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ASTM A240/A240M S30409 vs ASTM A240/A240M S30400

Strong Match — 93.9% match based on chemical composition and mechanical property overlap.

ASTM A240/A240M S30409 (ASTM A240/A240M:2025) and ASTM A240/A240M S30400 (ASTM A240/A240M:2025) are both steel grades. Both fall under the Stainless Steel category. ASTM A240/A240M S30409 is typically used for pressure vessels and general applications (plate, sheet and strip), while ASTM A240/A240M S30400 is commonly used for pressure vessels and general applications (plate, sheet and strip). ASTM A240/A240M S30409 is defined under ASTM International, originating from United States, while ASTM A240/A240M S30400 is defined under ASTM International, originating from United States.

As per chemical composition, ASTM A240/A240M S30409 vs ASTM A240/A240M S30400 is a 90.8% match. As per mechanical properties, the match is 100%. Combined, this makes them a strong match overall at 93.9%.

Frequently Compared With ASTM A240/A240M S30409:
EN 10088-1 1.4006 GB/T 3280 06Cr19Ni10 GOST 5632 06Kh23N28 IS 1570 (Part 7) 12Cr12Ni2Mo GOST 5632 08X18H10 EN 10088-1 1.4301 EN 10088-1 1.4401 EN 10088-1 1.4845 IS 1570 (Part 7) 11Cr17Ni13W3TiH IS 1570 (Part 7) 12Cr12MoH IS 1570 (Part 7) 12Cr12MoVH ASTM A959 .-
Match Breakdown
CHEMISTRY MATCH
90.8%
MECHANICAL MATCH
100%
OVERALL
93.9%
Specifications
Property ASTM A240/A240M S30409 ASTM A240/A240M S30400
Standard ASTM A240/A240M:2025 ASTM A240/A240M:2025
Category Stainless Steel Stainless Steel
C (%) 0.04-0.10 <=0.08
Mn (%) <=2.00 <=2.00
P (%) <=0.045 <=0.045
S (%) <=0.030 <=0.030
Si (%) <=0.75 <=0.75
Cr (%) 18.0-20.0 18.0-20.0
Ni (%) 8.0-10.5 8.0-11.0
N (%) Not specified <=0.10
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 S30409 ASTM A240/A240M S30400
Tensile Strength >=515 MPa >=515 MPa
Yield Strength >=205 MPa >=205 MPa
Elongation >=40% >=40%
Hardness <=201 HB <=201 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 S30409
Pressure vessels and general applications (plate, sheet and strip)
ASTM A240/A240M S30400
Pressure vessels and general applications (plate, sheet and strip)
Key Differences
Can ASTM A240/A240M S30409 Be Substituted With ASTM A240/A240M S30400?
ASTM A240/A240M S30409 and ASTM A240/A240M S30400 overlap closely enough on chemistry and mechanical properties that ASTM A240/A240M S30400 is often considered as a substitute for ASTM A240/A240M S30409 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
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ASTM A240/A240M S30409
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ASTM A240/A240M S30400
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Frequently Asked Questions
What is the difference between ASTM A240/A240M S30409 and ASTM A240/A240M S30400?
ASTM A240/A240M S30400 specifies N which is not specified for ASTM A240/A240M S30409.
Can ASTM A240/A240M S30409 be substituted with ASTM A240/A240M S30400?
ASTM A240/A240M S30409 and ASTM A240/A240M S30400 overlap closely enough on chemistry and mechanical properties that ASTM A240/A240M S30400 is often considered as a substitute for ASTM A240/A240M S30409 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.