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BS 970 EN5 vs BS 970 (Part 1) 080M30

Strong Match — 91.6% match based on chemical composition and mechanical property overlap.

BS 970 EN5 (BS 970:1955) and BS 970 (Part 1) 080M30 (BS 970 (Part 1):1983) 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) 080M30 is commonly used for through hardening steel for mechanical and allied engineering purposes; supplied in the hardened and tempered conditions of table 6.. BS 970 EN5 is defined under British Standards (BS), originating from United Kingdom, while BS 970 (Part 1) 080M30 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, BS 970 EN5 vs BS 970 (Part 1) 080M30 is a 91.6% 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 91.6%.

Frequently Compared With BS 970 EN5:
BS 970 (Part 1) 040A10 BS 970 (Part 3) 070M55 BS 970 (Part 1) 060A32 BS 970 (Part 3) 045A10 BS 970 (Part 1) 045M10 BS 970 (Part 1) 070M26 BS 970 (Part 1) 040A04 BS 970 (Part 1) 040A12 BS 970 (Part 1) 045A10 BS 970 (Part 1) 045A10 BS 970 (Part 1) 045M10 BS 970 (Part 3) 045M10
Match Breakdown
CHEMISTRY MATCH
91.6%
MECHANICAL MATCH
No shared data
OVERALL
91.6%
Specifications
Property BS 970 EN5 BS 970 (Part 1) 080M30
Standard BS 970:1955 BS 970 (Part 1):1983
Category Carbon Steel Carbon Steel
C (%) 0.25-0.35 0.26-0.34
Si (%) 0.05-0.35 Not specified
Mn (%) 0.60-1.00 0.60-1.00
S (%) <=0.060 <=0.050
P (%) <=0.060 <=0.050
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) 080M30
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) 080M30
Through hardening steel for mechanical and allied engineering purposes; supplied in the hardened and tempered conditions of Table 6.
Key Differences
Can BS 970 EN5 Be Substituted With BS 970 (Part 1) 080M30?
BS 970 EN5 and BS 970 (Part 1) 080M30 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 1) 080M30 is often considered as a substitute for BS 970 EN5 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 EN5
Square Bar → (3 listings)
Size: 25–25 mm (0.98–0.98 in)
Length: 5800–7000 mm (228.35–275.59 in)
Round Bar → (3 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 5500–6600 mm (216.54–259.84 in)
BS 970 (Part 1) 080M30
No active listings currently.
On M-EX Right Now
BS 970 EN5
6 active listings and RFQs →
BS 970 (Part 1) 080M30
0 active listings and RFQs →
Frequently Asked Questions
What is the difference between BS 970 EN5 and BS 970 (Part 1) 080M30?
BS 970 EN5 specifies Si which is not specified for BS 970 (Part 1) 080M30.
Can BS 970 EN5 be substituted with BS 970 (Part 1) 080M30?
BS 970 EN5 and BS 970 (Part 1) 080M30 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 1) 080M30 is often considered as a substitute for BS 970 EN5 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.