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JIS G4304:2021 SUS304LN Steel: Specifications & Listings

JIS G4304:2021 SUS304LN: SUS304LN: austenitic stainless steel, hot-rolled plate, sheet and strip. Specified in JIS G 4304:2021.

Category: Stainless Steel
Grade Details
GradeJIS G4304:2021 SUS304LN
Standard JIS G4304:2021
ApplicationsHot-rolled stainless steel plates and strips
Equivalent / Similar Grades
Grade Standard Region Live on M-EX
EN 10088-1 X2CrNiN18-7 EN 10088-1:2014 Europe (CEN) No activity yet
EN 10088-1 X2CrNiN18-10 EN 10088-1:2014 Europe (CEN) No activity yet
JIS G4305 SUS304LN JIS G4305:2012 Japan No activity yet
BS 970 (Part 3) 304S11 BS 970 (Part 3):1991 UK No activity yet
ASTM A959 304L ASTM A959:2011 USA No activity yet
ASTM A959 304LN ASTM A959:2011 USA No activity yet
ASTM A959 304LHN ASTM A959:2011 USA No activity yet
ASTM A959 S30430 ASTM A959:2011 USA No activity yet
Grade ComparisonCompare With a Specific Grade →
Grade Standard Match
JIS G4305 SUS304LN JIS G4305:2012 Strong Match
EN 10088-1 X2CrNiN18-10 EN 10088-1:2014 Strong Match
EN 10088-1 X2CrNiN18-10 EN 10088-1:2023 Strong Match
BS 970 (Part 3) 304S11 BS 970 (Part 3):1991 Strong Match
BS 970 (Part 1) 304S11 BS 970 (Part 1):1983 Strong Match
ASTM A959 304L ASTM A959:2011 Strong Match
ASTM A959 304LN ASTM A959:2011 Strong Match
ASTM A959 304LHN ASTM A959:2011 Strong Match
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Chemical Composition (%)
C Si Mn P S Ni Cr N
<=0.030 <=1.00 <=2.00 <=0.045 <=0.030 8.50-11.50 17.00-19.00 0.12-0.22
Mechanical Properties
Tensile Strength >=550 MPa
Yield Strength >=245 MPa
Elongation >=40%
Hardness <=217 HB
Condition Solution heat treated plate and strip; 0.2 percent proof strength applies only when specified by the purchaser

More data from JIS G4304:2021

From the standard
Mechanical properties, solution heat treated 3 values
0.2 percent proof strength, min
245 MPa
Tensile strength, min
550 MPa
Elongation, min
40 %
0.2 percent proof strength applies only when specified by the purchaser. 1 N/mm2 = 1 MPa.
Source: JIS G 4304:2021, Table 8
Hardness, solution heat treated 3 scales
Brinell hardness HBW, max
217
Rockwell HRBW or HRBS, max
95
Vickers hardness HV, max
220
Any one of the hardness scales applies; if not specified the manufacturer selects. HRBW is used in case of dispute.
Source: JIS G 4304:2021, Table 8
Heat treatment (example, informative) 1 settings
Solution heat treatment
1010 to 1150 deg C, rapid cooling
Annex JA is informative; temperatures are examples.
Source: JIS G 4304:2021, Table JA.1

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