IS 11169 (Part 1):2022 25C9GC Steel: Specifications & Listings
IS 11169 (Part 1):2022 25C9GC: Cold heading quality non-alloy steel 25C9GC 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 590 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
<=0.015
0.23-0.27
<=0.30
<=0.30
0.80-1.00
<=0.10
<=0.30
<=0.025
<=0.025
0.15-0.25
Mechanical Properties
Reduction of Area, as rolled (+AR)
>=50% (for information)
Tensile Strength, as rolled (+AR)
<=590 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
Manganese
A lower manganese content may be specified, with a range of 0.20 percent
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
590
50
+AR or +AR+PE
over 10 to 40
590
50
+AR or +AR+PE
over 40 to 100
590
50
+AR+C
2 (incl.) to 5
570
45
+AR+C
over 5 to 10
470
45
+AR+C
over 10 to 40
470
45
+AR+C+AC+LC
2 (incl.) to 5
440
55
+AR+C+AC+LC
over 5 to 10
440
55
+AR+C+AC+LC
over 10 to 40
440
55
+AC+C
over 5 to 10
440
55
+AC+C
over 10 to 40
440
55
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. Printed as shown: in this row of Table A.3 the cold drawn values (570 and 470 MPa) are below the as rolled value and the +AR+C+AC column is empty, unlike every other grade in the table.
Source: IS 11169 (Part 1):2022, Table A.3
Active IS 11169 (Part 1):2022 25C9GC Listings on M-EX (For Sale)