IS 11169 (Part 1):2022 15C4C Steel: Specifications & Listings
IS 11169 (Part 1):2022 15C4C: Cold heading quality non-alloy steel 15C4C to IS 11169 (Part 1):2022, for parts that are not heat treated after cold heading or cold extrusion, supplied as wire rod, bars or wire of 2 to 100 mm. Maximum tensile strength as hot rolled is 460 MPa.
Cold heading and cold extrusion of parts not heat treated after cold forming; the standard covers bars, wire rods and wires of 2 to 100 mm (clause 1.1, Annex A)
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Chemical Composition (%)
Al
C
Cr
Cu
Mn
Mo
Ni
P
S
Si
0.020-0.060
0.13-0.17
<=0.30
<=0.30
0.35-0.60
<=0.10
<=0.30
<=0.025
<=0.025
<=0.10
Mechanical Properties
Reduction of Area, as rolled (+AR)
>=58% (for information)
Tensile Strength, as rolled (+AR)
<=460 MPa (over 5 to 100 mm)
More data from IS 11169 (Part 1):2022
From the standard
Other composition limitsfrom the table notes and clauses
Values
Maximum unless a range is given (ladle analysis)
Cr + Ni + Mo, maximum
0.50 percent
Aluminium
May be replaced by another element or elements with a similar effect
Deoxidation
Killed steel; aluminium killed, silicon killed or both (clause 6.2)
Elements not listed are not added intentionally without the purchaser's agreement, except those used to finish the heat.
Source: IS 11169 (Part 1):2022, Table A.2 and its notes, clause 6.2
Tensile strength and reduction of area by delivery conditionby delivery condition and size
Delivery condition
Diameter (mm)
Tensile strength, max (MPa)
Reduction of area, min (%)
+AR or +AR+PE
over 5 to 10
460
58
+AR or +AR+PE
over 10 to 40
460
58
+AR or +AR+PE
over 40 to 100
460
58
+AC or +AC+PE
over 5 to 10
400
68
+AC or +AC+PE
over 10 to 40
400
68
+AC or +AC+PE
over 40 to 100
400
68
+AR+C
over 5 to 10
550
56
+AR+C
over 10 to 40
540
56
+AR+C+AC
2 (incl.) to 5
390
70
+AR+C+AC
over 5 to 10
380
70
+AR+C+AC
over 10 to 40
380
70
+AR+C+AC+LC
2 (incl.) to 5
430
66
+AR+C+AC+LC
over 5 to 10
420
66
+AR+C+AC+LC
over 10 to 40
420
66
+AC+C
over 5 to 10
490
63
+AC+C
over 10 to 40
480
63
Codes: +AR as hot rolled, +PE peeled, +C cold drawn, +AC annealed to spheroidized carbides, +LC skin passed. Reduction of area values are for information only. For non-circular sections the properties are agreed between manufacturer and purchaser.
Source: IS 11169 (Part 1):2022, Table A.3
Active IS 11169 (Part 1):2022 15C4C Listings on M-EX (For Sale)