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IS 6603:2024 X02Cr25Ni7Mo4CuWN Steel: Specifications & Listings

IS 6603:2024 X02Cr25Ni7Mo4CuWN: X02Cr25Ni7Mo4CuWN: austenitic-ferritic (duplex) corrosion resisting stainless steel, numerical symbol 2760. Specified in IS 6603:2024.

Category: Stainless Steel
Grade Details
GradeIS 6603:2024 X02Cr25Ni7Mo4CuWN
Standard IS 6603:2024
ApplicationsGeneral purposes, semi-finished products, bars, wire rods and bright bars
Equivalent / Similar Grades
Grade Standard Region Live on M-EX
ASTM A959 S32760 ASTM A959:2011 USA No activity yet
IS 6603 X02Cr25Ni7Mo4N IS 6603:2024 India No activity yet
EN 10088-1 X2CrNiMoCuWN25-7-4 EN 10088-1:2014 Europe (CEN) No activity yet
EN 10088-3 X2CrNiMoCuWN25-7-4 EN 10088-3:2014 Europe No activity yet
EN 10088-1 X2CrNiMoCuN25-6-3 EN 10088-1:2014 Europe (CEN) No activity yet
Grade ComparisonCompare With a Specific Grade →
Grade Standard Match
EN 10088-1 X2CrNiMoCuWN25-7-4 EN 10088-1:2014 Strong Match
EN 10088-1 X2CrNiMoCuWN25-7-4 EN 10088-1:2023 Strong Match
ASTM A959 S32760 ASTM A959:2011 Strong Match
EN 10088-3 X2CrNiMoCuWN25-7-4 EN 10088-3:2014 Strong Match
EN 10088-2 X2CrNiMoCuWN25-7-4 EN 10088-2:2014 Strong Match
IS 6603 X02Cr25Ni7Mo4N IS 6603:2024 Strong Match
EN 10088-1 X2CrNiMoCuN25-6-3 EN 10088-1:2014 Strong Match
EN 10088-1 X2CrNiMoCuN25-6-3 EN 10088-1:2023 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 Cr Mo Ni N Cu W
<=0.030 <=1.00 <=1.00 <=0.035 <=0.015 24.0-26.0 3.0-4.0 6.0-8.0 0.20-0.30 0.50-1.00 0.50-1.00
Mechanical Properties
Tensile Strength >=730 MPa
Yield Strength >=530 MPa
Elongation >=25%
Hardness <=290 HB
Condition Solution annealed, conditions 1C, 1E, 1D, 1X, 1G and 2D, thickness or diameter up to 160 mm; Tensile Strength is a minimum as printed, hardness for guidance only

More data from IS 6603:2024

From the standard
Mechanical properties by thickness or diameter 1 size range
Thickness or diameter (mm)Hardness HB (guidance)Rp0.2 min (MPa)Rm min (MPa)A min (%)KV2 min (J)
up to 16029053073025100
Solution annealed, conditions 1C, 1E, 1D, 1X, 1G and 2D; for rods only the tensile strength values apply.
Source: IS 6603:2024, Table 6
Bright bars, solution annealed 1 rows
Thickness or diameter (mm)Rp0.2 min (MPa)Rm (MPa)A5 min (%)KV2 min (J)
all sizes55075025-
Bright bars, conditions 2H, 2B, 2G or 2P; A5 valid for 5 mm and above.
Source: IS 6603:2024, Table 16
Proof strength at elevated temperature 4 temperatures
Temperature (deg C)Rp0.2 min (MPa)
100450
150420
200400
250380
Minimum values, solution annealed (+AT); for guidance only.
Source: IS 6603:2024, Table 11
Hot forming and solution annealing guideline temperatures
Hot forming temperature
1200 to 1000 deg C
Cooling after hot forming
air
Heat treatment symbol
+AT
Solution annealing temperature
1040 to 1120 deg C
Cooling after solution annealing
water
Informative guideline (Annex A).
Source: IS 6603:2024, Table 21

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