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BS 970 EN15B vs BS 970 EN5C

Strong Match — 85.7% match based on chemical composition and mechanical property overlap.

BS 970 EN15B (BS 970:1955) and BS 970 EN5C (BS 970:1955) are both steel grades. Both fall under the Carbon Steel category. BS 970 EN15B is typically used for bars and billets for forging; forgings and drop-forgings; bars for machining; bright bars. suitable for 40/50 (q), 45/55 (r), 50/60 (s), 55/65 (t) tons/sq in according to ruling section., while BS 970 EN5C is commonly used for mechanical properties are not part of the contractual obligations of specifications en 5a, en 5b and en 5c.. BS 970 EN15B is defined under British Standards (BS), originating from United Kingdom, while BS 970 EN5C is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, BS 970 EN15B vs BS 970 EN5C is a 85.7% 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 85.7%.

Frequently Compared With BS 970 EN15B:
BS 970 (Part 1) 040A04 BS 970 (Part 1) 040A10 BS 970 (Part 1) 040A12 BS 970 (Part 1) 045A10 BS 970 (Part 1) 045A10 BS 970 (Part 3) 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 BS 970 (Part 1) 060A40
Match Breakdown
CHEMISTRY MATCH
85.7%
MECHANICAL MATCH
No shared data
OVERALL
85.7%
Specifications
Property BS 970 EN15B BS 970 EN5C
Standard BS 970:1955 BS 970:1955
Category Carbon Steel Carbon Steel
C (%) 0.35-0.40 0.30-0.35
Si (%) 0.05-0.35 0.05-0.35
Mn (%) 1.10-1.30 0.70-0.90
S (%) <=0.060 <=0.060
P (%) <=0.060 <=0.060
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 EN15B BS 970 EN5C
Tensile Strength ≥618 MPa (40 tons/sq in, converted) Not specified
Yield Strength ≥402 MPa (26 tons/sq in, converted) Not specified
Elongation ≥20% Not specified
Hardness 179-229 HB Not specified
Condition Hardened and tempered Q, ruling section 4 in (lowest-strength condition of the standard) Not specified
Typical Applications
BS 970 EN15B
Bars and billets for forging; forgings and drop-forgings; bars for machining; bright bars. Suitable for 40/50 (Q), 45/55 (R), 50/60 (S), 55/65 (T) tons/sq in according to ruling section.
BS 970 EN5C
Mechanical properties are not part of the contractual obligations of specifications En 5A, En 5B and En 5C.
Can BS 970 EN15B Be Substituted With BS 970 EN5C?
BS 970 EN15B and BS 970 EN5C overlap closely enough on chemistry and mechanical properties that BS 970 EN5C is often considered as a substitute for BS 970 EN15B in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
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BS 970 EN15B
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BS 970 EN5C
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Frequently Asked Questions
What is the difference between BS 970 EN15B and BS 970 EN5C?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can BS 970 EN15B be substituted with BS 970 EN5C?
BS 970 EN15B and BS 970 EN5C overlap closely enough on chemistry and mechanical properties that BS 970 EN5C is often considered as a substitute for BS 970 EN15B in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.