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SAE J403 1045 vs BS 970 (Part 1) 045M10

Related Material — 69.9% match based on chemical composition and mechanical property overlap.

SAE J403 1045 (SAE J403:2001) and BS 970 (Part 1) 045M10 (BS 970 (Part 1):1983) are both steel grades. Both fall under the Carbon Steel category. SAE J403 1045 is typically used for chemistry-only grade; product scope as listed in the composition notes, while BS 970 (Part 1) 045M10 is commonly used for case hardening steel for mechanical and allied engineering purposes (table 11 mechanical properties).. SAE J403 1045 is defined under SAE International, originating from United States, while BS 970 (Part 1) 045M10 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, SAE J403 1045 vs BS 970 (Part 1) 045M10 is a 84.6% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a related material overall at 69.9%.

Frequently Compared With SAE J403 1045:
BS 970 (Part 1) 040A10 BS 970 (Part 3) 070M55 BS 970 (Part 1) 080A20 BS 970 (Part 1) 045A10 BS 970 (Part 1) 045A10 BS 970 (Part 1) 055M15 BS 970 (Part 1) 060A32 BS 970 (Part 3) 045A10 BS 970 (Part 1) 045M10 BS 970 (Part 3) 045M10 BS 970 (Part 1) 040A04 BS 970 (Part 1) 040A12
Match Breakdown
CHEMISTRY MATCH
84.6%
MECHANICAL MATCH
No shared data
OVERALL
69.9%
Specifications
Property SAE J403 1045 BS 970 (Part 1) 045M10
Standard SAE J403:2001 BS 970 (Part 1):1983
Category Carbon Steel Carbon Steel
C (%) 0.43-0.50 0.07-0.13
Mn (%) 0.60-0.90 0.30-0.60
P (%) <=0.030 <=0.050
S (%) <=0.050 <=0.050
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Typical Applications
SAE J403 1045
Chemistry-only grade; product scope as listed in the composition notes
BS 970 (Part 1) 045M10
Case hardening steel for mechanical and allied engineering purposes (Table 11 mechanical properties).
Can SAE J403 1045 Be Substituted With BS 970 (Part 1) 045M10?
SAE J403 1045 and BS 970 (Part 1) 045M10 share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.
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SAE J403 1045
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BS 970 (Part 1) 045M10
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Frequently Asked Questions
What is the difference between SAE J403 1045 and BS 970 (Part 1) 045M10?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can SAE J403 1045 be substituted with BS 970 (Part 1) 045M10?
SAE J403 1045 and BS 970 (Part 1) 045M10 share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.