Product Details

Specifications

1.Even hardness
2.Size:20-150mm
3.ISO9001:2008
4.No breakable

Casting Grinding Balls for cement building

1.Specifications

    High hardness
    Good wear resistance
    High toughness
    No mal-roundness

The process line of production

RAW MATERIAL→SCIENTIFIC PROPORTIONING → ELECTRIC FURNACE SMELTING → ASSAY BEFORE FURNACE → MOULD FORMING → POLISHING → HEAT TREATMENT → PACKING → TRANSPORTATION

Type and Chemical Composition of Chrome Grinding Ball

Name	Material	C	Si	Cr	Mn	S	P
DZ-7	Cr-22-32%	2.0-2.8	≤1.0	22-32	0.5-2.0	≤0.06	≤0.08
DZ-8	Cr-17-22%	2.0-2.8	≤1.0	17-22	0.5-2.0	≤0.06	≤0.08
DZ-9	Cr-15-17%	2.2-3.0	≤1.0	15-17	0.5-2.0	≤0.06	≤0.08
DZ-10	Cr-11-14%	2.2-3.2	≤1.0	11-14	0.5-2.5	≤0.06	≤0.08
DZ-11	Cr-5-10%	2.1-3.2	≤1.2	5-10	0.5-1.5	≤0.06	≤0.08
DZ-12	Cr-1.5-3.%	2.2-3.5	≤1.2	1.5-3.0	0.5-1.5	≤0.06	≤0.08

Name	Designation	Chemical Composition(%)
Name	Designation	C	Si		Mn	Cr	Mo	Cu	Ni	P	S
Higher Chrome Casting iron Balls	JCCr20	2.0-3.0	≤1.0		0.5-1.5	18-22	0-2.5	0-1.2	0-1.5	≤0.10	≤0.10
Higher Chrome Casting iron Balls	JCCr15	2.0-3.0	≤1.0		0.5-1.5	14-17	0-3.0	0-1.0	0-1.5	≤0.10	≤0.10
High Chrome Casting iron Balls	JCCr13	2.0-3.0	≤1.0		0.5-1.5	11-14	0-1.0	0-2.0	0-1.5	≤0.10	≤0.10
Middle Chrome Casting iron Balls	JCCr7	2.1-3.2	0.5-2.2		0.5-1.5	6-10	0-1.0	0-0.8	0-1.5	≤0.10	≤0.10
Low Chrome Casting iron Balls	JCCr2	2.2-3.6	≤1.2		0.5-1.5	1.0-3.0	0-1.0	0-0.8	_	≤0.10	≤0.10
Name	Designation	Hardness(HRC)			AK(j/cm²)	Microstructure	Times of Falling Balls
Name	Designation	Quenched		Unquenched	AK(j/cm²)	Microstructure	Times of Falling Balls
High Chrome Casting iron Balls	JCCr20	≥56		≥45	≥4.0	M+C	≥8000
High Chrome Casting iron Balls	JCCr15	≥56		≥45	≥4.0		≥8000
High Chrome Casting iron Balls	JCCr13	≥56		≥49	≥4.0		≥8000
Middle Chrome Casting iron Balls	JCCr7	_		≥48	≥4.0		≥8000
Low Chrome Casting iron Balls	JCCr2	_		≥45	≥4.0		≥8000