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BS 970 (Part 1) 040A12 vs AISI 1010

Strong Match — 93.2% match based on chemical composition and mechanical property overlap.

BS 970 (Part 1) 040A12 (BS 970 (Part 1):1991) and AISI 1010 are both steel grades. Both fall under the Carbon Steel category. BS 970 (Part 1) 040A12 is typically used for as-rolled, or as-rolled and softened, steel (section two), while AISI 1010 is commonly used for tubing, pipe, sheet, structural shapes, wire. BS 970 (Part 1) 040A12 is defined under British Standards (BS), originating from United Kingdom, while AISI 1010 is defined under AISI, originating from United States.

As per chemical composition, BS 970 (Part 1) 040A12 vs AISI 1010 is a 93.2% 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 93.2%.

Frequently Compared With BS 970 (Part 1) 040A12:
BS 970 (Part 1) 040A10 BS 970 (Part 1) 060A62 BS 970 (Part 3) 045M10 BS 970 (Part 1) 055M15 BS 970 (Part 1) 060A72 BS 970 (Part 1) 060A81 BS 970 (Part 1) 070A67 BS 970 (Part 1) 045A10 BS 970 (Part 1) 060A67 BS 970 (Part 1) 060A78 BS 970 (Part 3) 070M20 BS 970 (Part 3) 070M55
Match Breakdown
CHEMISTRY MATCH
93.2%
MECHANICAL MATCH
No shared data
OVERALL
93.2%
Specifications
Property BS 970 (Part 1) 040A12 AISI 1010
Standard BS 970 (Part 1):1991 AISI
Category Carbon Steel Carbon Steel
C (%) 0.10-0.15 0.08–0.13
Mn (%) 0.30-0.50 0.30–0.60
S (%) Not specified ≤0.050
P (%) Not specified ≤0.030
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 (Part 1) 040A12 AISI 1010
Tensile Strength Not specified 340–470 MPa
Elongation Not specified ≥26%
Hardness Not specified ≤137 HB
Typical Applications
BS 970 (Part 1) 040A12
As-rolled, or as-rolled and softened, steel (section two)
AISI 1010
Tubing, pipe, sheet, structural shapes, wire
Key Differences
Can BS 970 (Part 1) 040A12 Be Substituted With AISI 1010?
BS 970 (Part 1) 040A12 and AISI 1010 overlap closely enough on chemistry and mechanical properties that AISI 1010 is often considered as a substitute for BS 970 (Part 1) 040A12 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
Forms & Sizes Available on M-EX
BS 970 (Part 1) 040A12
No active listings currently.
AISI 1010
Round Bar → (3 listings)
Diameter: 40–40 mm (1.57–1.57 in)
Length: 5000–5400 mm (196.85–212.6 in)
On M-EX Right Now
BS 970 (Part 1) 040A12
0 active listings and RFQs →
AISI 1010
3 active listings and RFQs →
Frequently Asked Questions
What is the difference between BS 970 (Part 1) 040A12 and AISI 1010?
AISI 1010 specifies S, P which are not specified for BS 970 (Part 1) 040A12.
Can BS 970 (Part 1) 040A12 be substituted with AISI 1010?
BS 970 (Part 1) 040A12 and AISI 1010 overlap closely enough on chemistry and mechanical properties that AISI 1010 is often considered as a substitute for BS 970 (Part 1) 040A12 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.