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NF A35-552 XC40 vs BS 970 (Part 1) 045A10

Related Material — 69.9% match based on chemical composition and mechanical property overlap.

NF A35-552 XC40 (NF A35-552:1986) and BS 970 (Part 1) 045A10 (BS 970 (Part 1):1983) are both steel grades. Both fall under the Carbon Steel category. NF A35-552 XC40 is typically used for used for gears, shafts, crankshafts, couplings, machinery parts, and forged components., while BS 970 (Part 1) 045A10 is commonly used for case hardening steel for mechanical and allied engineering purposes (table 11 mechanical properties).. NF A35-552 XC40 is defined under Association Francaise de Normalisation (NF), originating from France, while BS 970 (Part 1) 045A10 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, NF A35-552 XC40 vs BS 970 (Part 1) 045A10 is a 80.6% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a related material overall at 69.9%.

Frequently Compared With NF A35-552 XC40:
BS 970 (Part 1) 040A10 BS 970 (Part 1) 080A20 BS 970 (Part 3) 070M55 BS 970 (Part 1) 060A40 BS 970 (Part 1) 040A04 BS 970 (Part 1) 040A12 BS 970 (Part 1) 045A10 BS 970 (Part 1) 045M10 BS 970 (Part 1) 055M15 BS 970 (Part 3) 045A10 BS 970 (Part 1) 045M10 BS 970 (Part 3) 045M10
Match Breakdown
CHEMISTRY MATCH
80.6%
MECHANICAL MATCH
No shared data
OVERALL
69.9%
Specifications
Property NF A35-552 XC40 BS 970 (Part 1) 045A10
Standard NF A35-552:1986 BS 970 (Part 1):1983
Category Carbon Steel Carbon Steel
C (%) 0.37-0.44 0.08-0.13
Si (%) 0.10-0.35 Not specified
Mn (%) 0.50-0.80 0.30-0.60
P (%) 0.045 max <=0.050
S (%) 0.045 max <=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 NF A35-552 XC40 BS 970 (Part 1) 045A10
Tensile Strength 620-780 MPa Not specified
Yield Strength 350-480 MPa Not specified
Elongation 16-22% Not specified
Hardness 180-230 HB Not specified
Typical Applications
NF A35-552 XC40
Used for gears, shafts, crankshafts, couplings, machinery parts, and forged components.
BS 970 (Part 1) 045A10
Case hardening steel for mechanical and allied engineering purposes (Table 11 mechanical properties).
Key Differences
Can NF A35-552 XC40 Be Substituted With BS 970 (Part 1) 045A10?
NF A35-552 XC40 and BS 970 (Part 1) 045A10 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
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)
BS 970 (Part 1) 045A10
No active listings currently.
On M-EX Right Now
NF A35-552 XC40
2 active listings and RFQs →
BS 970 (Part 1) 045A10
0 active listings and RFQs →
Frequently Asked Questions
What is the difference between NF A35-552 XC40 and BS 970 (Part 1) 045A10?
NF A35-552 XC40 specifies Si which is not specified for BS 970 (Part 1) 045A10.
Can NF A35-552 XC40 be substituted with BS 970 (Part 1) 045A10?
NF A35-552 XC40 and BS 970 (Part 1) 045A10 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.