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ASTM A959 440C vs EN 10088-3 X90CrMoV18

Close Alternative — 72.2% match based on chemical composition and mechanical property overlap.

ASTM A959 440C (ASTM A959:2011) and EN 10088-3 X90CrMoV18 (EN 10088-3:2014) are both steel grades. Both fall under the Stainless Steel category. ASTM A959 440C is typically used for wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1), while EN 10088-3 X90CrMoV18 is commonly used for general purposes, semi-finished products, bars, rods, wire, sections and bright products. ASTM A959 440C is defined under ASTM International, originating from United States, while EN 10088-3 X90CrMoV18 is defined under European Standard (EN), originating from Europe.

As per chemical composition, ASTM A959 440C vs EN 10088-3 X90CrMoV18 is a 72.2% 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 72.2%.

Frequently Compared With ASTM A959 440C:
GB/T 3280 06Cr19Ni10 ASTM A959 .- EN 10088-1 1.4301 EN 10088-1 1.4006 IS 1570 (Part 7) 12Cr12MoVH IS 1570 (Part 7) 12Cr12Ni2Mo GOST 5632 08X18H10 EN 10088-1 1.4845 IS 1570 (Part 7) 12Cr12MoH GOST 5632 06Kh23N28 EN 10088-1 1.4401 IS 1570 (Part 7) 11Cr17Ni13W3TiH
Match Breakdown
CHEMISTRY MATCH
72.2%
MECHANICAL MATCH
No shared data
OVERALL
72.2%
Specifications
Property ASTM A959 440C EN 10088-3 X90CrMoV18
Standard ASTM A959:2011 EN 10088-3:2014
Category Stainless Steel Stainless Steel
C (%) 0.95-1.20 0.85-0.95
Cr (%) 16.0-18.0 17.0-19.0
Mn (%) <=1.00 <=1.00
Mo (%) <=0.75 0.90-1.30
P (%) <=0.040 <=0.040
S (%) <=0.030 <=0.030
Si (%) <=1.00 <=1.00
V (%) Not specified 0.07-0.12
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property ASTM A959 440C EN 10088-3 X90CrMoV18
Hardness Not specified <=265 HB
Condition Not specified Annealed (+A), conditions 1C, 1E, 1D, 1X, 1G and 2D, thickness or diameter up to 100 mm; hardness for guidance only
Typical Applications
ASTM A959 440C
Wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1)
EN 10088-3 X90CrMoV18
General purposes, semi-finished products, bars, rods, wire, sections and bright products
Key Differences
Can ASTM A959 440C Be Substituted With EN 10088-3 X90CrMoV18?
ASTM A959 440C and EN 10088-3 X90CrMoV18 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.
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ASTM A959 440C
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EN 10088-3 X90CrMoV18
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Frequently Asked Questions
What is the difference between ASTM A959 440C and EN 10088-3 X90CrMoV18?
EN 10088-3 X90CrMoV18 specifies V which is not specified for ASTM A959 440C.
Can ASTM A959 440C be substituted with EN 10088-3 X90CrMoV18?
ASTM A959 440C and EN 10088-3 X90CrMoV18 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.