Post Stock Login Register

ASTM A959 S32906 vs ASTM A240/A240M S21603

Related Material — 68.1% match based on chemical composition and mechanical property overlap.

ASTM A959 S32906 (ASTM A959:2011) and ASTM A240/A240M S21603 (ASTM A240/A240M:2025) are both steel grades. Both fall under the Stainless Steel category. ASTM A959 S32906 is typically used for wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1), while ASTM A240/A240M S21603 is commonly used for pressure vessels and general applications (plate, sheet and strip). ASTM A959 S32906 is defined under ASTM International, originating from United States, while ASTM A240/A240M S21603 is defined under ASTM International, originating from United States.

As per chemical composition, ASTM A959 S32906 vs ASTM A240/A240M S21603 is a 68.1% 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 68.1%.

Frequently Compared With ASTM A959 S32906:
ASTM A959 29-4 ASTM A959 29-4-2 GOST 5632 08X18H10 ASTM A959 .- GB/T 3280 06Cr19Ni10 EN 10088-1 1.4006 EN 10088-1 1.4301 IS 1570 (Part 7) 11Cr17Ni13W3TiH GOST 5632 06Kh23N28 EN 10088-1 1.4401 EN 10088-1 1.4845 ASTM A959 29-4C
Match Breakdown
CHEMISTRY MATCH
68.1%
MECHANICAL MATCH
No shared data
OVERALL
68.1%
Specifications
Property ASTM A959 S32906 ASTM A240/A240M S21603
Standard ASTM A959:2011 ASTM A240/A240M:2025
Category Stainless Steel Stainless Steel
C (%) <=0.030 <=0.03
Cr (%) 28.0-30.0 17.5-22.0
Cu (%) <=0.80 Not specified
Mn (%) 0.80-1.50 7.50-9.00
Mo (%) 1.50-2.60 2.00-3.00
N (%) 0.30-0.40 0.25-0.50
Ni (%) 5.8-7.5 5.0-7.0
P (%) <=0.030 <=0.045
S (%) <=0.030 <=0.030
Si (%) <=0.50 <=0.75
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 S32906 ASTM A240/A240M S21603
Tensile Strength Not specified >=690 MPa
Yield Strength Not specified >=415 MPa
Elongation Not specified >=40%
Hardness Not specified <=241 HB
Condition Not specified Sheet and strip (first condition printed); yield by 0.2 percent offset
Typical Applications
ASTM A959 S32906
Wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1)
ASTM A240/A240M S21603
Pressure vessels and general applications (plate, sheet and strip)
Key Differences
Can ASTM A959 S32906 Be Substituted With ASTM A240/A240M S21603?
ASTM A959 S32906 and ASTM A240/A240M S21603 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.
On M-EX Right Now
ASTM A959 S32906
0 active listings and RFQs →
ASTM A240/A240M S21603
0 active listings and RFQs →
Frequently Asked Questions
What is the difference between ASTM A959 S32906 and ASTM A240/A240M S21603?
ASTM A959 S32906 specifies Cu which is not specified for ASTM A240/A240M S21603.
Can ASTM A959 S32906 be substituted with ASTM A240/A240M S21603?
ASTM A959 S32906 and ASTM A240/A240M S21603 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.