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BS 970 EN36 vs JIS G4102 SNC415

Close Alternative — 71.8% match based on chemical composition and mechanical property overlap.

BS 970 EN36 (BS 970:1955) and JIS G4102 SNC415 (JIS G 4102:1979) are both steel grades. Both fall under the Alloy Steel category. BS 970 EN36 is typically used for case hardened gears, cams, shafts, while JIS G4102 SNC415 is commonly used for heavily loaded gears, cams, camshafts. BS 970 EN36 is defined under British Standards (BS), originating from United Kingdom, while JIS G4102 SNC415 is defined under Japanese Industrial Standards (JIS), originating from Japan.

As per chemical composition, BS 970 EN36 vs JIS G4102 SNC415 is a 82.7% match. As per mechanical properties, the match is 50%. Combined, this makes them a close alternative overall at 71.8%.

Frequently Compared With BS 970 EN36:
NF A35-565 100C6 GB/T 3077 12Cr2Ni4A GOST 4543 12HN3A UNI 11234 100Cr6 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 7) 10Cr36Mo10H IS 4367 07Cr4Mo6 IS 1570 (Part 4) 07Cr4Mo6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 10Cr20Mo6 IS 4367 10Cr9Mo10
Match Breakdown
CHEMISTRY MATCH
82.7%
MECHANICAL MATCH
50%
OVERALL
71.8%
Specifications
Property BS 970 EN36 JIS G4102 SNC415
Standard BS 970:1955 JIS G 4102:1979
Category Alloy Steel Alloy Steel
C (%) 0.14–0.20 0.12–0.18
Si (%) 0.10–0.35 0.15–0.35
Mn (%) 0.30–0.60 0.35–0.65
Cr (%) 0.60–1.10 0.60–1.00
Ni (%) 3.00–3.75 2.00–2.50
S (%) ≤0.040 ≤0.030
P (%) ≤0.035 ≤0.030
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 EN36 JIS G4102 SNC415
Tensile Strength 775–930 MPa ≥830 MPa
Yield Strength ≥585 MPa Not specified
Elongation ≥15% Not specified
Case Hardness HRC 58–62 58–62
Typical Applications
BS 970 EN36
Case hardened gears, cams, shafts
JIS G4102 SNC415
Heavily loaded gears, cams, camshafts
Can BS 970 EN36 Be Substituted With JIS G4102 SNC415?
BS 970 EN36 and JIS G4102 SNC415 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.
Forms & Sizes Available on M-EX
BS 970 EN36
Round Bar → (8 listings)
Diameter: 40–75 mm (1.57–2.95 in)
Length: 4800–6500 mm (188.98–255.91 in)
Hex Bar → (3 listings)
Across Flats: 55–55 mm (2.17–2.17 in)
Length: 2700–3500 mm (106.3–137.8 in)
Forging → (3 listings)
Diameter: 150–150 mm (5.91–5.91 in)
Length: 500–1900 mm (19.69–74.8 in)
JIS G4102 SNC415
Round Bar → (2 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 5400–6000 mm (212.6–236.22 in)
On M-EX Right Now
BS 970 EN36
14 active listings and RFQs →
JIS G4102 SNC415
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between BS 970 EN36 and JIS G4102 SNC415?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can BS 970 EN36 be substituted with JIS G4102 SNC415?
BS 970 EN36 and JIS G4102 SNC415 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.