Material: 253Ma, UNS S30815 1.4835
Production standards: GB/T 14975, GB/T 14976, GB13296, GB9948, ASTM A312, A213, A269, A270, A511, A789, A790, DIN 17458,
DIN 17456, EN 10216, EN 10297, JIS G3459, JIS G3463, JIS G3448, JIS G3446
Size range: outside diameter from 6 mm to 609 mm (NPS 1/4″-24″), wall thickness 1 mm to 40 mm (SCH5S,10S,40S,80S10,20…..160,XXS)
Length: 30 meters (max.)
Technical process: cold drawing or cold rolling
Surface state: solid solution pickling surface; mechanical polishing; bright annealing
End treatment: PE (flat mouth), BE (Bevel)
Packaging: woven bag bundled / plywood box / export wooden box packaging
Remarks: Non-standard stainless steel pipe can be customized according to customer’s requirements
253MA (UNS S30815) 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 °C.
The chemical composition of 253MA is balanced, which makes the steel has the most suitable comprehensive performance in the temperature range of 850°C-1100°C, extremely high oxidation resistance, oxidation temperature up to 1150°C, and extremely high creep resistance. Capability and creep rupture strength; excellent resistance to high temperature corrosion and brush corrosion resistance in most gaseous media; high yield strength and tensile strength at high temperatures; good formability and weldability , and enough machinability.
In addition to the alloying elements chromium and nickel, the 253MA stainless steel also contains a small amount of rare earth metals, thereby significantly improving its antioxidant capacity. Nitrogen is added to improve the creep properties and make this steel completely austenite. Although the chromium and nickel contents are relatively low, such stainless steels have in many cases the same high temperature properties as highly alloyed alloy steels and nickel base alloys.
Post time: Apr-23-2018