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BS 970 EN15 vs BS 970 (Part 3) 150M36

Strong Match — 97.3% match based on chemical composition and mechanical property overlap.

BS 970 EN15 (BS 970:1955) and BS 970 (Part 3) 150M36 (BS 970 (Part 3):1991) are both steel grades. Both fall under the Carbon Steel category. BS 970 EN15 is typically used for heavy duty shafts, couplings, general engineering, while BS 970 (Part 3) 150M36 is commonly used for bright cold finished bars (cold drawn, turned or precision ground) for general engineering purposes, in straight lengths; carbon and carbon manganese steel (table 13). BS 970 EN15 is defined under British Standards (BS), originating from United Kingdom, while BS 970 (Part 3) 150M36 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, BS 970 EN15 vs BS 970 (Part 3) 150M36 is a 97.3% 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 97.3%.

Frequently Compared With BS 970 EN15:
BS 970 (Part 3) 070M55 BS 970 (Part 1) 040A10 BS 970 (Part 1) 040A04 BS 970 (Part 3) 045A10 BS 970 (Part 1) 045A10 BS 970 (Part 1) 040A12 BS 970 (Part 1) 045A10 BS 970 (Part 1) 045M10 BS 970 (Part 1) 045M10 BS 970 (Part 3) 045M10 BS 970 (Part 1) 055M15 BS 970 (Part 1) 060A32
Match Breakdown
CHEMISTRY MATCH
97.3%
MECHANICAL MATCH
No shared data
OVERALL
97.3%
Specifications
Property BS 970 EN15 BS 970 (Part 3) 150M36
Standard BS 970:1955 BS 970 (Part 3):1991
Category Carbon Steel Carbon Steel
C (%) 0.30-0.40 0.32-0.40
Si (%) 0.10-0.35 0.10-0.40
Mn (%) 1.30-1.70 1.30-1.70
S (%) <=0.050 <=0.05
P (%) <=0.050 <=0.05
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 EN15 BS 970 (Part 3) 150M36
Tensile Strength ≥618 MPa (40 tons/sq in, converted) Not specified
Yield Strength ≥432 MPa (28 tons/sq in, converted) Not specified
Elongation ≥22% Not specified
Hardness 179-229 HB Not specified
Condition Hardened and tempered Q, ruling section 6 in (lowest-strength condition of the standard) Not specified
Typical Applications
BS 970 EN15
Heavy duty shafts, couplings, general engineering
BS 970 (Part 3) 150M36
Bright cold finished bars (cold drawn, turned or precision ground) for general engineering purposes, in straight lengths; carbon and carbon manganese steel (Table 13)
Can BS 970 EN15 Be Substituted With BS 970 (Part 3) 150M36?
BS 970 EN15 and BS 970 (Part 3) 150M36 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 3) 150M36 is often considered as a substitute for BS 970 EN15 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 EN15
Round Bar → (3 listings)
Diameter: 40–40 mm (1.57–1.57 in)
Length: 5500–6400 mm (216.54–251.97 in)
BS 970 (Part 3) 150M36
No active listings currently.
On M-EX Right Now
BS 970 EN15
3 active listings and RFQs →
BS 970 (Part 3) 150M36
0 active listings and RFQs →
Frequently Asked Questions
What is the difference between BS 970 EN15 and BS 970 (Part 3) 150M36?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can BS 970 EN15 be substituted with BS 970 (Part 3) 150M36?
BS 970 EN15 and BS 970 (Part 3) 150M36 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 3) 150M36 is often considered as a substitute for BS 970 EN15 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.