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ASTM A276/A276M S34800 vs ASTM A240/A240M S34809

Strong Match — 90.8% match based on chemical composition and mechanical property overlap.

ASTM A276/A276M S34800 (ASTM A276/A276M:2017) and ASTM A240/A240M S34809 (ASTM A240/A240M:2025) are both steel grades. Both fall under the Stainless Steel category. ASTM A276/A276M S34800 is typically used for stainless steel bars and shapes (hot-finished or cold-finished), while ASTM A240/A240M S34809 is commonly used for pressure vessels and general applications (plate, sheet and strip). ASTM A276/A276M S34800 is defined under ASTM International, originating from United States, while ASTM A240/A240M S34809 is defined under ASTM International, originating from United States.

As per chemical composition, ASTM A276/A276M S34800 vs ASTM A240/A240M S34809 is a 86.2% match. As per mechanical properties, the match is 100%. Combined, this makes them a strong match overall at 90.8%.

Frequently Compared With ASTM A276/A276M S34800:
GB/T 3280 06Cr19Ni10 EN 10088-1 1.4006 EN 10088-1 1.4845 GOST 5632 06Kh23N28 GOST 5632 08X18H10 IS 1570 (Part 7) 12Cr12MoVH ASTM A959 .- EN 10088-1 1.4301 EN 10088-1 1.4401 IS 1570 (Part 7) 11Cr17Ni13W3TiH IS 1570 (Part 7) 12Cr12MoH IS 1570 (Part 7) 12Cr12Ni2Mo
Match Breakdown
CHEMISTRY MATCH
86.2%
MECHANICAL MATCH
100%
OVERALL
90.8%
Specifications
Property ASTM A276/A276M S34800 ASTM A240/A240M S34809
Standard ASTM A276/A276M:2017 ASTM A240/A240M:2025
Category Stainless Steel Stainless Steel
C (%) <=0.08 0.04-0.10
Mn (%) <=2.00 <=2.00
P (%) <=0.045 <=0.045
S (%) <=0.030 <=0.030
Si (%) <=1.00 <=0.75
Cr (%) 17.0-19.0 17.0-19.0
Ni (%) 9.0-12.0 9.0-13.0
Ta (%) <=0.10 <=0.10
Co (%) <=0.20 <=0.20
Nb (%) <=1.10 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 A276/A276M S34800 ASTM A240/A240M S34809
Tensile Strength >=515 MPa >=515 MPa
Yield Strength >=205 MPa >=205 MPa
Elongation >=40% >=40%
Condition Condition A (Annealed), hot-finished, all sizes (first row printed) Plate, sheet and strip; yield by 0.2 percent offset
Hardness Not specified <=201 HB
Typical Applications
ASTM A276/A276M S34800
Stainless steel bars and shapes (hot-finished or cold-finished)
ASTM A240/A240M S34809
Pressure vessels and general applications (plate, sheet and strip)
Key Differences
Can ASTM A276/A276M S34800 Be Substituted With ASTM A240/A240M S34809?
ASTM A276/A276M S34800 and ASTM A240/A240M S34809 overlap closely enough on chemistry and mechanical properties that ASTM A240/A240M S34809 is often considered as a substitute for ASTM A276/A276M S34800 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 A276/A276M S34800
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ASTM A240/A240M S34809
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Frequently Asked Questions
What is the difference between ASTM A276/A276M S34800 and ASTM A240/A240M S34809?
ASTM A276/A276M S34800 specifies Nb which is not specified for ASTM A240/A240M S34809.
Can ASTM A276/A276M S34800 be substituted with ASTM A240/A240M S34809?
ASTM A276/A276M S34800 and ASTM A240/A240M S34809 overlap closely enough on chemistry and mechanical properties that ASTM A240/A240M S34809 is often considered as a substitute for ASTM A276/A276M S34800 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.