UNS 31803 pipe is composed of 21% chromium,2.5% molybdenum and 4.5% nickel nitrogen alloy compound stainless steel.It has high strength, good impact toughness and good overall and local stress corrosion resistance.
Specification:
seamless pipe/tube: ASTM A789,ASTM A790
welded pipe/tube: ASTM A928
OD (outer diameter):21.3mm-406.4 or as customer required
Wall thickness: sch10,sch20,sch30,sch40,sch60,XS,sch80, sch160
Length:5.8m-12m or as customer required
Manufacture Method: Cold drawn, cold rolled, hydraulic cold drawn, Hot rolled, hot expanded
End type: Plain ends, bevelled ends, threaded ends
Surface type: Transparent oil,anti-rust oil and according to clients requirement
S31803 Chemical composition:
C | Mn | P | S | Si | Cr | Mo | N | Cu |
max | max | max | max | max | max | max | max | max |
0.03 | 2 | 0.03 | 0.02 | 1 | 21-23 | 4.5-4.6 | 2.5-3.5 | 0.08-0.2 |
S31803 Mechanical properties:
Tensile strength (Mpa) | Yield strength (Mpa) | Hardness(Brinell,HBW) |
620 | 450 | 293 |
Application:
UNS 31803 pipe has twice the yield strength of austenitic stainless steel, a feature that allows designers to reduce weight when designing products. Widely used in oil and gas industrial, marine industrial, chemical processing and nuclear industrial due to their excellent strength and good corrosion resistanceIf you require further information or you do not see what yo need in our web,please do not hesitate to contact us. Our customer service specialists will be happy to help you.info@jiade-group.com
