Aditya Stainless is a well-respected manufacturer and supplier based in Kolkata, India, known for its top-notch Stainless Steel 443 Tubing. This tubing is designed to offer outstanding corrosion resistance, heat resistance, and formability. SS 443, a ferritic stainless steel, serves as a budget-friendly alternative to austenitic grades like 304, providing similar performance in moderately corrosive settings. Aditya Stainless produces this tubing to meet international standards, ensuring it’s used in various sectors, including HVAC, construction, and food equipment. With state-of-the-art production facilities and rigorous quality control, the company guarantees exceptional durability, surface finish, and dimensional accuracy, making it a go-to choice for both domestic and industrial needs.
Stainless Steel 443 Tubing generally consists of 18–20% chromium, 1–2% molybdenum, low carbon content (<0.03%), and stabilizers like niobium or titanium to improve intergranular corrosion resistance. As a ferritic grade, it boasts good thermal conductivity, lower thermal expansion, and impressive oxidation resistance. Its mechanical properties include a tensile strength of at least 415 MPa, yield strength of at least 275 MPa, and an elongation of around 20%. SS 443 is known for its excellent formability and weldability, making it ideal for deep drawing and fabrication. It also shows better resistance to stress corrosion cracking compared to many austenitic grades, especially in chloride-rich or humid environments.
| 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 | 1000mm-2000mm |
| Length | 1000mm-6000mm |
| Thickness | 0.40mm – 6.00mm |
| C | Si | Mn | P | S | Cr | Ni | Mo | Other |
| ≤0.030 | ≤1.00 | ≤1.00 | ≤0.040 | ≤0.015 | ≤17.5-18.5 | ——– | ———- | Ti 0.10-0.60 Nb 3*(C+0.30)-1.00 |
| Yield Rp0.2(MPa) | Tensile Rm(MPa) | Impact KV/Ku (J) | Elongation A (%) | Reduction in cross section on fracture Z (%) | As-Heat-Treated Condition | Brinell hardness (HBW) |
| 168 (≥) | 185 (≥) | 13 | 44 | 44 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 221 |
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We rigorously test Stainless Steel 443 Tubing to ensure excellent quality and performance. Our products meet international standards with certifications such as ISO 9001, ASTM compliance, and traceability. Each tube is tested for durability, corrosion resistance and accuracy, providing reliability and excellent results for a variety of applications.
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Stainless Steel 443 Tubing finds extensive application in heat exchangers, condensers, water heaters, kitchen appliances, and automotive exhaust systems, thanks to its superior corrosion and oxidation resistance. Its remarkable formability makes it perfect for deep-drawn components in cookware, sinks, and food processing equipment. In the construction sector, SS 443 is favored for roofing, wall cladding, and decorative structural tubing. Additionally, it’s becoming increasingly popular in the HVAC industry for its reliability and performance in various applications.
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