Post Stock Login Register

NF A35-551 XC18 vs BS 970 EN2D

Strong Match — 88.6% match based on chemical composition and mechanical property overlap.

NF A35-551 XC18 (NF A35-551:1986) and BS 970 EN2D (BS 970:1955) are both steel grades. Both fall under the Carbon Steel category. NF A35-551 XC18 is typically used for used for shafts, pins, forged parts, welded structures, machine components, and low-stress fittings., while BS 970 EN2D is commonly used for bars and billets for forging; forgings and drop-forgings; bars for machining. NF A35-551 XC18 is defined under Association Francaise de Normalisation (NF), originating from France, while BS 970 EN2D is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, NF A35-551 XC18 vs BS 970 EN2D is a 88.6% 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 88.6%.

Frequently Compared With NF A35-551 XC18:
BS 970 (Part 1) 040A10 BS 970 (Part 3) 070M55 BS 970 (Part 3) 070M20 BS 970 (Part 3) 080A15 BS 970 (Part 1) 040A12 BS 970 (Part 3) 045A10 BS 970 (Part 1) 045M10 BS 970 (Part 1) 040A04 BS 970 (Part 1) 045A10 BS 970 (Part 1) 045A10 BS 970 (Part 1) 045M10 BS 970 (Part 3) 045M10
Match Breakdown
CHEMISTRY MATCH
88.6%
MECHANICAL MATCH
No shared data
OVERALL
88.6%
Specifications
Property NF A35-551 XC18 BS 970 EN2D
Standard NF A35-551:1986 BS 970:1955
Category Carbon Steel Carbon Steel
C (%) 0.15-0.21 0.15-0.30
Si (%) 0.10-0.35 Not specified
Mn (%) 0.40-0.70 0.40-0.70
P (%) 0.045 max <=0.050
S (%) 0.045 max <=0.050
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property NF A35-551 XC18 BS 970 EN2D
Tensile Strength 370-500 MPa Not specified
Yield Strength 220-300 MPa Not specified
Elongation 26-32% Not specified
Hardness 110-150 HB Not specified
Typical Applications
NF A35-551 XC18
Used for shafts, pins, forged parts, welded structures, machine components, and low-stress fittings.
BS 970 EN2D
Bars and billets for forging; forgings and drop-forgings; bars for machining
Key Differences
Can NF A35-551 XC18 Be Substituted With BS 970 EN2D?
NF A35-551 XC18 and BS 970 EN2D overlap closely enough on chemistry and mechanical properties that BS 970 EN2D is often considered as a substitute for NF A35-551 XC18 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 A35-551 XC18
Round Bar → (2 listings)
Diameter: 40–40 mm (1.57–1.57 in)
Length: 6100–6800 mm (240.16–267.72 in)
BS 970 EN2D
No active listings currently.
On M-EX Right Now
NF A35-551 XC18
2 active listings and RFQs →
BS 970 EN2D
0 active listings and RFQs →
Frequently Asked Questions
What is the difference between NF A35-551 XC18 and BS 970 EN2D?
NF A35-551 XC18 specifies Si which is not specified for BS 970 EN2D.
Can NF A35-551 XC18 be substituted with BS 970 EN2D?
NF A35-551 XC18 and BS 970 EN2D overlap closely enough on chemistry and mechanical properties that BS 970 EN2D is often considered as a substitute for NF A35-551 XC18 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.