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BS 970 EN24 vs EN 10028-2 10CrMo9-10

Minimal Match — 34.8% match based on chemical composition and mechanical property overlap.

BS 970 EN24 (BS 970:1955) and EN 10028-2 10CrMo9-10 (EN 10028-2:2017) are both steel grades. Both fall under the Alloy Steel category. BS 970 EN24 is typically used for heavy duty gears, shafts, connecting rods, while EN 10028-2 10CrMo9-10 is commonly used for flat products for pressure purposes. BS 970 EN24 is defined under British Standards (BS), originating from United Kingdom, while EN 10028-2 10CrMo9-10 is defined under European Standard (EN), originating from Europe.

As per chemical composition, BS 970 EN24 vs EN 10028-2 10CrMo9-10 is a 52.2% match. As per mechanical properties, the match is 0%. Combined, this makes them a minimal match overall at 34.8%.

Frequently Compared With BS 970 EN24:
GOST 4543 12HN3A NF A35-565 100C6 UNI 11234 100Cr6 GB/T 3077 12Cr2Ni4A IS 1570 (Part 4) 105Cr5 IS 4367 07Cr4Mo6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 7) 10Cr36Mo10H IS 1570 (Part 4) 07Cr4Mo6 IS 4367 10Cr9Mo10 IS 1570 (Part 4) 103Cr6
Match Breakdown
CHEMISTRY MATCH
52.2%
MECHANICAL MATCH
0%
OVERALL
34.8%
Specifications
Property BS 970 EN24 EN 10028-2 10CrMo9-10
Standard BS 970:1955 EN 10028-2:2017
Category Alloy Steel Alloy Steel
C (%) 0.35-0.45 0.08-0.14
Si (%) 0.10-0.35 <=0.50
Mn (%) 0.45-0.70 0.40-0.80
Ni (%) 1.30-1.80 Not specified
Cr (%) 0.90-1.40 2.00-2.50
Mo (%) 0.20-0.35 0.90-1.10
S (%) <=0.050 <=0.010
P (%) <=0.050 <=0.020
N (%) Not specified <=0.012
Cu (%) Not specified <=0.30
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 EN24 EN 10028-2 10CrMo9-10
Tensile Strength ≥772 MPa (50 tons/sq in, converted) 480-630 MPa
Yield Strength ≥587 MPa (38 tons/sq in, converted) >=310 MPa
Elongation ≥20% >=18%
Hardness 223-277 HB Not specified
Condition Hardened and tempered S, ruling section 6 in (lowest-strength condition of the standard) Usual delivery condition normalized and tempered (+NT), nominal thickness up to 16 mm; transverse direction, Yield Strength is ReH, Elongation is A
Typical Applications
BS 970 EN24
Heavy duty gears, shafts, connecting rods
EN 10028-2 10CrMo9-10
Flat products for pressure purposes
Key Differences
Can BS 970 EN24 Be Substituted With EN 10028-2 10CrMo9-10?
BS 970 EN24 and EN 10028-2 10CrMo9-10 share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.
Forms & Sizes Available on M-EX
BS 970 EN24
Round Bar → (26 listings)
Diameter: 50–130 mm (1.97–5.12 in)
Length: 4800–7000 mm (188.98–275.59 in)
Flat Bar → (6 listings)
Thickness: 25–40 mm (0.98–1.57 in)
Width: 200–200 mm (7.87–7.87 in)
Length: 2500–3900 mm (98.43–153.54 in)
Hex Bar → (4 listings)
Across Flats: 45–50 mm (1.77–1.97 in)
Length: 2500–3900 mm (98.43–153.54 in)
EN 10028-2 10CrMo9-10
No active listings currently.
On M-EX Right Now
BS 970 EN24
36 active listings and RFQs →
EN 10028-2 10CrMo9-10
0 active listings and RFQs →
Frequently Asked Questions
What is the difference between BS 970 EN24 and EN 10028-2 10CrMo9-10?
BS 970 EN24 specifies Ni which is not specified for EN 10028-2 10CrMo9-10. EN 10028-2 10CrMo9-10 specifies N, Cu which are not specified for BS 970 EN24.
Can BS 970 EN24 be substituted with EN 10028-2 10CrMo9-10?
BS 970 EN24 and EN 10028-2 10CrMo9-10 share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.