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BS 970 EN16M vs SAE J403 1118

Minimal Match — 35% match based on chemical composition and mechanical property overlap.

BS 970 EN16M (BS 970:1955) and SAE J403 1118 (SAE J403:2009) are both steel grades. Both fall under the Free Machining Steel category. BS 970 EN16M is typically used for bars and billets for forging; forgings and drop forgings; bars for machining; bright bars., while SAE J403 1118 is commonly used for chemistry-only grade; product scope as listed in the composition notes. BS 970 EN16M is defined under British Standards (BS), originating from United Kingdom, while SAE J403 1118 is defined under SAE International, originating from United States.

As per chemical composition, BS 970 EN16M vs SAE J403 1118 is a 70.4% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a minimal match overall at 35%.

Frequently Compared With BS 970 EN16M:
IS 4432 10C8S10 SAE J403 1117 SAE J403 1118 SAE J403 1126 SAE J403 1126 SAE J403 1126 SAE J403 1132 SAE J403 1132 IS 1570 (Part 3) 10C8S10 SAE J403 1117 SAE J403 1117 SAE J403 1118
Match Breakdown
CHEMISTRY MATCH
70.4%
MECHANICAL MATCH
No shared data
OVERALL
35%
Specifications
Property BS 970 EN16M SAE J403 1118
Standard BS 970:1955 SAE J403:2009
Category Free Machining Steel Free Machining Steel
C (%) 0.30-0.40 0.14-0.20
Si (%) <=0.25 Not specified
Mn (%) 1.30-1.80 1.30-1.60
Mo (%) 0.20-0.35 Not specified
S (%) 0.12-0.20 0.08-0.13
P (%) <=0.060 <=0.030
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Typical Applications
BS 970 EN16M
Bars and billets for forging; forgings and drop forgings; bars for machining; bright bars.
SAE J403 1118
Chemistry-only grade; product scope as listed in the composition notes
Key Differences
Can BS 970 EN16M Be Substituted With SAE J403 1118?
BS 970 EN16M and SAE J403 1118 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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BS 970 EN16M
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SAE J403 1118
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Frequently Asked Questions
What is the difference between BS 970 EN16M and SAE J403 1118?
BS 970 EN16M specifies Si, Mo which are not specified for SAE J403 1118.
Can BS 970 EN16M be substituted with SAE J403 1118?
BS 970 EN16M and SAE J403 1118 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.