Dia 20-150mm Cast Iron Steel Balls

• Material: Iron
• Content: 100%
• Usage: Mine, Cement Plant, Power Station
• Processing Type: Forging and Casting
• Size: 20-150mm
• Color: Metallochrome
• Model NO.: high/Medium/Low chrome
• Customized: Customized
• Raw Material Heating: by Electric Furance
• Certification: ISO9001:2008
• Transport Package: Container Bag, Steel Drum
• Trademark: Jinan zhongwei
• Origin: Shandong Jinan
• Production Capacity: 1000000

Product Description

            Dia 20-150mm cast iron steel balls

Type and chemical composition of forged grinding balls


Material
Chemical elements
Hardness

Name	Material	Chemical elements						Hardness
		C	Si	Mn	S	P	Cr	HRC
Cast iron ball	Special cr1	2.0-3.0	<1.0	0.5-2.0	≤0.06	≤0.06	>20	58-64
	Special cr2	2.0-3.0	<1.0	0.5-2.0	≤0.06	≤0.06	>15	58-64
	High Cr	2.0-3.2	<1.0	0.5-2.5	≤0.06	≤0.06	>10	58-62
	Medium Cr	2.0-3.2	<1.0	0.5-2.5	≤0.06	≤0.06	≥5	48-55
	Low Cr	2.2-3.4	≤1.2	0.5-1.5	≤0.06	≤0.06	1.0-1.5	42-46

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