1. Chemical composition

Material Code	Chemical Composition(%)
	C	Si	Mn	P	S	Cr	Ni	Mo
CC3	2.90~3.60	0.25~0.80	0.20~1.00	≤0.40	≤0.08	0.50~1.50	2.01~3.00	0.20~0.60

2. Physical properties

 

Designation of rolls	Barrel hardness (HSD)	Neck hardness (HSD)	Tensile strength (MFP)
backup roll	70~85	32~45	≥350