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ASTM A240/A240M S44330 vs EN 10088-1 X2CrNbCu21

Strong Match — 85.3% match based on chemical composition and mechanical property overlap.

ASTM A240/A240M S44330 (ASTM A240/A240M:2025) and EN 10088-1 X2CrNbCu21 (EN 10088-1:2023) are both steel grades. Both fall under the Stainless Steel category. ASTM A240/A240M S44330 is defined under ASTM International, originating from United States, while EN 10088-1 X2CrNbCu21 is defined under European Standard (EN), originating from Europe.

As per chemical composition, ASTM A240/A240M S44330 vs EN 10088-1 X2CrNbCu21 is a 85.3% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a strong match overall at 85.3%.

Frequently Compared With ASTM A240/A240M S44330:
GOST 5632 08X18H10 GB/T 3280 06Cr19Ni10 GOST 5632 06Kh23N28 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 ASTM A959 .-
Match Breakdown
CHEMISTRY MATCH
85.3%
MECHANICAL MATCH
No shared data
OVERALL
85.3%
Specifications
Property ASTM A240/A240M S44330 EN 10088-1 X2CrNbCu21
Standard ASTM A240/A240M:2025 EN 10088-1:2023
Category Stainless Steel Stainless Steel
C (%) <=0.025 <=0.030
Mn (%) <=1.00 <=1.00
P (%) <=0.040 <=0.040
S (%) <=0.030 <=0.015
Si (%) <=1.00 <=1.00
Cr (%) 20.0-23.0 20.0-21.5
N (%) <=0.025 <=0.030
Cu (%) 0.30-0.80 0.10-1.00
Nb (%) Not specified 0.20-1.00
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property ASTM A240/A240M S44330 EN 10088-1 X2CrNbCu21
Tensile Strength >=390 MPa Not specified
Yield Strength >=205 MPa Not specified
Elongation >=22% Not specified
Hardness <=187 HB Not specified
Condition Plate, sheet and strip; yield by 0.2 percent offset Not specified
Typical Applications
ASTM A240/A240M S44330
Pressure vessels and general applications (plate, sheet and strip)
EN 10088-1 X2CrNbCu21
Not documented
Key Differences
Can ASTM A240/A240M S44330 Be Substituted With EN 10088-1 X2CrNbCu21?
ASTM A240/A240M S44330 and EN 10088-1 X2CrNbCu21 overlap closely enough on chemistry and mechanical properties that EN 10088-1 X2CrNbCu21 is often considered as a substitute for ASTM A240/A240M S44330 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
On M-EX Right Now
ASTM A240/A240M S44330
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EN 10088-1 X2CrNbCu21
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Frequently Asked Questions
What is the difference between ASTM A240/A240M S44330 and EN 10088-1 X2CrNbCu21?
EN 10088-1 X2CrNbCu21 specifies Nb which is not specified for ASTM A240/A240M S44330.
Can ASTM A240/A240M S44330 be substituted with EN 10088-1 X2CrNbCu21?
ASTM A240/A240M S44330 and EN 10088-1 X2CrNbCu21 overlap closely enough on chemistry and mechanical properties that EN 10088-1 X2CrNbCu21 is often considered as a substitute for ASTM A240/A240M S44330 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.