Heat resistant steel is commonly used in the manufacture of boilers, steam turbines, industrial furnaces, aviation, petrochemical and other industrial sectors in the high-temperature operation of parts.
309S :(0Cr23Ni13)
Characteristics: can withstand repeated heating below 980 ℃, with high high temperature strength and anti-oxidation, anti-carburizing performance.
Purpose: Furnace material.
310S :(0Cr25Ni20)
Features: suitable for making various furnace components, the highest temperature 1200 ℃, continuous temperature 1150 ℃.
Application: furnace material, automobile purification device material.
253 ma:
Features: Avesta Sheffield AB's 253MA is a heat-resistant Austenitic stainless steel, Designed for applications requiring high creep strength and good corrosion resistance. Its operating temperature range is 850-1100 ℃.
Usage: In addition to alloying elements chromium and nickel, this grade of stainless steel also contains a small amount of Rare Earth Metals (REM), thus significantly improving its oxidation resistance. Nitrogen was added to improve creep properties and make the steel complete austenite. Despite the relatively low chromium and nickel content, this stainless steel has in many cases the same high temperature properties as highly alloyed alloy steels and nickel-based alloys.