Duplex Stainless: 25CRW

25CRW is typically supplied as a cold-worked super duplex stainless steel suitable for high chloride and mildly sour wells with partial pressure of H2S<3 psi. The alloy is classified in MR0175/ISO15156 as a duplex stainless steel having Pitting Resistance Equivalent Number > 40. The high PREN prevents pitting corrosion in the presence of high chlorides or dissolved oxygen. It is therefore often used in seawater and water injection wells.

Corrosion Resistance

Moderate

Alloy Group

Duplex Stainless

Yield Stregth

65 - 145

Wall Tolerance

0.875

Density

0.2837

Pren

42.69 - 52.57

Element Composition

El.
Min:
Max:
C
×
0.03%
Cr
24%
26%
Ni
6%
8%
Mo
2.5%
3.5%
Cu
0.2%
0.8%
W
1.5%
2.5%
N
0.24%
0.32%
Si
×
0.8%
Fe
57%
65.56%
Mn
×
1%
P
×
0.03%
S
×
0.02%

Alloy Files

ALLOY-SERIES-25CRW-04162020.pdf
PDF
25CRW-Datasheet.pdf
PDF
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