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ASTM A240/A240M S20431 vs ASTM A240/A240M S20200

Close Alternative — 74.7% match based on chemical composition and mechanical property overlap.

ASTM A240/A240M S20431 (ASTM A240/A240M:2025) and ASTM A240/A240M S20200 (ASTM A240/A240M:2025) are both steel grades. Both fall under the Stainless Steel category. ASTM A240/A240M S20431 is typically used for pressure vessels and general applications (plate, sheet and strip), while ASTM A240/A240M S20200 is commonly used for pressure vessels and general applications (plate, sheet and strip). ASTM A240/A240M S20431 is defined under ASTM International, originating from United States, while ASTM A240/A240M S20200 is defined under ASTM International, originating from United States.

As per chemical composition, ASTM A240/A240M S20431 vs ASTM A240/A240M S20200 is a 74.6% match. As per mechanical properties, the match is 75%. Combined, this makes them a close alternative overall at 74.7%.

Frequently Compared With ASTM A240/A240M S20431:
EN 10088-1 1.4006 EN 10088-1 1.4401 IS 1570 (Part 7) 12Cr12MoH IS 1570 (Part 7) 12Cr12Ni2Mo EN 10088-1 1.4301 GOST 5632 08X18H10 EN 10088-1 1.4845 IS 1570 (Part 7) 11Cr17Ni13W3TiH ASTM A959 201 ASTM A959 .- GB/T 3280 06Cr19Ni10 GOST 5632 06Kh23N28
Match Breakdown
CHEMISTRY MATCH
74.6%
MECHANICAL MATCH
75%
OVERALL
74.7%
Specifications
Property ASTM A240/A240M S20431 ASTM A240/A240M S20200
Standard ASTM A240/A240M:2025 ASTM A240/A240M:2025
Category Stainless Steel Stainless Steel
C (%) <=0.12 <=0.15
Mn (%) 5.00-7.00 7.50-10.00
P (%) <=0.045 <=0.060
S (%) <=0.030 <=0.030
Si (%) <=1.00 <=1.00
Cr (%) 17.0-18.0 17.0-19.0
Ni (%) 2.0-4.0 4.0-6.0
N (%) 0.10-0.25 <=0.25
Cu (%) 1.50-3.50 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 S20431 ASTM A240/A240M S20200
Tensile Strength >=620 MPa >=620 MPa
Yield Strength >=310 MPa >=260 MPa
Elongation >=40% >=40%
Hardness <=241 HB <=241 HB
Condition Plate, sheet and strip; yield by 0.2 percent offset Plate, sheet and strip; yield by 0.2 percent offset
Typical Applications
ASTM A240/A240M S20431
Pressure vessels and general applications (plate, sheet and strip)
ASTM A240/A240M S20200
Pressure vessels and general applications (plate, sheet and strip)
Key Differences
Can ASTM A240/A240M S20431 Be Substituted With ASTM A240/A240M S20200?
ASTM A240/A240M S20431 and ASTM A240/A240M S20200 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 A240/A240M S20431
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ASTM A240/A240M S20200
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Frequently Asked Questions
What is the difference between ASTM A240/A240M S20431 and ASTM A240/A240M S20200?
ASTM A240/A240M S20431 specifies Cu which is not specified for ASTM A240/A240M S20200.
Can ASTM A240/A240M S20431 be substituted with ASTM A240/A240M S20200?
ASTM A240/A240M S20431 and ASTM A240/A240M S20200 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.