s31803 duplex stainless steel pipe sizes

s31803 duplex stainless steel pipe 

The S31803 duplex stainless steel is a compound stainless steel made of 21% chromium,2.5% molybdenum and 4.5% nickel nitrogen alloys.It has high strength, good impact toughness and good overall and local resistance to stress corrosion.The yield strength of the S31803 dual-phase stainless steel is twice that of the austenitic stainless steel, a feature that allows designers to reduce weight when designing products and gives the alloy a price advantage over 316,317 L.This alloy is particularly suited to - + 50 ° F / 600 ° F temperature range.Applications beyond this temperature range may also be considered for this alloy, but there are limitations, especially when applied to welded structures.

The S31803 dual-phase stainless steel has twice the compressive strength of austenitic stainless steel and is designed to reduce its weight compared to 316L and 317L.Especially suitable for 2205 alloy + 50 ° F / 600 ° F temperature range, in the case of restricted (especially for welding structure), can also be used to lower the temperature. 

s31803 duplex steel pipe Chemical composition: C ≤ 0.030, Mn ≤2.00 ,Si ≤ 1.00, p≤ 0.030 ,S ≤0.020 Cr 22.0 ~ 23.0 Ni 4.5 ~ 6.5 Mo3.0 ~ 3.5n0.14 ~ 0.20(austenite-ferrin size)

Seamless Stainless steel pipe &tubes specification / dimensions / size / standard / steel grade / material

Technique    :cold drawn
Thickness    :1-60mm
Outer Diameter    :6-760mm
Sample    sample freely
Stock or not    :enough stock
Payment terms    :L/C T/T (30%DEPOSIT)
Package    Standard Seaworthy Package
Delivery time    :7-15 dyas,or according to the order quantity or upon negotiation

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