Rolled and Forged Grinding Steel Ball 20mm to 160mm for Mining and Cement Mill

• Customization: Available
• Material: Iron
• Content: 100%
• Model NO.: 45#, 60MN, B2
• Processing Type: Forging and Casting
• Size: 20-150mm
• Color: Metallochrome
• Customized: Customized
• Raw Material Heating: by Electric Furance
• Heat Treatment Method: Oil/Air Quenching
• Certification: ISO9001:2008
• Transport Package: Container Bag, Steel Drum
• Specification: Dia 20-150mm
• Trademark: Jinan zhongwei
• Origin: Shandong Jinan
• HS Code: 73261100
• Production Capacity: 1000000

Product Description

Rolled and forged grinding steel ball 20mm to 160mm for mining


Foged steel balls chemical elements
 

Material	Chemical elements
	C	Si	Mn	P/S	Cr
B2	0.72-0.85	0.17-0.37	0.7-1.0	<0.04	0.4-0.6
60Mn	0.55-0.65	0.17-0.37	0.7-1.0	<0.04	<0.25
45#	0.42-0.50	0.17-0.37	0.5-0.8	<0.035	≤0.25
B3	0.58-0.66	1.6-1.9	0.65-0.8	<0.025	0.7-0.9

Hardness
 

Material	25mm-50mm HRC		60mm-90mm HRC		100mm-125mm HRC
	Surface	Core	Surface	Core	Surface	Core
B2	60-65	58-62	58-63	50-55	56-60	40-45
60Mn	58-63	55-60	58-63	40-45	56-60	30-35
45#	55-58	45-55	55-58	30-35	50-55	25-30
B3					58-62	56-60

Production Line
1) Traditional Forged 

Raw material →Cutting →Heating → Water quenching → Tempering

2) Auto Hot Rolling

Raw material →Hot Rolling Mill → Water Quenching → Tempering

Packing

1000kgs in a bag or 850-900kgs in a steel drum, then 25 tons in a 20GP Container


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