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NF A35-552 XC45 vs BS 970 (Part 1) 045A10

Minimal Match — 53% match based on chemical composition and mechanical property overlap.

NF A35-552 XC45 (NF A35-552:1986) and BS 970 (Part 1) 045A10 (BS 970 (Part 1):1991) are both steel grades. Both fall under the Carbon Steel category. NF A35-552 XC45 is typically used for shafts, gears, axles, bolts, studs, machine parts, forgings, while BS 970 (Part 1) 045A10 is commonly used for case hardening steel (section four). NF A35-552 XC45 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 XC45 vs BS 970 (Part 1) 045A10 is a 79.4% match. As per mechanical properties, the match is 0%. Combined, this makes them a minimal match overall at 53%.

Frequently Compared With NF A35-552 XC45:
BS 970 (Part 3) 070M55 BS 970 (Part 1) 040A10 BS 970 (Part 1) 080A20 BS 970 (Part 1) 040A12 BS 970 (Part 3) 045A10 BS 970 (Part 1) 040A04 BS 970 (Part 1) 045A10 BS 970 (Part 1) 055M15 BS 970 (Part 1) 045M10 BS 970 (Part 1) 045M10 BS 970 (Part 1) 060A32 BS 970 (Part 3) 045M10
Match Breakdown
CHEMISTRY MATCH
79.4%
MECHANICAL MATCH
0%
OVERALL
53%
Specifications
Property NF A35-552 XC45 BS 970 (Part 1) 045A10
Standard NF A35-552:1986 BS 970 (Part 1):1991
Category Carbon Steel Carbon Steel
C (%) 0.42-0.50 0.08-0.13
Si (%) 0.10-0.40 Not specified
Mn (%) 0.50-0.80 0.30-0.60
S (%) <=0.035 Not specified
P (%) <=0.035 Not specified
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 XC45 BS 970 (Part 1) 045A10
Tensile Strength 570-700 MPa 430 MPa min
Yield Strength >=340 MPa Not specified
Elongation >=16% 18 % min
Hardness 170-210 HB Not specified
Condition Not specified Case hardened, 19 mm test bar
Typical Applications
NF A35-552 XC45
shafts, gears, axles, bolts, studs, machine parts, forgings
BS 970 (Part 1) 045A10
Case hardening steel (section four)
Key Differences
Can NF A35-552 XC45 Be Substituted With BS 970 (Part 1) 045A10?
NF A35-552 XC45 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 XC45
Round Bar → (2 listings)
Diameter: 40–40 mm (1.57–1.57 in)
Length: 6900–7000 mm (271.65–275.59 in)
BS 970 (Part 1) 045A10
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On M-EX Right Now
NF A35-552 XC45
2 active listings and RFQs →
BS 970 (Part 1) 045A10
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Frequently Asked Questions
What is the difference between NF A35-552 XC45 and BS 970 (Part 1) 045A10?
NF A35-552 XC45 specifies Si, S, P which are not specified for BS 970 (Part 1) 045A10.
Can NF A35-552 XC45 be substituted with BS 970 (Part 1) 045A10?
NF A35-552 XC45 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.