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IS 11169 (Part 1):1984 7C4 Steel: Specifications & Listings

IS 11169 (Part 1):1984 7C4: Cold heading quality carbon steel 7C4 to IS 11169 (Part 1):1984, not intended for heat treatment, supplied as wire, wire rod or bars of 2 to 100 mm diameter. Old designation C07. Table 5 of the standard prints this grade as 7C3. The standard was reaffirmed in 2004.

Category: Carbon Steel
Grade Details
GradeIS 11169 (Part 1):1984 7C4
Standard IS 11169 (Part 1):1984
ApplicationsCold heading and cold extrusion; the standard covers wires, wire rods and bars of 2 to 100 mm diameter (clause 1.1)
Equivalent / Similar Grades
Grade Standard Region Live on M-EX
IS 11169 (Part 1) 7C4 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 1008 SAE J403:2001 USA No activity yet
SAE J403 1009 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 EN2E BS 970:1955 UK No activity yet
BS 970 EN3 BS 970:1955 UK No activity yet
BS 970 EN4A BS 970:1955 UK No activity yet
Grade ComparisonCompare With a Specific Grade →
Grade Standard Match
IS 1570 (Part 2/Sec 1) 7C4 IS 1570 (Part 2/Sec 1):1979 Strong Match
BS 970 EN2A BS 970:1955 Strong Match
IS 11169 (Part 1) 5C4 IS 11169 (Part 1):1984 Strong Match
IS 1570 (Part 2/Sec 1) 5C4 IS 1570 (Part 2/Sec 1):1979 Strong Match
BS 970 EN2B BS 970:1955 Strong Match
BS 970 EN2A/1 BS 970:1955 Strong Match
IS 11169 (Part 1) 4C2 IS 11169 (Part 1):1984 Strong Match
SAE J403 1009 SAE J403:2014 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
<=0.12 <=0.50
Mechanical Properties
Hardness, annealed <=120 HB

More data from IS 11169 (Part 1):1984

From the standard
Other composition limits from the clauses and notes
Sulphur and phosphorus, maximum
0.035 percent each; other limits by agreement
Deoxidation
Rimmed, semi-killed or killed, as ordered
Nitrogen, when ordered rimmed
Below 0.008 percent
Elements not specified, maximum
Cr 0.15, Ni 0.15, Cu 0.15, Sn 0.02, Mo 0.05, V 0.05 percent; total 0.40
Narrower carbon and silicon ranges may be agreed between purchaser and manufacturer; elements not listed are not added except by agreement or to finish the heat.
Source: IS 11169 (Part 1):1984, clauses 4.1.2, 4.1.3, 4.2 and 4.4, Table 1 notes
Hardness in the annealed condition 1 condition
Annealed, maximum
120 HB
Brinell hardness for products delivered in the annealed condition. Table 5 prints this grade as 7C3.
Source: IS 11169 (Part 1):1984, Table 5, clause 8.1

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