Post Stock Login Register

ASTM A959 633 vs ASTM A240/A240M S31651

Related Material — 65.7% match based on chemical composition and mechanical property overlap.

ASTM A959 633 (ASTM A959:2011) and ASTM A240/A240M S31651 (ASTM A240/A240M:2025) are both steel grades. Both fall under the Stainless Steel category. ASTM A959 633 is typically used for wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1), while ASTM A240/A240M S31651 is commonly used for pressure vessels and general applications (plate, sheet and strip). ASTM A959 633 is defined under ASTM International, originating from United States, while ASTM A240/A240M S31651 is defined under ASTM International, originating from United States.

As per chemical composition, ASTM A959 633 vs ASTM A240/A240M S31651 is a 65.7% 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 65.7%.

Frequently Compared With ASTM A959 633:
GOST 5632 06Kh23N28 GB/T 3280 06Cr19Ni10 GOST 5632 08X18H10 EN 10088-1 1.4401 EN 10088-1 1.4845 IS 1570 (Part 7) 12Cr12MoH IS 1570 (Part 7) 12Cr12MoVH IS 1570 (Part 7) 12Cr12Ni2Mo IS 1570 (Part 7) 12Cr13H ASTM A959 .- EN 10088-1 1.4006 EN 10088-1 1.4301
Match Breakdown
CHEMISTRY MATCH
65.7%
MECHANICAL MATCH
No shared data
OVERALL
65.7%
Specifications
Property ASTM A959 633 ASTM A240/A240M S31651
Standard ASTM A959:2011 ASTM A240/A240M:2025
Category Stainless Steel Stainless Steel
C (%) 0.07-0.11 <=0.08
Cr (%) 16.0-17.0 16.0-18.0
Mn (%) 0.50-1.25 <=2.00
Mo (%) 2.5-3.2 2.00-3.00
N (%) 0.07-0.13 0.10-0.16
Ni (%) 4.0-5.0 10.0-14.0
P (%) <=0.040 <=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 633 ASTM A240/A240M S31651
Tensile Strength Not specified >=550 MPa
Yield Strength Not specified >=240 MPa
Elongation Not specified >=35%
Hardness Not specified <=217 HB
Condition Not specified Plate, sheet and strip; yield by 0.2 percent offset
Typical Applications
ASTM A959 633
Wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1)
ASTM A240/A240M S31651
Pressure vessels and general applications (plate, sheet and strip)
Can ASTM A959 633 Be Substituted With ASTM A240/A240M S31651?
ASTM A959 633 and ASTM A240/A240M S31651 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 633
0 active listings and RFQs →
ASTM A240/A240M S31651
0 active listings and RFQs →
Frequently Asked Questions
What is the difference between ASTM A959 633 and ASTM A240/A240M S31651?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can ASTM A959 633 be substituted with ASTM A240/A240M S31651?
ASTM A959 633 and ASTM A240/A240M S31651 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.