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ASTM A240/A240M S31803 vs ASTM A240/A240M S32205

Close Alternative — 84.3% match based on chemical composition and mechanical property overlap.

ASTM A240/A240M S31803 (ASTM A240/A240M:2025) and ASTM A240/A240M S32205 (ASTM A240/A240M:2025) are both steel grades. Both fall under the Stainless Steel category. ASTM A240/A240M S31803 is typically used for pressure vessels and general applications (plate, sheet and strip), while ASTM A240/A240M S32205 is commonly used for pressure vessels and general applications (plate, sheet and strip). ASTM A240/A240M S31803 is defined under ASTM International, originating from United States, while ASTM A240/A240M S32205 is defined under ASTM International, originating from United States.

As per chemical composition, ASTM A240/A240M S31803 vs ASTM A240/A240M S32205 is a 88.9% match. As per mechanical properties, the match is 75%. Combined, this makes them a close alternative overall at 84.3%.

Frequently Compared With ASTM A240/A240M S31803:
GOST 5632 08X18H10 EN 10088-1 1.4006 EN 10088-1 1.4301 IS 1570 (Part 7) 12Cr12Ni2Mo ASTM A959 2205 EN 10088-1 1.4845 GOST 5632 06Kh23N28 ASTM A959 .- GB/T 3280 06Cr19Ni10 EN 10088-1 1.4401 IS 1570 (Part 7) 11Cr17Ni13W3TiH IS 1570 (Part 7) 12Cr12MoH
Match Breakdown
CHEMISTRY MATCH
88.9%
MECHANICAL MATCH
75%
OVERALL
84.3%
Specifications
Property ASTM A240/A240M S31803 ASTM A240/A240M S32205
Standard ASTM A240/A240M:2025 ASTM A240/A240M:2025
Category Stainless Steel Stainless Steel
C (%) <=0.030 <=0.030
Mn (%) <=2.00 <=2.00
P (%) <=0.030 <=0.030
S (%) <=0.020 <=0.020
Si (%) <=1.00 <=1.00
Cr (%) 21.0-23.0 22.0-23.0
Ni (%) 4.5-6.5 4.5-6.5
Mo (%) 2.5-3.5 3.0-3.5
N (%) 0.08-0.20 0.14-0.20
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 S31803 ASTM A240/A240M S32205
Tensile Strength >=620 MPa >=655 MPa
Yield Strength >=450 MPa >=450 MPa
Elongation >=25% >=25%
Hardness <=293 HB <=293 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 S31803
Pressure vessels and general applications (plate, sheet and strip)
ASTM A240/A240M S32205
Pressure vessels and general applications (plate, sheet and strip)
Can ASTM A240/A240M S31803 Be Substituted With ASTM A240/A240M S32205?
ASTM A240/A240M S31803 and ASTM A240/A240M S32205 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 S31803
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ASTM A240/A240M S32205
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Frequently Asked Questions
What is the difference between ASTM A240/A240M S31803 and ASTM A240/A240M S32205?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can ASTM A240/A240M S31803 be substituted with ASTM A240/A240M S32205?
ASTM A240/A240M S31803 and ASTM A240/A240M S32205 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.