Stainless steel

Stainless steel, known as white iron, is a generic term for an alloy steel typically containing 10%-30% of chromium in metallurgy. “Iron alloy” contains chromium content of more than 10.5% by weight. This steel is not as easily corroded as normal steel. If the chromium ratio is low,  an oxide film forms on the surface instead of oxidizing.  This steel is not stainless steel but weathering steel. Chromium with low carbon content can show significant corrosion resistance and thermal resistance, but also nickel, molybdenum, titanium, aluminum, copper, nitrogen, sulfur, phosphorus and selenium form anti-oxidant films on the steel surface to improve corrosion resistance and anti-oxidation in special environments for special performance.

US316 / 316L is added with molybdenum to create a special structure with corrosion resistance. Low carbon is more resistant to corrosion with higher heat treatment, and it is used in chemical corrosion and acid-alkali environments for chloride corrosion resistance better than 304.

SUS 303

SUS 304

SUS 316

SUS 316L 

SUS 420

SUS 440

SUS 440A

SUS 440B

SUS 440C

SUS 630 

Chong Sheng Yi Company has specialized for a long time in aluminum processing technology and high precision parts for composite grinding/lathe/milling in various areas.  Chong Sheng Yi Company welcomes you to discuss our manufacturing capacity, and the company can reverse engineer any sample for discussion.