• Model NO.：45#, 60MN, B2, B3
• Customized：Customized
• Raw Material Heating：by Electric Furance
• Heat Treatment Method：Oil,Air Quenching
• Certification：ISO9001:2008
• Transport Package：Container Bag, Steel Drum
• Specification：20-150mm
• Trademark：Jinan zhongwei
• Origin：Shandong Jinan
• HS Code：73261100
• Production Capacity：1000000

Name 
MaterialChemical elementsHardnessCSiMnSPCrHRC
  
 
 
Cast iron ballSpecial cr12.0-3.0<1.00.5-2.0≤0.06≤0.08>2058-64Special cr22.0-3.0<1.00.5-2.0≤0.06≤0.08>1558-64High Cr2.0-3.2<1.00.5-2.5≤0.06≤0.08>1058-62Medium Cr2.0-3.2<1.00.5-2.5≤0.06≤0.08≥545-48Low Cr2.2-3.4≤1.20.5-1.5≤0.06≤0.081.0-1.542-46
Weight of Cast Iron Balls
 

(mm) Nominal diameter	(mm) Diametrical Tolerance	(kg) Approx weight     per ball	Average number per MT
20	+1,-0.5	0.033	30303
25	+1,-0.5	0.064	15635
30	+2.0,-1.0	0.11	9090
40	+2.0,-1.0	0.261	3831
50	+2.0,-1.0	0.510	1961
60	+2.0,-1.0	0.883	1132
70	+3.0,-1.5	1.402	713
80	+3.0,-1.5	2.092	478
90	+3.0,-1.5	2.98	335
100	+3.0,-1.5	4.087	244
110	+3.0,-1.5	5.44	183
120	+3.0,-1.5	7.062	141

Packing
Steel drum (800-950kg per drum) &Container Bag (1000kg per bag) 
 
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Because we know that good service and products cost effective is the most important magic weapon of maintaince of the old customer.

Because we know that to look for a new customer is far difficult than maintaince old customer.

With a cooperation win all life cooperation.