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BS 970 (Part 3) 080M40 vs NF A35-552 XC40

Strong Match — 94% match based on chemical composition and mechanical property overlap.

BS 970 (Part 3) 080M40 (BS 970 (Part 3):1991) and NF A35-552 XC40 (NF A35-552:1986) are both steel grades. Both fall under the Carbon Steel category. BS 970 (Part 3) 080M40 is typically used for shafts, gears, axles, general engineering, while NF A35-552 XC40 is commonly used for used for gears, shafts, crankshafts, couplings, machinery parts, and forged components.. BS 970 (Part 3) 080M40 is defined under British Standards (BS), originating from United Kingdom, while NF A35-552 XC40 is defined under Association Francaise de Normalisation (NF), originating from France.

As per chemical composition, BS 970 (Part 3) 080M40 vs NF A35-552 XC40 is a 94% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a strong match overall at 94%.

Frequently Compared With BS 970 (Part 3) 080M40:
BS 970 (Part 1) 040A10 BS 970 (Part 3) 070M55 BS 970 (Part 1) 040A12 BS 970 (Part 3) 045A10 BS 970 (Part 1) 045M10 BS 970 (Part 3) 045M10 BS 970 (Part 1) 055M15 BS 970 (Part 1) 040A04 BS 970 (Part 1) 045A10 BS 970 (Part 1) 045A10 BS 970 (Part 1) 045M10 BS 970 (Part 1) 060A32
Match Breakdown
CHEMISTRY MATCH
94%
MECHANICAL MATCH
No shared data
OVERALL
94%
Specifications
Property BS 970 (Part 3) 080M40 NF A35-552 XC40
Standard BS 970 (Part 3):1991 NF A35-552:1986
Category Carbon Steel Carbon Steel
C (%) 0.36-0.44 0.37-0.44
Si (%) 0.10-0.40 0.10-0.35
Mn (%) 0.60-1.00 0.50-0.80
P (%) <=0.05 0.045 max
S (%) <=0.05 0.045 max
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) 080M40 NF A35-552 XC40
Tensile Strength Not specified 620-780 MPa
Yield Strength Not specified 350-480 MPa
Elongation Not specified 16-22%
Hardness Not specified 180-230 HB
Typical Applications
BS 970 (Part 3) 080M40
Shafts, gears, axles, general engineering
NF A35-552 XC40
Used for gears, shafts, crankshafts, couplings, machinery parts, and forged components.
Can BS 970 (Part 3) 080M40 Be Substituted With NF A35-552 XC40?
BS 970 (Part 3) 080M40 and NF A35-552 XC40 overlap closely enough on chemistry and mechanical properties that NF A35-552 XC40 is often considered as a substitute for BS 970 (Part 3) 080M40 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
Forms & Sizes Available on M-EX
BS 970 (Part 3) 080M40
Round Bar → (2 listings)
Diameter: 40–40 mm (1.57–1.57 in)
Length: 6000–6900 mm (236.22–271.65 in)
NF A35-552 XC40
Round Bar → (2 listings)
Diameter: 40–40 mm (1.57–1.57 in)
Length: 5000–5700 mm (196.85–224.41 in)
On M-EX Right Now
BS 970 (Part 3) 080M40
2 active listings and RFQs →
NF A35-552 XC40
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between BS 970 (Part 3) 080M40 and NF A35-552 XC40?
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) 080M40 be substituted with NF A35-552 XC40?
BS 970 (Part 3) 080M40 and NF A35-552 XC40 overlap closely enough on chemistry and mechanical properties that NF A35-552 XC40 is often considered as a substitute for BS 970 (Part 3) 080M40 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.