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ASTM A240/A240M S43940 vs EN 10088-1 X3CrNb17

Close Alternative — 84.4% match based on chemical composition and mechanical property overlap.

ASTM A240/A240M S43940 (ASTM A240/A240M:2025) and EN 10088-1 X3CrNb17 (EN 10088-1:2014) are both steel grades. Both fall under the Stainless Steel category. ASTM A240/A240M S43940 is defined under ASTM International, originating from United States, while EN 10088-1 X3CrNb17 is defined under European Standard (EN), originating from Europe.

As per chemical composition, ASTM A240/A240M S43940 vs EN 10088-1 X3CrNb17 is a 84.4% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a close alternative overall at 84.4%.

Frequently Compared With ASTM A240/A240M S43940:
EN 10088-1 1.4845 GOST 5632 08X18H10 ASTM A959 .- EN 10088-1 1.4401 IS 1570 (Part 7) 11Cr17Ni13W3TiH IS 1570 (Part 7) 12Cr12MoVH IS 1570 (Part 7) 12Cr12Ni2Mo GB/T 3280 06Cr19Ni10 GOST 5632 06Kh23N28 EN 10088-1 1.4006 EN 10088-1 1.4301 IS 1570 (Part 7) 12Cr12MoH
Match Breakdown
CHEMISTRY MATCH
84.4%
MECHANICAL MATCH
No shared data
OVERALL
84.4%
Specifications
Property ASTM A240/A240M S43940 EN 10088-1 X3CrNb17
Standard ASTM A240/A240M:2025 EN 10088-1:2014
Category Stainless Steel Stainless Steel
C (%) <=0.030 <=0.05
Mn (%) <=1.00 <=1.00
P (%) <=0.040 <=0.040
S (%) <=0.015 <=0.015
Si (%) <=1.00 <=1.00
Cr (%) 17.5-18.5 16.0-18.0
Ti (%) 0.10-0.60 Not specified
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 S43940 EN 10088-1 X3CrNb17
Tensile Strength >=430 MPa Not specified
Yield Strength >=250 MPa Not specified
Elongation >=18% Not specified
Hardness <=180 HB Not specified
Condition Plate, sheet and strip; yield by 0.2 percent offset Not specified
Typical Applications
ASTM A240/A240M S43940
Pressure vessels and general applications (plate, sheet and strip)
EN 10088-1 X3CrNb17
Not documented
Key Differences
Can ASTM A240/A240M S43940 Be Substituted With EN 10088-1 X3CrNb17?
ASTM A240/A240M S43940 and EN 10088-1 X3CrNb17 are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.
On M-EX Right Now
ASTM A240/A240M S43940
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EN 10088-1 X3CrNb17
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Frequently Asked Questions
What is the difference between ASTM A240/A240M S43940 and EN 10088-1 X3CrNb17?
ASTM A240/A240M S43940 specifies Ti which is not specified for EN 10088-1 X3CrNb17.
Can ASTM A240/A240M S43940 be substituted with EN 10088-1 X3CrNb17?
ASTM A240/A240M S43940 and EN 10088-1 X3CrNb17 are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.