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BS 970 EN5 vs BS 970 (Part 1) 080A20

Close Alternative — 81.9% match based on chemical composition and mechanical property overlap.

BS 970 EN5 (BS 970:1955) and BS 970 (Part 1) 080A20 (BS 970 (Part 1):1991) are both steel grades. Both fall under the Carbon Steel category. BS 970 EN5 is typically used for gears, shafts, couplings, general engineering, while BS 970 (Part 1) 080A20 is commonly used for used for nuts, bolts, hydraulic fittings, precision turned parts, sleeves, and couplings.. BS 970 EN5 is defined under British Standards (BS), originating from United Kingdom, while BS 970 (Part 1) 080A20 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, BS 970 EN5 vs BS 970 (Part 1) 080A20 is a 81.9% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a close alternative overall at 81.9%.

Frequently Compared With BS 970 EN5:
BS 970 (Part 1) 040A10 BS 970 (Part 3) 070M55 BS 970 (Part 1) 060A32 BS 970 (Part 1) 045M10 BS 970 (Part 3) 045A10 BS 970 (Part 1) 040A04 BS 970 (Part 1) 040A12 BS 970 (Part 1) 045A10 BS 970 (Part 3) 045M10 BS 970 (Part 1) 070M26 BS 970 (Part 1) 045A10 BS 970 (Part 1) 045M10
Match Breakdown
CHEMISTRY MATCH
81.9%
MECHANICAL MATCH
No shared data
OVERALL
81.9%
Specifications
Property BS 970 EN5 BS 970 (Part 1) 080A20
Standard BS 970:1955 BS 970 (Part 1):1991
Category Carbon Steel Carbon Steel
C (%) 0.25-0.35 0.18-0.23
Si (%) 0.05-0.35 Not specified
Mn (%) 0.60-1.00 0.70-0.90
S (%) <=0.060 Not specified
P (%) <=0.060 Not specified
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 EN5 BS 970 (Part 1) 080A20
Tensile Strength ≥494 MPa (32 tons/sq in, converted) Not specified
Yield Strength ≥247 MPa (16 tons/sq in, converted) Not specified
Elongation ≥25% Not specified
Hardness 143-193 HB Not specified
Condition Normalised, ruling section 2 1/2 in (lowest-strength condition of the standard) Not specified
Typical Applications
BS 970 EN5
Gears, shafts, couplings, general engineering
BS 970 (Part 1) 080A20
Used for nuts, bolts, hydraulic fittings, precision turned parts, sleeves, and couplings.
Key Differences
Can BS 970 EN5 Be Substituted With BS 970 (Part 1) 080A20?
BS 970 EN5 and BS 970 (Part 1) 080A20 are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.
Forms & Sizes Available on M-EX
BS 970 EN5
Round Bar → (3 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 5500–6600 mm (216.54–259.84 in)
Square Bar → (3 listings)
Size: 25–25 mm (0.98–0.98 in)
Length: 5800–7000 mm (228.35–275.59 in)
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)
On M-EX Right Now
BS 970 EN5
6 active listings and RFQs →
BS 970 (Part 1) 080A20
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between BS 970 EN5 and BS 970 (Part 1) 080A20?
BS 970 EN5 specifies Si, S, P which are not specified for BS 970 (Part 1) 080A20.
Can BS 970 EN5 be substituted with BS 970 (Part 1) 080A20?
BS 970 EN5 and BS 970 (Part 1) 080A20 are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.