Chemical Composition & Property

Chemical Composition & Property

Material	Chemical Composition
	C	Si	Mn	Cr	Ni	Mo	V	P	S
3%Cr Series	0.75-0.95	0.2-0.9	0.2-0.6	2.5-3.2	0.2-0.8	0.2-0.6	＜0.25	≤0.02	≤0.015
5%Cr Series	0.7-0.95	0.2-0.9	0.2-0.6	4.5-5.4	0.1-0.8	0.1-0.6	＜0.25	≤0.02	≤0.015

Material	Tensile Property     Mpa	Barrel Hardness HSD	Working Layer Composition	Hardening Depth mm	Roller Application
3%Cr Series	≥850	88-100	martensite+M3C (few M7C) and Ar	20-28	Single stand mill, skin pass mill, tandem mill
5%Cr Series	≥950	90-100	martensite+M7C and few Ar	30-50	Single stand mill, skin pass mill, tandem mill

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Chemical Composition & Property For BUR

Material	Chemical Composition
	C	Si	Mn	Cr	Ni	Mo	V	P	S
3%Cr Series	0.4-0.8	0.3-0.7	0.4-0.8	4.5-5.5	0.2-0.8	0.3-0.8	＜0.25	≤0.015	≤0.015
5%Cr Series	0.4-0.65	0.2-0.6	0.4-0.8	2.0-3.0	0.2-0.8	0.3-0.7	＜0.25	≤0.015	≤0.015

Material	Tensile Property     Mpa	Barrel Hardness HSD	Working Layer Composition	Hardening Depth mm	Roller Application
3%Cr Series	≥880	50-65	Martensite  (bainite) + Carbide	40-60	Single stand mill, Cold & Hot rolling tandem mill
5%Cr Series	≥950	55-80	Martensite  (bainite) + Carbide	50-100	Single stand mill, Cold & Hot rolling tandem mill