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BS 970 EN3D vs EN 10084 C16E

Strong Match — 88.2% match based on chemical composition and mechanical property overlap.

BS 970 EN3D (BS 970:1955) and EN 10084 C16E (EN 10084:2008) are both steel grades. Both fall under the Carbon Steel category. BS 970 EN3D is typically used for bright bars for machining, while EN 10084 C16E is commonly used for case hardened machine parts: carburized or carbonitrided, then hardened (clause 3.1). BS 970 EN3D is defined under British Standards (BS), originating from United Kingdom, while EN 10084 C16E is defined under European Standard (EN), originating from Europe.

As per chemical composition, BS 970 EN3D vs EN 10084 C16E is a 88.2% 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 88.2%.

Frequently Compared With BS 970 EN3D:
BS 970 (Part 3) 070M20 BS 970 (Part 1) 040A12 BS 970 (Part 1) 040A10 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) 070M20 BS 970 (Part 1) 040A04 BS 970 (Part 1) 055M15
Match Breakdown
CHEMISTRY MATCH
88.2%
MECHANICAL MATCH
No shared data
OVERALL
88.2%
Specifications
Property BS 970 EN3D EN 10084 C16E
Standard BS 970:1955 EN 10084:2008
Category Carbon Steel Carbon Steel
C (%) 0.15-0.25 0.12-0.18
Si (%) 0.05-0.35 <=0.40
Mn (%) 0.60-1.00 0.60-0.90
S (%) <=0.060 <=0.035
P (%) <=0.060 <=0.035
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 EN3D EN 10084 C16E
Tensile Strength ≥432 MPa (28 tons/sq in, converted) Not specified
Elongation ≥15% Not specified
Condition size (diameter or width across flats) Over 2 1/2 in (lowest-strength condition of the standard) Soft annealed
Hardness Not specified Soft annealed: 156 HB max
Typical Applications
BS 970 EN3D
Bright bars for machining
EN 10084 C16E
Case hardened machine parts: carburized or carbonitrided, then hardened (clause 3.1)
Can BS 970 EN3D Be Substituted With EN 10084 C16E?
BS 970 EN3D and EN 10084 C16E overlap closely enough on chemistry and mechanical properties that EN 10084 C16E is often considered as a substitute for BS 970 EN3D 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 EN3D
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EN 10084 C16E
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Frequently Asked Questions
What is the difference between BS 970 EN3D and EN 10084 C16E?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can BS 970 EN3D be substituted with EN 10084 C16E?
BS 970 EN3D and EN 10084 C16E overlap closely enough on chemistry and mechanical properties that EN 10084 C16E is often considered as a substitute for BS 970 EN3D in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.