Post Stock Login Register

BS 970 EN36 vs BS 970 EN36A

Close Alternative — 77.9% match based on chemical composition and mechanical property overlap.

BS 970 EN36 (BS 970:1955) and BS 970 EN36A (BS 970:1955) are both steel grades. Both fall under the Alloy Steel category. BS 970 EN36 is typically used for case hardened gears, cams, shafts, while BS 970 EN36A is commonly used for bars and billets for forging; forgings and drop-forgings; bars for machining; bright bars. suitable for tensile strengths of 55 (en 36a) and 65 (en 36b, en 36c) tons/sq in min.. BS 970 EN36 is defined under British Standards (BS), originating from United Kingdom, while BS 970 EN36A is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, BS 970 EN36 vs BS 970 EN36A is a 91.9% match. As per mechanical properties, the match is 50%. Combined, this makes them a close alternative overall at 77.9%.

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
91.9%
MECHANICAL MATCH
50%
OVERALL
77.9%
Specifications
Property BS 970 EN36 BS 970 EN36A
Standard BS 970:1955 BS 970:1955
Category Alloy Steel Alloy Steel
C (%) 0.14–0.20 <=0.15
Si (%) 0.10–0.35 0.10-0.35
Mn (%) 0.30–0.60 0.30-0.60
Cr (%) 0.60–1.10 0.60-1.10
Ni (%) 3.00–3.75 3.00-3.75
S (%) ≤0.040 <=0.050
P (%) ≤0.035 <=0.050
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 BS 970 EN36A
Tensile Strength 775–930 MPa ≥849 MPa (55 tons/sq in, converted)
Yield Strength ≥585 MPa Not specified
Elongation ≥15% ≥15%
Case Hardness HRC 58–62 Not specified
Condition Not specified Core, after heat treatment (lowest-strength condition of the standard)
Typical Applications
BS 970 EN36
Case hardened gears, cams, shafts
BS 970 EN36A
Bars and billets for forging; forgings and drop-forgings; bars for machining; bright bars. Suitable for tensile strengths of 55 (En 36A) and 65 (En 36B, En 36C) tons/sq in min.
Can BS 970 EN36 Be Substituted With BS 970 EN36A?
BS 970 EN36 and BS 970 EN36A 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)
BS 970 EN36A
No active listings currently.
On M-EX Right Now
BS 970 EN36
14 active listings and RFQs →
BS 970 EN36A
0 active listings and RFQs →
Frequently Asked Questions
What is the difference between BS 970 EN36 and BS 970 EN36A?
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 BS 970 EN36A?
BS 970 EN36 and BS 970 EN36A 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.