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IS 1570 (Part 2/Sec 1) 45C8 vs SAE J403 1045

Strong Match — 96.3% match based on chemical composition and mechanical property overlap.

IS 1570 (Part 2/Sec 1) 45C8 (IS 1570 (Part 2/Sec 1):1979) and SAE J403 1045 (SAE J403:2001) are both steel grades. Both fall under the Carbon Steel category. IS 1570 (Part 2/Sec 1) 45C8 is typically used for billets and bars for forgings, carbon steel forgings, cold rolled strip for springs, flame and induction hardened parts, shipbuilding forgings and hardened and tempered parts (the standard links this grade to is 1875, is 2004, is 2507, is 3930, is 3261, is 5517), while SAE J403 1045 is commonly used for chemistry-only grade; product scope as listed in the composition notes. IS 1570 (Part 2/Sec 1) 45C8 is defined under Bureau of Indian Standards (IS), originating from India, while SAE J403 1045 is defined under SAE International, originating from United States.

As per chemical composition, IS 1570 (Part 2/Sec 1) 45C8 vs SAE J403 1045 is a 96.3% 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 96.3%.

Frequently Compared With IS 1570 (Part 2/Sec 1) 45C8:
BS 970 (Part 1) 040A10 BS 970 (Part 3) 070M55 BS 970 (Part 3) 045A10 BS 970 (Part 1) 045M10 BS 970 (Part 1) 040A04 BS 970 (Part 1) 040A12 BS 970 (Part 1) 045A10 BS 970 (Part 1) 045M10 BS 970 (Part 3) 045M10 BS 970 (Part 1) 060A32 BS 970 (Part 1) 045A10 BS 970 (Part 1) 055M15
Match Breakdown
CHEMISTRY MATCH
96.3%
MECHANICAL MATCH
No shared data
OVERALL
96.3%
Specifications
Property IS 1570 (Part 2/Sec 1) 45C8 SAE J403 1045
Standard IS 1570 (Part 2/Sec 1):1979 SAE J403:2001
Category Carbon Steel Carbon Steel
C (%) 0.40-0.50 0.43-0.50
Mn (%) 0.60-0.90 0.60-0.90
P (%) Not specified <=0.030
S (%) Not specified <=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 IS 1570 (Part 2/Sec 1) 45C8 SAE J403 1045
Tensile Strength 630-710 MPa Not specified
Elongation >=15% Not specified
Typical Applications
IS 1570 (Part 2/Sec 1) 45C8
Billets and bars for forgings, carbon steel forgings, cold rolled strip for springs, flame and induction hardened parts, shipbuilding forgings and hardened and tempered parts (the standard links this grade to IS 1875, IS 2004, IS 2507, IS 3930, IS 3261, IS 5517)
SAE J403 1045
Chemistry-only grade; product scope as listed in the composition notes
Key Differences
Can IS 1570 (Part 2/Sec 1) 45C8 Be Substituted With SAE J403 1045?
IS 1570 (Part 2/Sec 1) 45C8 and SAE J403 1045 overlap closely enough on chemistry and mechanical properties that SAE J403 1045 is often considered as a substitute for IS 1570 (Part 2/Sec 1) 45C8 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
On M-EX Right Now
IS 1570 (Part 2/Sec 1) 45C8
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SAE J403 1045
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Frequently Asked Questions
What is the difference between IS 1570 (Part 2/Sec 1) 45C8 and SAE J403 1045?
SAE J403 1045 specifies P, S which are not specified for IS 1570 (Part 2/Sec 1) 45C8.
Can IS 1570 (Part 2/Sec 1) 45C8 be substituted with SAE J403 1045?
IS 1570 (Part 2/Sec 1) 45C8 and SAE J403 1045 overlap closely enough on chemistry and mechanical properties that SAE J403 1045 is often considered as a substitute for IS 1570 (Part 2/Sec 1) 45C8 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.