SAE J403 1140 vs IS 4432 10C8S10

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

SAE J403 1140 (SAE J403:2014) and IS 4432 10C8S10 (IS 4432:1988) are both steel grades. Both fall under the Free Machining Steel category. SAE J403 1140 is typically used for chemistry-only grade; product scope as listed in the composition notes, while IS 4432 10C8S10 is commonly used for forgings and fabrication of case-hardened machine or automobile parts. SAE J403 1140 is defined under SAE International, originating from United States, while IS 4432 10C8S10 is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, SAE J403 1140 vs IS 4432 10C8S10 is a 84.7% 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 1140:
SAE J403 1146 SAE J403 1138 SAE J403 1146 SAE J403 1140 SAE J403 1141 SAE J403 1146 SAE J403 1140 SAE J403 1138 SAE J403 1138 SAE J403 1141 SAE J403 1141 IS 1570 (Part 3) 10C8S10
Match Breakdown
CHEMISTRY MATCH
84.7%
MECHANICAL MATCH
No shared data
OVERALL
69.9%
Specifications
Property SAE J403 1140 IS 4432 10C8S10
Standard SAE J403:2014 IS 4432:1988
Category Free Machining Steel Free Machining Steel
C (%) 0.37-0.44 <=0.15
Mn (%) 0.70-1.00 0.60-0.90
P (%) <=0.030 <=0.035
S (%) 0.08-0.13 0.08-0.13
Si (%) Not specified 0.15-0.35
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property SAE J403 1140 IS 4432 10C8S10
Core Tensile Strength Not specified 600-850 MPa (16 mm) / 550-800 MPa (30 mm)
Core Yield Strength Not specified >=400 MPa (16 mm) / >=330 MPa (30 mm)
Core Elongation Not specified >=12% (16 mm) / >=14% (30 mm)
Core Reduction of Area Not specified >=35% (16 mm) / >=40% (30 mm)
Hardness, annealed (A) Not specified <=150 HB
Typical Applications
SAE J403 1140
Chemistry-only grade; product scope as listed in the composition notes
IS 4432 10C8S10
Forgings and fabrication of case-hardened machine or automobile parts
Key Differences
Can SAE J403 1140 Be Substituted With IS 4432 10C8S10?
SAE J403 1140 and IS 4432 10C8S10 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 1140
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IS 4432 10C8S10
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Frequently Asked Questions
What is the difference between SAE J403 1140 and IS 4432 10C8S10?
IS 4432 10C8S10 specifies Si which is not specified for SAE J403 1140.
Can SAE J403 1140 be substituted with IS 4432 10C8S10?
SAE J403 1140 and IS 4432 10C8S10 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.