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BS 970 (Part 1) 040A10 vs AISI 1010

Strong Match — 98.1% match based on chemical composition and mechanical property overlap.

BS 970 (Part 1) 040A10 (BS 970 (Part 1):1991) and AISI 1010 are both steel grades. Both fall under the Carbon Steel category. BS 970 (Part 1) 040A10 is typically used for used for bolts, studs, shafts, brackets, fabricated components, and general engineering parts., while AISI 1010 is commonly used for tubing, pipe, sheet, structural shapes, wire. BS 970 (Part 1) 040A10 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) 040A10 vs AISI 1010 is a 98.1% 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 98.1%.

Frequently Compared With BS 970 (Part 1) 040A10:
BS 970 (Part 3) 070M55 BS 970 (Part 1) 080A20 BS 970 (Part 1) 055M15 BS 970 (Part 1) 040A12 BS 970 (Part 1) 045M10 BS 970 (Part 1) 060A62 BS 970 (Part 1) 070A67 BS 970 (Part 1) 045A10 BS 970 (Part 1) 045M10 BS 970 (Part 3) 045M10 BS 970 (Part 1) 060A78 BS 970 (Part 1) 045A10
Match Breakdown
CHEMISTRY MATCH
98.1%
MECHANICAL MATCH
No shared data
OVERALL
98.1%
Specifications
Property BS 970 (Part 1) 040A10 AISI 1010
Standard BS 970 (Part 1):1991 AISI
Category Carbon Steel Carbon Steel
C (%) 0.08-0.13 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) 040A10 AISI 1010
Tensile Strength Not specified 340–470 MPa
Elongation Not specified ≥26%
Hardness Not specified ≤137 HB
Typical Applications
BS 970 (Part 1) 040A10
Used for bolts, studs, shafts, brackets, fabricated components, and general engineering parts.
AISI 1010
Tubing, pipe, sheet, structural shapes, wire
Key Differences
Can BS 970 (Part 1) 040A10 Be Substituted With AISI 1010?
BS 970 (Part 1) 040A10 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) 040A10 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) 040A10
Round Bar → (2 listings)
Diameter: 40–40 mm (1.57–1.57 in)
Length: 4700–5500 mm (185.04–216.54 in)
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) 040A10
2 active listings and RFQs →
AISI 1010
3 active listings and RFQs →
Frequently Asked Questions
What is the difference between BS 970 (Part 1) 040A10 and AISI 1010?
AISI 1010 specifies S, P which are not specified for BS 970 (Part 1) 040A10.
Can BS 970 (Part 1) 040A10 be substituted with AISI 1010?
BS 970 (Part 1) 040A10 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) 040A10 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.