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ASTM A240/A240M S20400 vs EN 10088-1 1.4401

Minimal Match — 35% match based on chemical composition and mechanical property overlap.

ASTM A240/A240M S20400 (ASTM A240/A240M:2025) and EN 10088-1 1.4401 (EN 10088-1:2014) are both steel grades. Both fall under the Stainless Steel category. ASTM A240/A240M S20400 is typically used for pressure vessels and general applications (plate, sheet and strip), while EN 10088-1 1.4401 is commonly used for marine, chemical processing, pharmaceutical equipment. ASTM A240/A240M S20400 is defined under ASTM International, originating from United States, while EN 10088-1 1.4401 is defined under European Standard (EN), originating from Europe.

As per chemical composition, ASTM A240/A240M S20400 vs EN 10088-1 1.4401 is a 54.8% match. As per mechanical properties, the match is 0%. Combined, this makes them a minimal match overall at 35%.

Frequently Compared With ASTM A240/A240M S20400:
IS 1570 (Part 7) 12Cr12MoVH ASTM A959 .- GOST 5632 08X18H10 EN 10088-1 1.4006 EN 10088-1 1.4301 EN 10088-1 1.4845 IS 1570 (Part 7) 12Cr12Ni2Mo ASTM A959 201L IS 1570 (Part 7) 12Cr12MoH GOST 5632 06Kh23N28 IS 1570 (Part 7) 11Cr17Ni13W3TiH ASTM A959 201LN
Match Breakdown
CHEMISTRY MATCH
54.8%
MECHANICAL MATCH
0%
OVERALL
35%
Specifications
Property ASTM A240/A240M S20400 EN 10088-1 1.4401
Standard ASTM A240/A240M:2025 EN 10088-1:2014
Category Stainless Steel Stainless Steel
C (%) <=0.030 ≤0.07
Mn (%) 7.00-9.00 ≤2.00
P (%) <=0.040 Not specified
S (%) <=0.030 Not specified
Si (%) <=1.00 ≤1.00
Cr (%) 15.0-17.0 16.5–18.5
Ni (%) 1.50-3.00 10.5–13.5
N (%) 0.15-0.30 Not specified
Mo (%) Not specified 2.0–2.5
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 S20400 EN 10088-1 1.4401
Tensile Strength >=655 MPa ≥520 MPa
Yield Strength >=330 MPa ≥210 MPa
Elongation >=35% ≥40%
Hardness <=241 HB ≤215 HB
Condition Plate, sheet and strip; yield by 0.2 percent offset Not specified
Typical Applications
ASTM A240/A240M S20400
Pressure vessels and general applications (plate, sheet and strip)
EN 10088-1 1.4401
Marine, chemical processing, pharmaceutical equipment
Key Differences
Can ASTM A240/A240M S20400 Be Substituted With EN 10088-1 1.4401?
ASTM A240/A240M S20400 and EN 10088-1 1.4401 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.
Forms & Sizes Available on M-EX
ASTM A240/A240M S20400
No active listings currently.
EN 10088-1 1.4401
Sheet → (4 listings)
Thickness: 6–6 mm (0.24–0.24 in)
Width: 1250–1250 mm (49.21–49.21 in)
Length: 2500–3400 mm (98.43–133.86 in)
On M-EX Right Now
ASTM A240/A240M S20400
0 active listings and RFQs →
EN 10088-1 1.4401
4 active listings and RFQs →
Frequently Asked Questions
What is the difference between ASTM A240/A240M S20400 and EN 10088-1 1.4401?
ASTM A240/A240M S20400 specifies P, S, N which are not specified for EN 10088-1 1.4401. EN 10088-1 1.4401 specifies Mo which is not specified for ASTM A240/A240M S20400.
Can ASTM A240/A240M S20400 be substituted with EN 10088-1 1.4401?
ASTM A240/A240M S20400 and EN 10088-1 1.4401 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.