441 Stainless Steel Strip

441 stainless steel strip is a ferritic stainless steel stabilized with titanium (Ti) and niobium (Nb). It belongs to the 400 series of high-performance stainless steels, typically designated ASTM 441 or SUS 441. Its primary composition is 17-18.5% chromium (Cr) and 0.3-0.8% molybdenum (Mo), with titanium and niobium added as stabilizing elements. Due to its unique composition, 441 stainless steel strip exhibits excellent resistance to high temperatures, corrosion, and oxidation, while also offering good formability and weldability, making it an ideal alternative to austenitic stainless steel in specific high-temperature applications. 441 stainless steel strip's most notable features are its exceptional high-temperature stability and resistance to intergranular corrosion. At high temperatures (up to 800°C), titanium and niobium effectively bind carbon and nitrogen to form stable carbonitrides, preventing chromium depletion at grain boundaries and significantly improving the material's corrosion resistance after welding and heat treatment. Furthermore, the addition of molybdenum enhances its resistance to oxidation, stress corrosion, and pitting corrosion, making it particularly suitable for use in corrosive environments containing chloride ions or in humid, high-temperature environments. Compared with common austenitic stainless steels such as 304 and 316, 441 has a ferritic structure, a lower thermal expansion coefficient, better thermal conductivity, and does not contain nickel, making it more cost-effective. It also has good resistance to stress corrosion cracking and is not easy to deform or crack under conditions of frequent thermal cycles.

441 stainless steel belt coffee machine • Corrosion resistance ensures beverage hygiene: ...

About

WuXi Huansheng Precision Alloy Materials Co., Ltd.

Founded in 2001, Wuxi Huansheng Precision Alloy Materials Co., Ltd. (formerly Wuxi Huansheng Metal Products Co., Ltd.) is a specialized manufacturer engaged in the R&D and production of cold-rolled stainless steel strips. The company has a registered capital of 60 million RMB and a plant area of approximately 45,990 square meters, with an annual production capacity of up to 72,000 tons. Product thickness ranges from 0.03 mm to 3.0 mm, with a maximum width of 650 mm.

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