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ASTM A240/A240M S32808 vs ASTM A959 S32906

Related Material — 62.3% match based on chemical composition and mechanical property overlap.

ASTM A240/A240M S32808 (ASTM A240/A240M:2025) and ASTM A959 S32906 (ASTM A959:2011) are both steel grades. Both fall under the Stainless Steel category. ASTM A240/A240M S32808 is typically used for pressure vessels and general applications (plate, sheet and strip), while ASTM A959 S32906 is commonly used for wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1). ASTM A240/A240M S32808 is defined under ASTM International, originating from United States, while ASTM A959 S32906 is defined under ASTM International, originating from United States.

As per chemical composition, ASTM A240/A240M S32808 vs ASTM A959 S32906 is a 62.3% 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 62.3%.

Frequently Compared With ASTM A240/A240M S32808:
IS 1570 (Part 7) 12Cr12Ni2Mo IS 1570 (Part 7) 12Cr12MoVH GOST 5632 06Kh23N28 GOST 5632 08X18H10 EN 10088-1 1.4006 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 ASTM A959 .- GB/T 3280 06Cr19Ni10
Match Breakdown
CHEMISTRY MATCH
62.3%
MECHANICAL MATCH
No shared data
OVERALL
62.3%
Specifications
Property ASTM A240/A240M S32808 ASTM A959 S32906
Standard ASTM A240/A240M:2025 ASTM A959:2011
Category Stainless Steel Stainless Steel
C (%) <=0.030 <=0.030
Mn (%) <=1.10 0.80-1.50
P (%) <=0.030 <=0.030
S (%) <=0.010 <=0.030
Si (%) <=0.50 <=0.50
Cr (%) 27.0-27.9 28.0-30.0
Ni (%) 7.0-8.2 5.8-7.5
Mo (%) 0.80-1.2 1.50-2.60
N (%) 0.30-0.40 0.30-0.40
W (%) 2.10-2.50 Not specified
Cu (%) Not specified <=0.80
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 S32808 ASTM A959 S32906
Tensile Strength >=700 MPa Not specified
Yield Strength >=500 MPa Not specified
Elongation >=15% Not specified
Hardness <=310 HB Not specified
Condition Plate, sheet and strip; yield by 0.2 percent offset Not specified
Typical Applications
ASTM A240/A240M S32808
Pressure vessels and general applications (plate, sheet and strip)
ASTM A959 S32906
Wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1)
Key Differences
Can ASTM A240/A240M S32808 Be Substituted With ASTM A959 S32906?
ASTM A240/A240M S32808 and ASTM A959 S32906 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 A240/A240M S32808
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ASTM A959 S32906
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Frequently Asked Questions
What is the difference between ASTM A240/A240M S32808 and ASTM A959 S32906?
ASTM A240/A240M S32808 specifies W which is not specified for ASTM A959 S32906. ASTM A959 S32906 specifies Cu which is not specified for ASTM A240/A240M S32808.
Can ASTM A240/A240M S32808 be substituted with ASTM A959 S32906?
ASTM A240/A240M S32808 and ASTM A959 S32906 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.