BS 970 EN363 vs BS 970 EN353

Close Alternative — 81.7% match based on chemical composition and mechanical property overlap.

BS 970 EN363 (BS 970:1955) and BS 970 EN353 (BS 970:1955) are both steel grades. Both fall under the Alloy Steel category. BS 970 EN363 is typically used for bars and billets for forging; forgings and drop-forgings; bars for machining; bright bars. suitable for tensile strength 65 tons/sq in min. supplied on tensile strength only or, by special arrangement, on analysis only., while BS 970 EN353 is commonly used for heavily loaded gears, cams, camshafts. BS 970 EN363 is defined under British Standards (BS), originating from United Kingdom, while BS 970 EN353 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, BS 970 EN363 vs BS 970 EN353 is a 72.6% match. As per mechanical properties, the match is 100%. Combined, this makes them a close alternative overall at 81.7%.

Frequently Compared With BS 970 EN363:
IS 4367 07Cr4Mo6 IS 1570 (Part 4) 07Cr4Mo6 NF A35-565 100C6 UNI 11234 100Cr6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 7) 10Cr36Mo10H IS 4367 10Cr9Mo10 IS 1570 (Part 4) 10Mo6 IS 1570 (Part 7) 10Mo6H
Match Breakdown
CHEMISTRY MATCH
72.6%
MECHANICAL MATCH
100%
OVERALL
81.7%
Specifications
Property BS 970 EN363 BS 970 EN353
Standard BS 970:1955 BS 970:1955
Category Alloy Steel Alloy Steel
C (%) 0.22-0.26 <=0.20
Si (%) <=0.35 <=0.35
Mn (%) 0.70-1.00 0.50-1.00
Ni (%) 0.40-0.70 1.00-1.50
Cr (%) 0.55-0.80 0.75-1.25
Mo (%) 0.08-0.15 0.08-0.15
S (%) <=0.050 <=0.050
P (%) <=0.050 <=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 EN363 BS 970 EN353
Tensile Strength ≥1004 MPa (65 tons/sq in, converted) ≥1004 MPa (65 tons/sq in, converted)
Condition min (lowest-strength condition of the standard) core, min (lowest-strength condition of the standard)
Elongation Not specified ≥12%
Typical Applications
BS 970 EN363
Bars and billets for forging; forgings and drop-forgings; bars for machining; bright bars. Suitable for tensile strength 65 tons/sq in min. Supplied on tensile strength only or, by special arrangement, on analysis only.
BS 970 EN353
Heavily loaded gears, cams, camshafts
Can BS 970 EN363 Be Substituted With BS 970 EN353?
BS 970 EN363 and BS 970 EN353 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 EN363
No active listings currently.
BS 970 EN353
Round Bar → (3 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 5200–6300 mm (204.72–248.03 in)
On M-EX Right Now
BS 970 EN363
0 active listings and RFQs →
BS 970 EN353
3 active listings and RFQs →
Frequently Asked Questions
What is the difference between BS 970 EN363 and BS 970 EN353?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can BS 970 EN363 be substituted with BS 970 EN353?
BS 970 EN363 and BS 970 EN353 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.