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NF A35-552 XC55 vs BS 970 (Part 3) 070M55

Strong Match — 95.3% match based on chemical composition and mechanical property overlap.

NF A35-552 XC55 (NF A35-552:1986) and BS 970 (Part 3) 070M55 (BS 970 (Part 3):1991) are both steel grades. Both fall under the Carbon Steel category. NF A35-552 XC55 is typically used for used for springs, shafts, hand tools, wear plates, blades, and machine components., while BS 970 (Part 3) 070M55 is commonly used for used for springs, blades, wear plates, hand tools, shafts, and cutting components.. NF A35-552 XC55 is defined under Association Francaise de Normalisation (NF), originating from France, while BS 970 (Part 3) 070M55 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, NF A35-552 XC55 vs BS 970 (Part 3) 070M55 is a 95.3% 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 95.3%.

Frequently Compared With NF A35-552 XC55:
BS 970 (Part 1) 080A20 BS 970 (Part 1) 040A10 BS 970 (Part 1) 045A10 BS 970 (Part 1) 045M10 BS 970 (Part 1) 060A57 BS 970 (Part 1) 040A12 BS 970 (Part 1) 055M15 BS 970 (Part 1) 040A04 BS 970 (Part 1) 045A10 BS 970 (Part 3) 045A10 BS 970 (Part 1) 045M10 BS 970 (Part 1) 070M55
Match Breakdown
CHEMISTRY MATCH
95.3%
MECHANICAL MATCH
No shared data
OVERALL
95.3%
Specifications
Property NF A35-552 XC55 BS 970 (Part 3) 070M55
Standard NF A35-552:1986 BS 970 (Part 3):1991
Category Carbon Steel Carbon Steel
C (%) 0.52-0.60 0.50-0.60
Si (%) 0.10-0.35 0.10-0.40
Mn (%) 0.50-0.80 0.50-0.90
P (%) 0.045 max <=0.05
S (%) 0.045 max <=0.05
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 XC55 BS 970 (Part 3) 070M55
Tensile Strength 750-900 MPa Not specified
Yield Strength 450-600 MPa Not specified
Elongation 12-18% Not specified
Hardness 210-270 HB Not specified
Typical Applications
NF A35-552 XC55
Used for springs, shafts, hand tools, wear plates, blades, and machine components.
BS 970 (Part 3) 070M55
Used for springs, blades, wear plates, hand tools, shafts, and cutting components.
Can NF A35-552 XC55 Be Substituted With BS 970 (Part 3) 070M55?
NF A35-552 XC55 and BS 970 (Part 3) 070M55 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 3) 070M55 is often considered as a substitute for NF A35-552 XC55 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 XC55
Round Bar → (2 listings)
Diameter: 40–40 mm (1.57–1.57 in)
Length: 5500–7000 mm (216.54–275.59 in)
BS 970 (Part 3) 070M55
Round Bar → (2 listings)
Diameter: 40–40 mm (1.57–1.57 in)
Length: 4800–5800 mm (188.98–228.35 in)
On M-EX Right Now
NF A35-552 XC55
2 active listings and RFQs →
BS 970 (Part 3) 070M55
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between NF A35-552 XC55 and BS 970 (Part 3) 070M55?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can NF A35-552 XC55 be substituted with BS 970 (Part 3) 070M55?
NF A35-552 XC55 and BS 970 (Part 3) 070M55 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 3) 070M55 is often considered as a substitute for NF A35-552 XC55 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.