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

1.4539

Standards

Mat. No.
1.4539
EU
X1NiCrMoCu25-20-5
AISI/ASTM
904L
UNS
N08904
Other
-
1.4539 is a high-alloy austenitic stainless steel that belongs to the group of stainless steels with low carbon content, copper addition, and high molybdenum content.
It has excellent corrosion resistance to sulfuric and phosphoric acid. It exhibits high resistance to localized corrosion such as crevice and pitting corrosion.

Chemical Composition & Mechanical and Physical Properties

C%
?0.02
Mn%
2.00 max
P%
0.030 max
S%
0.010 max
Si%
0.70 max
Cr%
19.00-21.00
Ni%
24.00-26.00
N%
0.15 max
Mo%
5xC
Cu%
4.00-5.00

Application areas

In refineries,
In submarine technologies,
in environments with sulfuric acid and phosphoric acid.
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