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  • 2507 Stainless Steel Sheet/bar/pipe
  • 2507 Stainless Steel Sheet/bar/pipe

2507 Stainless Steel Sheet/bar/pipe

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toux Janet Chang

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Specification, Chemical & Mechanical Performance

Equivalent designations
UNS S32750
DIN W. Nr. 1.4410
Rod, bar and shape A 276, A 484
Plate, sheet and strip A 240, A 480
Seamless and welded pipe A 790, A 999
Seamless and welded tubing A 789, A 1016
Fitting A 815, A 960
Forged or rolled pipe flange and forged fitting A 182, A 961
Billet and bar for forging A 314, A 484

Chemical composition

% Fe Cr Ni Mo C Mn Si P S Cu N
min balance 24.0 6.0 3.0             0.24
max 26.0 8.0 5.0 0.030 1.20 0.80 0.035 0.020 0.50 0.32

Physical properties

Density 7.75 g/cm3
Melting range 1396-1450℃

Features: 2507 is a super duplex stainless steel with higher alloy content, thus making it superior to 2205 in corrosion resistance and strength. It has excellent resistance to uniform, pitting, crevice corrosion and chloride stress corrosion cracking. In dilute sulfuric acid contaminated with chloride ions, 2507 has better corrosion resistance than 904L, which is specially designed to resist pure sulfuric acid. Because 2507’s low carbon content greatly lowers the risk of carbide precipitation at the grain boundaries during heat treatment, it is highly resistant to carbide-related intergranular corrosion. 2507 is not suitable for which require long exposure to temperatures above 300℃ because of the increased risk of a reduction in toughness. Its yield strength is about twice that of conventional austenitic stainless steels.


Applications: Chemical processing industry piping, vessels and heat exchangers; desalination plant seawater piping; oil and gas industry equipment; power plant flue gas desulfurization systems, scrubber systems and absorber towers; and chemical tankers.