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IS 11169 (Part 1):2022 15C4 Steel: Specifications & Listings

IS 11169 (Part 1):2022 15C4: Cold heading quality non-alloy steel 15C4 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 hardness in the annealed condition is 140 HBW.

Category: Carbon Steel
Grade Details
GradeIS 11169 (Part 1):2022 15C4
Standard IS 11169 (Part 1):2022
ApplicationsCold 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)
Equivalent / Similar Grades
Grade Standard Region Live on M-EX
IS 1570 (Part 2/Sec 1) 15C4 IS 1570 (Part 2/Sec 1):1979 India No activity yet
IS 11169 (Part 1) 15C4 IS 11169 (Part 1):1984 India No activity yet
Grade ComparisonCompare With a Specific Grade →
Grade Standard Match
IS 11169 (Part 1) 14C6 IS 11169 (Part 1):2022 Strong Match
IS 11169 (Part 1) 15C8 IS 11169 (Part 1):2022 Strong Match
IS 1570 (Part 7) 12C7H IS 1570 (Part 7):1992 Close Alternative
GB/T 699 25 GB/T 699:2015 Close Alternative
IS 11169 (Part 1) 10C4 IS 11169 (Part 1):2022 Related Material
BS 970 (Part 1) 655M13 BS 970 (Part 1):1991 Related Material
BS 970 EN36B BS 970:1955 Related Material
IS 1570 (Part 4) 15Cr6Ni6 IS 1570 (Part 4):1988 Related Material
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Chemical Composition (%)
C Cr Cu Mn Mo Ni P S
<=0.20 <=0.15 <=0.15 0.30-0.60 <=0.05 <=0.15 <=0.035 <=0.035
Mechanical Properties
Hardness, annealed (+AC) <=140 HBW

More data from IS 11169 (Part 1):2022

From the standard
Other composition limits from the table notes and clauses
Values
Maximum unless a range is given (ladle analysis)
Silicon and aluminium
Set by the deoxidation: aluminium killed, total Al at least 0.02 percent; silicon killed, Si at least 0.10 percent; aluminium-silicon killed, Si at least 0.03 percent and total Al at least 0.01 percent
Residual elements, maximum
Sn 0.020, V 0.05 percent; Cr + Ni + Cu + Sn + Mo + V together not over 0.40 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
Hardness in the annealed condition 1 condition
Annealed (+AC), maximum
140 HBW
Brinell hardness for products delivered in the annealed condition.
Source: IS 11169 (Part 1):2022, Table A.4, clause 8.1

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