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IS 1570 (Part 2/Sec 1):1979 4C2 Steel: Specifications & Listings

IS 1570 (Part 2/Sec 1):1979 4C2: Unalloyed carbon steel designated 4C2 in IS 1570 (Part 2/Sec 1):1979, with carbon <=0.08% and manganese <=0.40%. Old designation C04. The standard was reaffirmed in 2004.

Category: Carbon Steel
Grade Details
GradeIS 1570 (Part 2/Sec 1):1979 4C2
Standard IS 1570 (Part 2/Sec 1):1979
Equivalent / Similar Grades
Grade Standard Region Live on M-EX
IS 11169 (Part 1) 4C2 IS 11169 (Part 1):2022 India No activity yet
SAE J403 1005 SAE J403:2001 USA No activity yet
SAE J403 1006 SAE J403:2001 USA No activity yet
SAE J403 1003 SAE J403:2009 USA No activity yet
SAE J403 1004 SAE J403:2009 USA No activity yet
SAE J403 1007 SAE J403:2009 USA No activity yet
BS 970 (Part 1) 055M15 BS 970 (Part 1):1991 UK No activity yet
Grade ComparisonCompare With a Specific Grade →
Grade Standard Match
IS 11169 (Part 1) 4C2 IS 11169 (Part 1):1984 Strong Match
IS 1570 (Part 2/Sec 1) 5C4 IS 1570 (Part 2/Sec 1):1979 Strong Match
IS 11169 (Part 1) 5C4 IS 11169 (Part 1):1984 Strong Match
SAE J403 1004 SAE J403:2014 Strong Match
SAE J403 1005 SAE J403:2014 Strong Match
IS 1570 (Part 2/Sec 1) 7C4 IS 1570 (Part 2/Sec 1):1979 Strong Match
IS 11169 (Part 1) 7C4 IS 11169 (Part 1):1984 Strong Match
SAE J403 1005 SAE J403:2001 Strong Match
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Chemical Composition (%)
C Mn
<=0.08 <=0.40

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