Project Description

C60 steel is an unalloyed medium carbon engineering steel which has 0.57%-0.65% Carbon as per EN10083 standard.It has characteristics similar to that of C55 carbon steel which has high hardness and high strength  after hardening.C60 is difficult to weld,and machinability is poor due to high carbon content.This steel is generally supplied in an untreated or normalised condition.

C60 Forged round steel with Normalized condition

1.Supply Form & Size & Tolerance

Hot Forged round bar:Φ130-Φ1000mm,Length:3000-10000mm

Flat bar/Blcoks:Thickness :120-800mm xWidth:120-1500mm,Length:2000-6000mm

Surface FinishBlack-Forged Black-Rolled Turned   GrindingPolishedPeeledCold Drawn
Tolerance(0,+5mm)(0,+1mm)(0,+3mm)Best h9Best h11Best H11Best H11

2.Chemical Composition

C60/1.06010.57-0.650.60-0.90≤ 0.045≤ 0.045≤ 0.4≤ 0.4≤ 0.1≤ 0.4≤ 0.63
C60E/1.12210.57-0.650.60-0.90≤ 0.03≤ 0.035≤ 0.4≤ 0.4≤ 0.1≤ 0.4≤ 0.63
C60R/1.12230.57-0.650.60-0.90≤ 0.030.02-0.04≤ 0.4≤ 0.4≤ 0.1≤ 0.4≤ 0.63

3.Relevant Standards


4. Mechanical Property

Mechanical properties a at room temperature in the quenched and tempered condition (+QT)
Diameter d mm≤ 1616-4040-100
Thickness t mm< 88-2020-60
Yield Strength Mpa≥580≥520≥450
Tensile Strength Mpa850-1000800-950750-900
Elongation, %≥11≥13≥14
Reduction of area ,%≥25≥30≥35
Mechanical properties a at room temperature in the normalized condition (+N)
Diameter d mm≤ 1616-100100-250
Thickness t mm≤ 1616-100100-160
Yield Strength Mpa≥380≥340≥310
Tensile Strength Mpa≥710≥670≥650
Elongation, %≥10≥11≥11


C60 steel forging temperature:900 – 1100°C ,cooling as slowly as possible in sand after forged.

6.Heat Treatment

  • Normalizing:  820 – 880°C,Cooling in air
  • Soft Annealing:680 – 710°C,Cooling in furnace
  • Hardening:810 – 850°C,water or oil quench
  • Tempering:550 – 660°C,Cooling in air

Guideline value Curve for C60 Steel Mechanical Property

C60 steel Mechanical property reference curve

X:Tempering temperature,oC

Y:Tensile and Yield Strength,Mpa

Z:Elongation and Reduction in  area,%

7.Surface Hardness

  • Treated to improve shearability (+S):Max 255HB
  • Soft annealed (+A):Max 241HB
NORMAL HARDENABILITY +H (Hardness HRC – distance mm)
HRC - mm12345678910111315202530


C60 is an unalloyed heat treatable steel. It is mainly used forparts of mechanical and vehicle engineering.Typical application such as: wheels, rims, toothed shafts, cylinders, shafts, axles, pins, screwdrivers, pliers and similar items.

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