Changzhou Ruihong Roll co.,ltd

Fine grain graphite composite centrifugal roll the working layer shape, size, distribution of graphite and carbide can be controlled by the cooling and alloy content, due to the addition of manganese,chromium, nickel, molybdenum and other alloy elements, the matrix structure can change frompearlite, bainite to martensite, exist with a small amount of fine graphite, not only improve the rollspalling, thermal crack and wear resistance, and the working layer of roll barrel hardness drop is very small.

1、化学成份

轧辊名称	代码	C	Si	Mn	P	S	Ni	Cr	Mo
镍铬钼冷硬铸铁离心复合Ⅲ	CCⅢ	2.90-3.60	0.25-0.80	0.20-1.00	≤0.40	≤0.08	2.01-3.00	0.50-1.50	0.20-0.60
镍铬钼冷硬铸铁离心复合Ⅳ	CCⅣ	2.90-3.60	0.25-0.80	0.20-1.00	≤0.40	≤0.08	3.01-4.50	0.50-1.70	0.20-0.60
镍铬钼无限冷硬离心复合Ⅲ	ICⅢ	2.90-3.60	0.60-1.20	0.40-1.00	≤0.25	≤0.05	2.01-3.00	0.70-1.20	0.20-1.00
镍铬钼无限冷硬离心复合Ⅳ	ICⅣ	2.90-3.60	0.60-1.50	0.40-1.00	≤0.10	≤0.05	3.01-4.80	1.00-2.00	0.20-1.00
镍铬钼无限冷硬离心复合Ⅴ	ICⅤ	2.90-3.60	0.60-1.50	0.40-1.00	≤0.10	≤0.05	301-4.80	1.00-2.00	0.20-2.00

2、物理性能

代码	辊身硬度（HSD）	辊颈硬度（HSD）	抗拉强度（MPa）
CCⅢ	65--80	32--45	≥350
CCⅣ	70—85	32--45	≥350
ICⅢ	65—78	32--45	≥350
ICⅣ	70—83	32--45	≥350
ICⅤ	77--85	32--45	≥350

3、应用范围
小型型钢、线材、热轧薄板平整轧机；中厚板、平整热带钢轧机