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BS 970 (Part 3) 945M38 vs BS 970 EN100D

Close Alternative — 82.4% match based on chemical composition and mechanical property overlap.

BS 970 (Part 3) 945M38 (BS 970 (Part 3):1991) and BS 970 EN100D (BS 970:1955) are both steel grades. Both fall under the Alloy Steel category. BS 970 (Part 3) 945M38 is defined under British Standards (BS), originating from United Kingdom, while BS 970 EN100D is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, BS 970 (Part 3) 945M38 vs BS 970 EN100D is a 82.4% 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 82.4%.

Frequently Compared With BS 970 (Part 3) 945M38:
IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 103Cr6 IS 4367 10Cr9Mo10 IS 1570 (Part 4) 10Mo6 IS 4367 07Cr4Mo6 IS 1570 (Part 4) 07Cr4Mo6 NF A35-565 100C6 UNI 11234 100Cr6 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 7) 10Cr36Mo10H IS 1570 (Part 7) 10Mo6H
Match Breakdown
CHEMISTRY MATCH
82.4%
MECHANICAL MATCH
No shared data
OVERALL
82.4%
Specifications
Property BS 970 (Part 3) 945M38 BS 970 EN100D
Standard BS 970 (Part 3):1991 BS 970:1955
Category Alloy Steel Alloy Steel
C (%) 0.34-0.42 0.40-0.45
Si (%) 0.10-0.40 0.10-0.50
Mn (%) 1.20-1.60 1.20-1.50
P (%) <=0.035 <=0.050
S (%) <=0.040 <=0.050
Cr (%) 0.40-0.60 0.30-0.60
Mo (%) 0.15-0.25 0.15-0.25
Ni (%) 0.60-0.90 0.50-1.00
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 (Part 3) 945M38 BS 970 EN100D
Tensile Strength Not specified ≥695 MPa (45 tons/sq in, converted)
Yield Strength Not specified ≥525 MPa (34 tons/sq in, converted)
Elongation Not specified ≥22%
Hardness Not specified 201-255 HB
Condition Not specified Hardened and tempered R, ruling section 6 in (lowest-strength condition of the standard)
Typical Applications
BS 970 (Part 3) 945M38
Bright cold finished bars (cold drawn, turned or precision ground) for general engineering purposes, in straight lengths; alloy direct hardening steel (Table 16)
BS 970 EN100D
Not documented
Can BS 970 (Part 3) 945M38 Be Substituted With BS 970 EN100D?
BS 970 (Part 3) 945M38 and BS 970 EN100D 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.
On M-EX Right Now
BS 970 (Part 3) 945M38
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BS 970 EN100D
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Frequently Asked Questions
What is the difference between BS 970 (Part 3) 945M38 and BS 970 EN100D?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can BS 970 (Part 3) 945M38 be substituted with BS 970 EN100D?
BS 970 (Part 3) 945M38 and BS 970 EN100D 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.