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IS 11169 (Part 1):1984 10C4 Steel: Specifications & Listings

IS 11169 (Part 1):1984 10C4: Cold heading quality carbon steel 10C4 to IS 11169 (Part 1):1984, listed both for use without heat treatment and as a case hardening steel, supplied as wire, wire rod or bars of 2 to 100 mm diameter. Old designation C10. The standard was reaffirmed in 2004.

Category: Carbon Steel
Grade Details
GradeIS 11169 (Part 1):1984 10C4
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) 10C4 IS 11169 (Part 1):2022 India 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 1010 SAE J403:2001 USA No activity yet
SAE J403 1012 SAE J403:2001 USA No activity yet
SAE J403 1013 SAE J403:2001 USA No activity yet
BS 970 (Part 1) 045A10 BS 970 (Part 1):1983 UK No activity yet
Grade ComparisonCompare With a Specific Grade →
Grade Standard Match
SAE J403 1009 SAE J403:2014 Strong Match
BS 970 EN2B BS 970:1955 Strong Match
SAE J403 1009 SAE J403:2001 Strong Match
SAE J403 1009 SAE J403:2009 Strong Match
BS 970 (Part 1) 045M10 BS 970 (Part 1):1983 Strong Match
BS 970 EN2A BS 970:1955 Strong Match
SAE J403 1010 SAE J403:2014 Strong Match
SAE J403 1012 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
<=0.15 0.30-0.60
Mechanical Properties
Core Tensile Strength >=500 MPa (15 mm)
Core Elongation >=17% (15 mm)
Hardness, annealed <=130 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
Silicon, when ordered as a case hardening steel
0.05-0.35 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, Table 3 notes
Hardness in the annealed condition 1 condition
Annealed, maximum
130 HB
Brinell hardness for products delivered in the annealed condition.
Source: IS 11169 (Part 1):1984, Table 5, clause 8.1
Core properties after case hardening refined and quenched
Tensile strength, min (MPa)Elongation, min (%)Izod impact, min (J)Limiting ruling section (mm)
500175515
Guidance values (clause 9.2.1) for the core in the refined and quenched condition. Impact value applies when specified. Core properties for wire of 12 mm diameter and below are agreed between purchaser and supplier.
Source: IS 11169 (Part 1):1984, Table 7

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