (annealed) | 72.9 | 72.9 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
| Grade | WERKSTOFF NR. | UNS |
| SS 439 | 1.4510 | S43035 |
Stainless Steel 439 Sheets and Plates are a go-to choice in industries that require a balance of moderate corrosion resistance and high-temperature performance. In the automotive world, you’ll find them in exhaust systems, catalytic converter housings, and various underbody components, thanks to their impressive oxidation resistance. The appliance industry also relies on them for ovens, cooktops, and panels. Their sleek finish and durability make them perfect for architectural uses, while chemical processing equipment benefits from their corrosion resistance in less aggressive environments. Plus, their titanium stabilization helps prevent intergranular corrosion, making them a reliable option for welding and forming tasks.
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