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NF A35-552 XC48 vs BS 970 EN43B

Strong Match — 90.6% match based on chemical composition and mechanical property overlap.

NF A35-552 XC48 (NF A35-552:1986) and BS 970 EN43B (BS 970:1955) are both steel grades. Both fall under the Carbon Steel category. NF A35-552 XC48 is defined under Association Francaise de Normalisation (NF), originating from France, while BS 970 EN43B is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, NF A35-552 XC48 vs BS 970 EN43B is a 90.6% 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 90.6%.

Frequently Compared With NF A35-552 XC48:
BS 970 (Part 1) 040A10 BS 970 (Part 3) 070M55 BS 970 (Part 1) 040A12 BS 970 (Part 1) 055M15 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 3) 045A10 BS 970 (Part 3) 045M10
Match Breakdown
CHEMISTRY MATCH
90.6%
MECHANICAL MATCH
No shared data
OVERALL
90.6%
Specifications
Property NF A35-552 XC48 BS 970 EN43B
Standard NF A35-552:1986 BS 970:1955
Category Carbon Steel Carbon Steel
C (%) 0.45-0.52 0.45-0.50
Si (%) 0.10-0.35 0.05-0.35
Mn (%) 0.50-0.80 0.70-1.00
P (%) 0.045 max <=0.060
S (%) 0.045 max <=0.060
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 EN43B
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 EN43B
Not documented
Can NF A35-552 XC48 Be Substituted With BS 970 EN43B?
NF A35-552 XC48 and BS 970 EN43B overlap closely enough on chemistry and mechanical properties that BS 970 EN43B is often considered as a substitute for NF A35-552 XC48 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
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 EN43B
No active listings currently.
On M-EX Right Now
NF A35-552 XC48
2 active listings and RFQs →
BS 970 EN43B
0 active listings and RFQs →
Frequently Asked Questions
What is the difference between NF A35-552 XC48 and BS 970 EN43B?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can NF A35-552 XC48 be substituted with BS 970 EN43B?
NF A35-552 XC48 and BS 970 EN43B overlap closely enough on chemistry and mechanical properties that BS 970 EN43B is often considered as a substitute for NF A35-552 XC48 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.