1.4539 Austenitic Stainless Steel Product

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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