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EN 10088-3 X2CrNbCu21 vs ASTM A959 S43940

Related Material — 69.9% match based on chemical composition and mechanical property overlap.

EN 10088-3 X2CrNbCu21 (EN 10088-3:2014) and ASTM A959 S43940 (ASTM A959:2011) are both steel grades. Both fall under the Stainless Steel category. EN 10088-3 X2CrNbCu21 is typically used for general purposes, semi-finished products, bars, rods, wire, sections and bright products, while ASTM A959 S43940 is commonly used for wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1). EN 10088-3 X2CrNbCu21 is defined under European Standard (EN), originating from Europe, while ASTM A959 S43940 is defined under ASTM International, originating from United States.

As per chemical composition, EN 10088-3 X2CrNbCu21 vs ASTM A959 S43940 is a 75.8% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a related material overall at 69.9%.

Frequently Compared With EN 10088-3 X2CrNbCu21:
ASTM A959 .- GB/T 3280 06Cr19Ni10 GOST 5632 06Kh23N28 GOST 5632 08X18H10 EN 10088-1 1.4006 EN 10088-1 1.4301 EN 10088-1 1.4401 EN 10088-1 1.4845 IS 1570 (Part 7) 11Cr17Ni13W3TiH IS 1570 (Part 7) 12Cr12MoH IS 1570 (Part 7) 12Cr12MoVH IS 1570 (Part 7) 12Cr12Ni2Mo
Match Breakdown
CHEMISTRY MATCH
75.8%
MECHANICAL MATCH
No shared data
OVERALL
69.9%
Specifications
Property EN 10088-3 X2CrNbCu21 ASTM A959 S43940
Standard EN 10088-3:2014 ASTM A959:2011
Category Stainless Steel Stainless Steel
C (%) <=0.030 <=0.030
Si (%) <=1.00 <=1.00
Mn (%) <=1.00 <=1.00
P (%) <=0.040 <=0.040
S (%) <=0.015 <=0.015
Cr (%) 20.0-21.5 17.5-18.5
N (%) <=0.030 Not specified
Cu (%) 0.10-1.00 Not specified
Nb (%) <=1.00 Not specified
Ti (%) Not specified 0.10-0.60
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property EN 10088-3 X2CrNbCu21 ASTM A959 S43940
Tensile Strength 420-640 MPa Not specified
Yield Strength >=240 MPa Not specified
Elongation >=20% Not specified
Hardness <=200 HB Not specified
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 Not specified
Typical Applications
EN 10088-3 X2CrNbCu21
General purposes, semi-finished products, bars, rods, wire, sections and bright products
ASTM A959 S43940
Wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1)
Key Differences
Can EN 10088-3 X2CrNbCu21 Be Substituted With ASTM A959 S43940?
EN 10088-3 X2CrNbCu21 and ASTM A959 S43940 share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.
On M-EX Right Now
EN 10088-3 X2CrNbCu21
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ASTM A959 S43940
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Frequently Asked Questions
What is the difference between EN 10088-3 X2CrNbCu21 and ASTM A959 S43940?
EN 10088-3 X2CrNbCu21 specifies N, Cu, Nb which are not specified for ASTM A959 S43940. ASTM A959 S43940 specifies Ti which is not specified for EN 10088-3 X2CrNbCu21.
Can EN 10088-3 X2CrNbCu21 be substituted with ASTM A959 S43940?
EN 10088-3 X2CrNbCu21 and ASTM A959 S43940 share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.