C60R / 1.1223 Special Steel

C60R / 1.1223 Special 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 1055 carbon steel which has high hardness and high strength after hardening.C60R / 1.1223 Special Steel is difficult to weld,and machinability is poor due to high carbon content.This steel is generally supplied in an untreated or normalised condition.

C60R / 1.1223 Special Steel 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 Finish	Black-Forged	Black-Rolled	Turned	Grinding	Polished	Peeled	Cold Drawn
Tolerance	(0，+5mm)	(0，+1mm)	(0，+3mm)	Best h9	Best h11	Best H11	Best H11

C60R / 1.1223 Special Steel Chemical Composition per EN 10083-2 (Special Steel)

GRADE	NUMBER	C	Si	Mn	P	S	Cr	Mo	Ni	Cr+Mo+Ni
C60R	1.1223	0.57-0.65	≤ 0.40	0.60-0.90	≤ 0.030	0.02-0.04	≤ 0.40	≤ 0.10	≤ 0.40	≤ 0.63

C60R / 1.1223 Special Steel RELEVANT STANDARDS

USA	UK	China	Japan	Australia
1060	070M60	60#	S60C	1060

C60R / 1.1223 Special Steel MECHANICAL PROPERTY

Mechanical properties a at room temperature in the quenched and tempered condition (+QT)
Diameter d mm	≤ 16	16-40	40-100
Thickness t mm	< 8	8-20	20-60
Yield Strength Mpa	≥580	≥520	≥450
Tensile Strength Mpa	850-1000	800-950	750-900
Elongation, %	≥11	≥13	≥14
Reduction of area ,%	≥25	≥30	≥35

Mechanical properties a at room temperature in the normalized condition (+N)
Diameter d mm	≤ 16	16-100	100-250
Thickness t mm	≤ 16	16-100	100-160
Yield Strength Mpa	≥380	≥340	≥310
Tensile Strength Mpa	≥710	≥670	≥650
Elongation, %	≥10	≥11	≥11

C60R / 1.1223 Special Steel FORGING

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

C60R / 1.1223 Special Steel 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

C60R / 1.1223 Special Steel SURFACE HARDNESS

• Treated to improve shearability (+S):Max 255HB
• Soft annealed (+A):Max 241HB

NORMAL HARDENABILITY +H (Hardness HRC – distance mm)
HRC – mm	1	2	3	4	5	6	7	8	9	10	11	13	15	20	25	30
MAX	67	66	65	63	62	59	54	47	39	37	36	35	34	33	31	30
MIN	60	57	50	39	35	33	32	31	30	29	28	27	26	25	23	21

C60R / 1.1223 Special Steel APPLICATION

C60R / 1.1223 Special Steel 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.