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ASTM A959 XM-27 vs ASTM A240/A240M S44627

Strong Match — 94.4% match based on chemical composition and mechanical property overlap.

ASTM A959 XM-27 (ASTM A959:2011) and ASTM A240/A240M S44627 (ASTM A240/A240M:2025) are both steel grades. Both fall under the Stainless Steel category. ASTM A959 XM-27 is typically used for wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1), while ASTM A240/A240M S44627 is commonly used for pressure vessels and general applications (plate, sheet and strip). ASTM A959 XM-27 is defined under ASTM International, originating from United States, while ASTM A240/A240M S44627 is defined under ASTM International, originating from United States.

As per chemical composition, ASTM A959 XM-27 vs ASTM A240/A240M S44627 is a 94.4% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a strong match overall at 94.4%.

Frequently Compared With ASTM A959 XM-27:
ASTM A959 29-4 ASTM A959 29-4-2 IS 1570 (Part 7) 12Cr12MoH GOST 5632 08X18H10 EN 10088-1 1.4006 EN 10088-1 1.4301 EN 10088-1 1.4845 IS 1570 (Part 7) 12Cr12MoVH ASTM A959 26-3-3 ASTM A959 .- EN 10088-1 1.4401 IS 1570 (Part 7) 11Cr17Ni13W3TiH
Match Breakdown
CHEMISTRY MATCH
94.4%
MECHANICAL MATCH
No shared data
OVERALL
94.4%
Specifications
Property ASTM A959 XM-27 ASTM A240/A240M S44627
Standard ASTM A959:2011 ASTM A240/A240M:2025
Category Stainless Steel Stainless Steel
C (%) <=0.010 <=0.010
Cb (%) 0.05-0.20 Not specified
Cr (%) 25.0-27.5 25.0-27.5
Cu (%) <=0.20 <=0.20
Mn (%) <=0.40 <=0.40
Mo (%) 0.75-1.50 0.75-1.50
N (%) <=0.015 <=0.015
Ni (%) <=0.50 <=0.50
P (%) <=0.020 <=0.020
S (%) <=0.020 <=0.020
Si (%) <=0.40 <=0.40
Nb (%) Not specified 0.05-0.20
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 XM-27 ASTM A240/A240M S44627
Tensile Strength Not specified >=450 MPa
Yield Strength Not specified >=275 MPa
Elongation Not specified >=22%
Hardness Not specified <=187 HB
Condition Not specified Plate, sheet and strip; yield by 0.2 percent offset
Typical Applications
ASTM A959 XM-27
Wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1)
ASTM A240/A240M S44627
Pressure vessels and general applications (plate, sheet and strip)
Key Differences
Can ASTM A959 XM-27 Be Substituted With ASTM A240/A240M S44627?
ASTM A959 XM-27 and ASTM A240/A240M S44627 overlap closely enough on chemistry and mechanical properties that ASTM A240/A240M S44627 is often considered as a substitute for ASTM A959 XM-27 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 A959 XM-27
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ASTM A240/A240M S44627
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Frequently Asked Questions
What is the difference between ASTM A959 XM-27 and ASTM A240/A240M S44627?
ASTM A959 XM-27 specifies Cb which is not specified for ASTM A240/A240M S44627. ASTM A240/A240M S44627 specifies Nb which is not specified for ASTM A959 XM-27.
Can ASTM A959 XM-27 be substituted with ASTM A240/A240M S44627?
ASTM A959 XM-27 and ASTM A240/A240M S44627 overlap closely enough on chemistry and mechanical properties that ASTM A240/A240M S44627 is often considered as a substitute for ASTM A959 XM-27 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.