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BS 970 (Part 1) 080A20 vs AISI 1020

Strong Match — 94.3% match based on chemical composition and mechanical property overlap.

BS 970 (Part 1) 080A20 (BS 970 (Part 1):1991) and AISI 1020 are both steel grades. Both fall under the Carbon Steel category. BS 970 (Part 1) 080A20 is typically used for used for nuts, bolts, hydraulic fittings, precision turned parts, sleeves, and couplings., while AISI 1020 is commonly used for shafts, pins, keys, lightly stressed parts. BS 970 (Part 1) 080A20 is defined under British Standards (BS), originating from United Kingdom, while AISI 1020 is defined under AISI, originating from United States.

As per chemical composition, BS 970 (Part 1) 080A20 vs AISI 1020 is a 94.3% 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 94.3%.

Frequently Compared With BS 970 (Part 1) 080A20:
BS 970 (Part 3) 070M55 BS 970 (Part 1) 040A10 BS 970 (Part 1) 060A32 BS 970 (Part 1) 060A40 BS 970 (Part 1) 045M10 BS 970 (Part 1) 060A45 BS 970 (Part 1) 040A12 BS 970 (Part 1) 045A10 BS 970 (Part 3) 045A10 BS 970 (Part 3) 045M10 BS 970 (Part 1) 040A04 BS 970 (Part 1) 045A10
Match Breakdown
CHEMISTRY MATCH
94.3%
MECHANICAL MATCH
No shared data
OVERALL
94.3%
Specifications
Property BS 970 (Part 1) 080A20 AISI 1020
Standard BS 970 (Part 1):1991 AISI
Category Carbon Steel Carbon Steel
C (%) 0.18-0.23 0.18–0.23
Mn (%) 0.70-0.90 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) 080A20 AISI 1020
Tensile Strength Not specified 420–560 MPa
Elongation Not specified ≥23%
Hardness Not specified ≤149 HB
Typical Applications
BS 970 (Part 1) 080A20
Used for nuts, bolts, hydraulic fittings, precision turned parts, sleeves, and couplings.
AISI 1020
Shafts, pins, keys, lightly stressed parts
Key Differences
Can BS 970 (Part 1) 080A20 Be Substituted With AISI 1020?
BS 970 (Part 1) 080A20 and AISI 1020 overlap closely enough on chemistry and mechanical properties that AISI 1020 is often considered as a substitute for BS 970 (Part 1) 080A20 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) 080A20
Round Bar → (2 listings)
Diameter: 40–40 mm (1.57–1.57 in)
Length: 4800–6600 mm (188.98–259.84 in)
AISI 1020
Round Bar → (3 listings)
Diameter: 40–40 mm (1.57–1.57 in)
Length: 4700–6800 mm (185.04–267.72 in)
On M-EX Right Now
BS 970 (Part 1) 080A20
2 active listings and RFQs →
AISI 1020
3 active listings and RFQs →
Frequently Asked Questions
What is the difference between BS 970 (Part 1) 080A20 and AISI 1020?
AISI 1020 specifies S, P which are not specified for BS 970 (Part 1) 080A20.
Can BS 970 (Part 1) 080A20 be substituted with AISI 1020?
BS 970 (Part 1) 080A20 and AISI 1020 overlap closely enough on chemistry and mechanical properties that AISI 1020 is often considered as a substitute for BS 970 (Part 1) 080A20 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.