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BS 970 EN56A vs ASTM A959 .-

Minimal Match — 35% match based on chemical composition and mechanical property overlap.

BS 970 EN56A (BS 970:1955) and ASTM A959 .- (ASTM A959:2011) are both steel grades. Both fall under the Stainless Steel category. BS 970 EN56A is defined under British Standards (BS), originating from United Kingdom, while ASTM A959 .- is defined under ASTM International, originating from United States.

As per chemical composition, BS 970 EN56A vs ASTM A959 .- is a 72.2% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a minimal match overall at 35%.

Frequently Compared With BS 970 EN56A:
GB/T 3280 06Cr19Ni10 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 IS 1570 (Part 7) 12Cr12MoVH IS 1570 (Part 7) 12Cr12Ni2Mo IS 1570 (Part 7) 12Cr13H
Match Breakdown
CHEMISTRY MATCH
72.2%
MECHANICAL MATCH
No shared data
OVERALL
35%
Specifications
Property BS 970 EN56A ASTM A959 .-
Standard BS 970:1955 ASTM A959:2011
Category Stainless Steel Stainless Steel
C (%) <=0.12 <=0.030
Si (%) <=1.00 <=1.00
Mn (%) <=1.00 <=1.00
Ni (%) <=1.00 <=0.50
Cr (%) 12.0-14.0 18.0-20.0
S (%) <=0.045 <=0.030
P (%) <=0.045 <=0.040
Cb (%) Not specified 0.10-0.60
N (%) Not specified <=0.030
Ti (%) Not specified 0.07-0.30
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property BS 970 EN56A ASTM A959 .-
Tensile Strength ≥541 MPa (35 tons/sq in, converted) Not specified
Yield Strength ≥386 MPa (25 tons/sq in, converted) Not specified
Elongation ≥25% Not specified
Hardness 152-207 HB Not specified
Condition Hardened and tempered P (ruling 6), ruling section 6 in (lowest-strength condition of the standard) Not specified
Typical Applications
BS 970 EN56A
Not documented
ASTM A959 .-
Wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1)
Key Differences
Can BS 970 EN56A Be Substituted With ASTM A959 .-?
BS 970 EN56A and ASTM A959 .- 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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BS 970 EN56A
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ASTM A959 .-
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Frequently Asked Questions
What is the difference between BS 970 EN56A and ASTM A959 .-?
ASTM A959 .- specifies Cb, N, Ti which are not specified for BS 970 EN56A.
Can BS 970 EN56A be substituted with ASTM A959 .-?
BS 970 EN56A and ASTM A959 .- 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.