Harsh Metalloys is a trusted manufacturer and supplier of Stainless Steel 443 Tubing in Mumbai, India, offering cost-effective and high-performance tubing solutions for diverse industrial applications. Stainless Steel 443 is a ferritic stainless steel developed as a chromium-rich alternative to austenitic grades like SS 304, delivering superior corrosion resistance, thermal conductivity, and formability. SS 443 tubing is well-suited for use in environments involving moisture, heat, and mild corrosive conditions. At Harsh Metalloys, we supply Stainless Steel 443 tubes in seamless and welded forms, available in various sizes and wall thicknesses, meeting both domestic and international standards.
Stainless Steel 443 Tubing primarily consists of 21–23% chromium, low carbon, and small additions of titanium and niobium for improved weldability and corrosion resistance. This composition ensures excellent resistance to intergranular corrosion and stress corrosion cracking. Mechanical properties include a tensile strength of approximately 450–550 MPa and good ductility and toughness. The material exhibits excellent thermal conductivity and oxidation resistance, making it suitable for heat exchangers and HVAC systems. Harsh Metalloys ensures dimensional precision, clean surface finishes, and strict quality control in every batch of 443 tubing we supply.
| 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.
This tubing offers excellent corrosion resistance and is available in sizes ranging from 1/8″ to 24″ in diameter. It’s ideal for high-pressure applications due to its seamless construction, ensuring uniform strength throughout.
Known for its superior corrosion resistance, this tubing comes in sizes from 1/8″ to 36″ in diameter. The welded joints are precisely crafted, making it suitable for various structural and fluid transport applications.
With sizes ranging from 1/8″ to 24″ in diameter, this tubing is designed to withstand high temperatures and corrosive environments. It’s commonly used in heat exchangers due to its excellent thermal conductivity and corrosion resistance.
Available in sizes from 1/8″ to 2″ in diameter, this tubing is ideal for precision instruments. It offers excellent corrosion resistance and is designed for high-pressure and high-purity applications.
These tubes are available in sizes from 1/2″ to 5″ in diameter and are specifically designed to withstand high-pressure and high-temperature conditions. They provide excellent corrosion resistance, making them suitable for boiler applications.
Offering excellent corrosion resistance, these tubes are available in various sizes and are bent into U shapes for use in heat exchangers. The precision bending ensures efficient heat transfer and minimal stress points.
This tubing comes in sizes from 1/4″ to 3″ in diameter and is designed for use in condensers. It provides excellent corrosion resistance and thermal conductivity, making it ideal for heat exchange processes.
These tubes, available in sizes from 1/4″ to 2″ in diameter, have fins attached to increase surface area for better heat transfer. They offer superior corrosion resistance and are used in various heat exchanger applications.
Stainless Steel 443 Tubing is widely used in industries such as automotive exhaust systems, kitchen appliances, heat exchangers, architectural cladding, and air-conditioning systems. Its excellent formability and corrosion resistance make it a suitable replacement for SS 304 in cost-sensitive applications. The tubing performs reliably in moderate corrosive and elevated temperature environments, especially where welding and fabrication are necessary. Harsh Metalloys provides SS 443 tubes with excellent surface finish, tight dimensional tolerances, and high structural integrity, ensuring superior performance in both commercial and industrial systems. Our tubing solutions are ideal for applications requiring durability, aesthetics, and cost efficiency.
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