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EN 10088-3:2014 X2CrNbCu21 Steel: Specifications & Listings

EN 10088-3:2014 X2CrNbCu21: X2CrNbCu21: ferritic corrosion resisting stainless steel, material number 1.4621. Specified in EN 10088-3:2014.

Category: Stainless Steel
Grade Details
GradeEN 10088-3:2014 X2CrNbCu21
Standard EN 10088-3:2014
ApplicationsGeneral purposes, semi-finished products, bars, rods, wire, sections and bright products
Equivalent / Similar Grades
Grade Standard Region Live on M-EX
EN 10088-1 X2CrNbTi20 EN 10088-1:2014 Europe (CEN) No activity yet
EN 10088-1 X2CrNbCu21 EN 10088-1:2014 Europe (CEN) No activity yet
Grade ComparisonCompare With a Specific Grade →
Grade Standard Match
EN 10088-1 X2CrNbCu21 EN 10088-1:2014 Strong Match
EN 10088-1 X2CrNbCu21 EN 10088-1:2023 Strong Match
EN 10088-1 X2CrNbTi20 EN 10088-1:2014 Strong Match
EN 10088-1 X2CrNbTi20 EN 10088-1:2023 Strong Match
EN 10088-1 X2CrCuNbTiV22-1 EN 10088-1:2023 Close Alternative
EN 10088-2 X2CrNbCu21 EN 10088-2:2014 Close Alternative
ASTM A959 S44535 ASTM A959:2011 Close Alternative
ASTM A959 S43940 ASTM A959:2011 Related Material
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 N Cu Nb
<=0.030 <=1.00 <=1.00 <=0.040 <=0.015 20.0-21.5 <=0.030 0.10-1.00 <=1.00
Mechanical Properties
Tensile Strength 420-640 MPa
Yield Strength >=240 MPa
Elongation >=20%
Hardness <=200 HB
Condition Annealed (+A), conditions 1C, 1E, 1D, 1X, 1G and 2D, thickness or diameter up to 50 mm; Yield Strength is Rp0.2, Elongation is A (longitudinal), hardness for guidance only

More data from EN 10088-3:2014

From the standard
Mechanical properties by thickness or diameter 1 size range
Thickness or diameter, max (mm)Hardness HBW, max (guidance)Rp0.2 min (MPa)Rm (MPa)A min, longitudinal (%)
up to 50200240420 to 64020
Annealed, conditions 1C, 1E, 1D, 1X, 1G and 2D; for rods only the tensile strength values apply.
Source: EN 10088-3:2014, Table 10
Hot forming and annealing guideline temperatures
Hot forming temperature
1100 to 800 deg C
Cooling after hot forming
air
Heat treatment symbol
+A
Annealing temperature
850 to 950 deg C
Cooling after annealing
air
Informative guideline.
Source: EN 10088-3:2014, Table A.3

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