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Brief introduction:
Alloy 904L (UNS N08904) is a super austenitic stainless steel with 25% nickel and 4.5% molybdenum.
Alloy 904L provides good chloride stress corrosion cracking resistance, pitting and general corrosion resistance superior to 316L and 317L molybdenum enhanced stainless steels.
It is non-magnetic in all conditions and has excellent weldability and formability. The austenitic structure also gives this grade excellent toughness, even down to cryogenic temperatures.
It's suitable for pollution control, chemical processing, metallurgical processing, oil and gas production, pharmaceutical industry, pulp and paper, seawater and brakish water industry.
Main specifications:
Common name UNS W.Nr 904L N08094 1.4539 Chemical composition under ASTM A240 standard:
chemical composition,% Grade Ni Cr Mo Mn Cu Si C P S Fe UNS N08904 23.0-28.0 19.0-23.0 4.0-5.0 ≤2.0 1.0-2.0 ≤1.0 ≤0.02 ≤0.045 ≤0.035 Bal. Main product types:
wire,rod, bar,strip,sheet/plate,tube/pipe,flanges, etc.
Main produce standards:
Wire, rod, Bar, forging Sheet/plate,Strip pipe,flange,fitting,valve ASTM A276
ASTM A479
ASTM A473
EN 10088-3ASME SA625
ASME SA240
ASTM A240
EN 10088-2ASTM A269/A213/A312
NFA 49-217
EN 10216-5
ASTM A182
