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NF A35-552 XC40 vs SAE J403 1040

Strong Match — 90.2% match based on chemical composition and mechanical property overlap.

NF A35-552 XC40 (NF A35-552:1986) and SAE J403 1040 (SAE J403:2001) are both steel grades. Both fall under the Carbon Steel category. NF A35-552 XC40 is typically used for used for gears, shafts, crankshafts, couplings, machinery parts, and forged components., while SAE J403 1040 is commonly used for chemistry-only grade; product scope as listed in the composition notes. NF A35-552 XC40 is defined under Association Francaise de Normalisation (NF), originating from France, while SAE J403 1040 is defined under SAE International, originating from United States.

As per chemical composition, NF A35-552 XC40 vs SAE J403 1040 is a 90.2% 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 90.2%.

Frequently Compared With NF A35-552 XC40:
BS 970 (Part 1) 040A10 BS 970 (Part 3) 070M55 BS 970 (Part 1) 040A04 BS 970 (Part 1) 040A12 BS 970 (Part 1) 045A10 BS 970 (Part 1) 045M10 BS 970 (Part 1) 055M15 BS 970 (Part 1) 060A40 BS 970 (Part 1) 045A10 BS 970 (Part 3) 045A10 BS 970 (Part 1) 045M10 BS 970 (Part 3) 045M10
Match Breakdown
CHEMISTRY MATCH
90.2%
MECHANICAL MATCH
No shared data
OVERALL
90.2%
Specifications
Property NF A35-552 XC40 SAE J403 1040
Standard NF A35-552:1986 SAE J403:2001
Category Carbon Steel Carbon Steel
C (%) 0.37-0.44 0.37-0.44
Si (%) 0.10-0.35 Not specified
Mn (%) 0.50-0.80 0.60-0.90
P (%) 0.045 max <=0.030
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 A35-552 XC40 SAE J403 1040
Tensile Strength 620-780 MPa Not specified
Yield Strength 350-480 MPa Not specified
Elongation 16-22% Not specified
Hardness 180-230 HB Not specified
Typical Applications
NF A35-552 XC40
Used for gears, shafts, crankshafts, couplings, machinery parts, and forged components.
SAE J403 1040
Chemistry-only grade; product scope as listed in the composition notes
Key Differences
Can NF A35-552 XC40 Be Substituted With SAE J403 1040?
NF A35-552 XC40 and SAE J403 1040 overlap closely enough on chemistry and mechanical properties that SAE J403 1040 is often considered as a substitute for NF A35-552 XC40 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 XC40
Round Bar → (2 listings)
Diameter: 40–40 mm (1.57–1.57 in)
Length: 5000–5700 mm (196.85–224.41 in)
SAE J403 1040
No active listings currently.
On M-EX Right Now
NF A35-552 XC40
2 active listings and RFQs →
SAE J403 1040
0 active listings and RFQs →
Frequently Asked Questions
What is the difference between NF A35-552 XC40 and SAE J403 1040?
NF A35-552 XC40 specifies Si which is not specified for SAE J403 1040.
Can NF A35-552 XC40 be substituted with SAE J403 1040?
NF A35-552 XC40 and SAE J403 1040 overlap closely enough on chemistry and mechanical properties that SAE J403 1040 is often considered as a substitute for NF A35-552 XC40 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.