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NF A35-552 XC48 vs BS 970 (Part 1) 040A12

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

NF A35-552 XC48 (NF A35-552:1986) and BS 970 (Part 1) 040A12 (BS 970 (Part 1):1991) are both steel grades. Both fall under the Carbon Steel category. NF A35-552 XC48 is typically used for used for gears, axles, rollers, machine spindles, hand tools, and wear-resistant parts., while BS 970 (Part 1) 040A12 is commonly used for as-rolled, or as-rolled and softened, steel (section two). NF A35-552 XC48 is defined under Association Francaise de Normalisation (NF), originating from France, while BS 970 (Part 1) 040A12 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, NF A35-552 XC48 vs BS 970 (Part 1) 040A12 is a 79.4% 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 XC48:
BS 970 (Part 1) 040A10 BS 970 (Part 3) 070M55 BS 970 (Part 1) 080A20 BS 970 (Part 1) 060A47 BS 970 (Part 1) 040A04 BS 970 (Part 1) 045A10 BS 970 (Part 1) 045A10 BS 970 (Part 1) 045M10 BS 970 (Part 1) 045M10 BS 970 (Part 1) 055M15 BS 970 (Part 3) 045A10 BS 970 (Part 3) 045M10
Match Breakdown
CHEMISTRY MATCH
79.4%
MECHANICAL MATCH
No shared data
OVERALL
69.9%
Specifications
Property NF A35-552 XC48 BS 970 (Part 1) 040A12
Standard NF A35-552:1986 BS 970 (Part 1):1991
Category Carbon Steel Carbon Steel
C (%) 0.45-0.52 0.10-0.15
Si (%) 0.10-0.35 Not specified
Mn (%) 0.50-0.80 0.30-0.50
P (%) 0.045 max Not specified
S (%) 0.045 max 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 XC48 BS 970 (Part 1) 040A12
Tensile Strength 700-850 MPa Not specified
Yield Strength 400-550 MPa Not specified
Elongation 14-20% Not specified
Hardness 190-255 HB Not specified
Typical Applications
NF A35-552 XC48
Used for gears, axles, rollers, machine spindles, hand tools, and wear-resistant parts.
BS 970 (Part 1) 040A12
As-rolled, or as-rolled and softened, steel (section two)
Key Differences
Can NF A35-552 XC48 Be Substituted With BS 970 (Part 1) 040A12?
NF A35-552 XC48 and BS 970 (Part 1) 040A12 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 XC48
Round Bar → (2 listings)
Diameter: 40–40 mm (1.57–1.57 in)
Length: 6300–7000 mm (248.03–275.59 in)
BS 970 (Part 1) 040A12
No active listings currently.
On M-EX Right Now
NF A35-552 XC48
2 active listings and RFQs →
BS 970 (Part 1) 040A12
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Frequently Asked Questions
What is the difference between NF A35-552 XC48 and BS 970 (Part 1) 040A12?
NF A35-552 XC48 specifies Si, P, S which are not specified for BS 970 (Part 1) 040A12.
Can NF A35-552 XC48 be substituted with BS 970 (Part 1) 040A12?
NF A35-552 XC48 and BS 970 (Part 1) 040A12 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.