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4140 4330 Mod4340 / E-43404620 Vac. / AMS 62946150 Vac. / AMS 6448AISI 9310300mMARAGING 350MARAGING 300MARAGING 250

1.4547

Standards

Mat. No.
1.4547
EU
X1CrNiMoCuN20-18-7
AISI/ASTM
-
UNS
S31254
Other
254 SMO
1.4547 is a chrome-nickel-molybdenum austenitic stainless steel grade.
1.4547 grade stainless steel, a chrome-nickel-molybdenum austenitic group, has high resistance to local corrosion such as crevice and pitting corrosion, as well as acceptable corrosion resistance in seawater. It also provides good stress corrosion cracking resistance.

Chemical Composition & Mechanical and Physical Properties

C%
?0.02
Mn%
1.00 max
P%
0.030 max
S%
0.010 max
Si%
0.70 max
Cr%
19.50-20.50
Ni%
17.50-18.50
Mo%
6.00-7.00
N%
0.18-0.25
Cu%
0.50-1.00

Application areas

In the chemical industry,
Offshore,
In sea water treatment plants,
In shipping applications.
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