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JIS G4304:2021 SUS329J3L Steel: Specifications & Listings

JIS G4304:2021 SUS329J3L: SUS329J3L: austenitic-ferritic (duplex) stainless steel, hot-rolled plate, sheet and strip. Specified in JIS G 4304:2021.

Category: Stainless Steel
Grade Details
GradeJIS G4304:2021 SUS329J3L
Standard JIS G4304:2021
ApplicationsHot-rolled stainless steel plates and strips
Equivalent / Similar Grades
Grade Standard Region Live on M-EX
ASTM A959 S31803 ASTM A959:2011 USA No activity yet
EN 10088-1 X2CrNiMoN22-5-3 EN 10088-1:2014 Europe (CEN) No activity yet
JIS G4305 SUS329J3L JIS G4305:2012 Japan No activity yet
JIS G4305 SUS329J4L JIS G4305:2012 Japan No activity yet
ASTM A959 2205 ASTM A959:2011 USA No activity yet
Grade ComparisonCompare With a Specific Grade →
Grade Standard Match
JIS G4305 SUS329J3L JIS G4305:2012 Strong Match
ASTM A959 S31803 ASTM A959:2011 Strong Match
EN 10088-1 X2CrNiMoN22-5-3 EN 10088-1:2014 Strong Match
EN 10088-1 X2CrNiMoN22-5-3 EN 10088-1:2023 Strong Match
JIS G4304 SUS329J4L JIS G4304:2021 Strong Match
JIS G4305 SUS329J4L JIS G4305:2012 Strong Match
ASTM A959 2205 ASTM A959:2011 Strong Match
ASTM A240/A240M S32506 ASTM A240/A240M:2025 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 Si Mn P S Ni Cr Mo N
<=0.030 <=1.00 <=2.00 <=0.040 <=0.030 4.50-6.50 21.00-24.00 2.50-3.50 0.08-0.20
Mechanical Properties
Tensile Strength >=620 MPa
Yield Strength >=450 MPa
Elongation >=18%
Hardness <=302 HB
Condition Solution heat treated plate and strip; 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
450 MPa
Tensile strength, min
620 MPa
Elongation, min
18 %
0.2 percent proof strength applies only when specified by the purchaser. 1 N/mm2 = 1 MPa.
Source: JIS G 4304:2021, Table 10
Hardness, solution heat treated 3 scales
Brinell hardness HBW, max
302
Rockwell HRC, max
32
Vickers hardness HV, max
320
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 10
Heat treatment (example, informative) 1 setting
Solution heat treatment
950 to 1100 deg C, rapid cooling
Annex JA is informative; temperatures are examples.
Source: JIS G 4304:2021, Table JA.2

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