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NF A35-552 XC32 vs BS 970 EN5B

Strong Match — 89.7% match based on chemical composition and mechanical property overlap.

NF A35-552 XC32 (NF A35-552:1986) and BS 970 EN5B (BS 970:1955) are both steel grades. Both fall under the Carbon Steel category. NF A35-552 XC32 is typically used for used for axles, shafts, bolts, machine parts, forged components, and agricultural equipment., while BS 970 EN5B is commonly used for mechanical properties are not part of the contractual obligations of specifications en 5a, en 5b and en 5c.. NF A35-552 XC32 is defined under Association Francaise de Normalisation (NF), originating from France, while BS 970 EN5B is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, NF A35-552 XC32 vs BS 970 EN5B is a 89.7% 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 89.7%.

Frequently Compared With NF A35-552 XC32:
BS 970 (Part 3) 070M55 BS 970 (Part 1) 040A10 BS 970 (Part 1) 040A04 BS 970 (Part 1) 045A10 BS 970 (Part 1) 045A10 BS 970 (Part 1) 045M10 BS 970 (Part 1) 040A12 BS 970 (Part 3) 045A10 BS 970 (Part 3) 045M10 BS 970 (Part 3) 070M20 BS 970 (Part 1) 045M10 BS 970 (Part 1) 055M15
Match Breakdown
CHEMISTRY MATCH
89.7%
MECHANICAL MATCH
No shared data
OVERALL
89.7%
Specifications
Property NF A35-552 XC32 BS 970 EN5B
Standard NF A35-552:1986 BS 970:1955
Category Carbon Steel Carbon Steel
C (%) 0.29-0.35 0.28-0.33
Si (%) 0.10-0.35 0.05-0.35
Mn (%) 0.50-0.80 0.70-0.90
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 XC32 BS 970 EN5B
Tensile Strength 550-700 MPa Not specified
Yield Strength 320-420 MPa Not specified
Elongation 18-24% Not specified
Hardness 160-210 HB Not specified
Typical Applications
NF A35-552 XC32
Used for axles, shafts, bolts, machine parts, forged components, and agricultural equipment.
BS 970 EN5B
Mechanical properties are not part of the contractual obligations of specifications En 5A, En 5B and En 5C.
Can NF A35-552 XC32 Be Substituted With BS 970 EN5B?
NF A35-552 XC32 and BS 970 EN5B overlap closely enough on chemistry and mechanical properties that BS 970 EN5B is often considered as a substitute for NF A35-552 XC32 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 XC32
Round Bar → (2 listings)
Diameter: 40–40 mm (1.57–1.57 in)
Length: 4700–5500 mm (185.04–216.54 in)
BS 970 EN5B
No active listings currently.
On M-EX Right Now
NF A35-552 XC32
2 active listings and RFQs →
BS 970 EN5B
0 active listings and RFQs →
Frequently Asked Questions
What is the difference between NF A35-552 XC32 and BS 970 EN5B?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can NF A35-552 XC32 be substituted with BS 970 EN5B?
NF A35-552 XC32 and BS 970 EN5B overlap closely enough on chemistry and mechanical properties that BS 970 EN5B is often considered as a substitute for NF A35-552 XC32 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.