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ASTM A959 S21500 vs ASTM A240/A240M S30926

Related Material — 64.4% match based on chemical composition and mechanical property overlap.

ASTM A959 S21500 (ASTM A959:2011) and ASTM A240/A240M S30926 (ASTM A240/A240M:2025) are both steel grades. Both fall under the Stainless Steel category. ASTM A959 S21500 is typically used for wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1), while ASTM A240/A240M S30926 is commonly used for pressure vessels and general applications (plate, sheet and strip). ASTM A959 S21500 is defined under ASTM International, originating from United States, while ASTM A240/A240M S30926 is defined under ASTM International, originating from United States.

As per chemical composition, ASTM A959 S21500 vs ASTM A240/A240M S30926 is a 64.4% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a related material overall at 64.4%.

Frequently Compared With ASTM A959 S21500:
GOST 5632 08X18H10 EN 10088-1 1.4845 ASTM A959 .- EN 10088-1 1.4301 EN 10088-1 1.4401 IS 1570 (Part 7) 11Cr17Ni13W3TiH IS 1570 (Part 7) 12Cr12MoVH IS 1570 (Part 7) 12Cr12Ni2Mo ASTM A959 16-8-2H GB/T 3280 06Cr19Ni10 GOST 5632 06Kh23N28 EN 10088-1 1.4006
Match Breakdown
CHEMISTRY MATCH
64.4%
MECHANICAL MATCH
No shared data
OVERALL
64.4%
Specifications
Property ASTM A959 S21500 ASTM A240/A240M S30926
Standard ASTM A959:2011 ASTM A240/A240M:2025
Category Stainless Steel Stainless Steel
B (%) 0.003-0.009 <=0.010
C (%) 0.06-0.15 <=0.10
Cb (%) 0.75-1.25 Not specified
Cr (%) 14.0-16.0 22.5-24.5
Mn (%) 5.5-7.0 5.0-7.0
Mo (%) 0.80-1.20 1.00-3.00
Ni (%) 9.0-11.0 9.0-11.0
P (%) <=0.045 <=0.045
S (%) <=0.030 <=0.030
Si (%) 0.2-1.0 <=1.00
V (%) 0.15-0.40 0.03-0.30
N (%) Not specified 0.40-0.60
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property ASTM A959 S21500 ASTM A240/A240M S30926
Tensile Strength Not specified >=800 MPa
Yield Strength Not specified >=400 MPa
Elongation Not specified >=35%
Condition Not specified Plate, sheet and strip; yield by 0.2 percent offset
Typical Applications
ASTM A959 S21500
Wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1)
ASTM A240/A240M S30926
Pressure vessels and general applications (plate, sheet and strip)
Key Differences
Can ASTM A959 S21500 Be Substituted With ASTM A240/A240M S30926?
ASTM A959 S21500 and ASTM A240/A240M S30926 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.
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ASTM A959 S21500
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ASTM A240/A240M S30926
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Frequently Asked Questions
What is the difference between ASTM A959 S21500 and ASTM A240/A240M S30926?
ASTM A959 S21500 specifies Cb which is not specified for ASTM A240/A240M S30926. ASTM A240/A240M S30926 specifies N which is not specified for ASTM A959 S21500.
Can ASTM A959 S21500 be substituted with ASTM A240/A240M S30926?
ASTM A959 S21500 and ASTM A240/A240M S30926 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.