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ASTM A240/A240M:2025 N08904 Steel: Specifications & Listings

ASTM A240/A240M:2025 N08904: N08904 (type 904L): austenitic (chromium-nickel or chromium-manganese-nickel) stainless steel plate, sheet and strip (UNS N08904). Specified in ASTM A240/A240M:2025.

Category: Stainless Steel
Grade Details
GradeASTM A240/A240M:2025 N08904
Standard ASTM A240/A240M:2025
ApplicationsPressure vessels and general applications (plate, sheet and strip)
Equivalent / Similar Grades
Grade Standard Region Live on M-EX
ASTM A959 904L ASTM A959:2011 USA No activity yet
ASTM A276/A276M N08904 ASTM A276/A276M:2017 USA No activity yet
Grade ComparisonCompare With a Specific Grade →
Grade Standard Match
ASTM A276/A276M N08904 ASTM A276/A276M:2017 Strong Match
ASTM A959 904L ASTM A959:2011 Strong Match
EN 10088-1 X1NiCrMoCu25-20-5 EN 10088-1:2014 Close Alternative
EN 10088-1 X1NiCrMoCu25-20-5 EN 10088-1:2023 Close Alternative
ASTM A959 N08700 ASTM A959:2011 Close Alternative
JIS G4304 SUS890L JIS G4304:2021 Close Alternative
JIS G4305 SUS890L JIS G4305:2012 Close Alternative
IS 6603 X01Ni25Cr20Mo5Cu IS 6603:2024 Close Alternative
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Chemical Composition (%)
C Mn P S Si Cr Ni Mo N Cu
<=0.020 <=2.00 <=0.045 <=0.035 <=1.00 19.0-23.0 23.0-28.0 4.00-5.00 <=0.10 1.00-2.00
Mechanical Properties
Tensile Strength >=490 MPa
Yield Strength >=220 MPa
Elongation >=35%
Hardness <=90 HRBW
Condition Plate, sheet and strip; yield by 0.2 percent offset

More data from ASTM A240/A240M:2025

From the standard
Mechanical properties 1 condition(s)
Product or thicknessTensile strength, min (MPa)Yield strength, min (MPa)Elongation in 50 mm, min (%)
All49022035
Minimum values; yield strength by the 0.2 percent offset method.
Source: ASTM A240/A240M:2025, Table 2
Hardness 1 condition(s)
Product or thicknessBrinell HBW, maxRockwell, max
All-90 HRBW
Maximum values; either Brinell or Rockwell scale may be used.
Source: ASTM A240/A240M:2025, Table 2
Cold bend 1 value
Cold bend angle
not required
Bend tests are not required for chromium steels thicker than 1 in. [25 mm] or for any austenitic or duplex steel regardless of thickness.
Source: ASTM A240/A240M:2025, Table 2

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