zhangqiu huafu forging factory is manufacturer and exporter,the main products are forged ball,cast ball,steel cylpebs,steel rod.etc.

 

1.Specification

 

1.About the product:

 a.The Material: The high quality Alloy Steel Material

 b.The Export Quantity: 150,000 Metric Tons yearly

  c.HF Forging Factory Grinding ball passed through the certificate of TUV ISO 9001

 d.Available size (in mm): DIA20-DIA150

 e.Characteristics:high hardness,good wear resistance,no breakage,even wearing

 

 

Nominal diameter(mm)	20	25	30	40	50	60	70	80	90	100	110	120	130	140	150
Diameter deviation(mm)	+1,-1		+2,-2				+3,-2			+4,-3			+5,-4
circular degree(%)	<1		<2				<3			<4			<5

  2.The types

 

 

 

3.Steel ball mechanical performance index

Steel type	Nominal diameter(mm)	Impact test AK.J/Square meters	Balls impact fatigue life times (drop times from the drop machine)	HRC
				Surface	Cores
	90max	15J min	≥12000	≥50	≥42
	90min
metallographic structure	martensite		A few bainite	Secondary carbide

4.Technique Data(ball consumation for grinding l ton ore, 

Type	Small ball mill	Medium ball mill	Large ball mill
	Φ1.2m-Φ2.5m	Φ3.2m-Φ4.5m	Φ5.2m-Φ6.5m
Nonferrous metal	0.55-0.65	0.40-0.45	0.35-0.45
Colorless metallic ore	0.60-0.70	0.45-0.50	0.35-0.45
Cement grinding cement	0.050-0.055	0.035-0.040	0.025-0.030
Grinding coal power plant	0.08-0.09	0.07-0.08	0.04-0.05

5.Package:a.Dia .20mm-dia.150mm  1000kg per bags  24bags max for the 20foot container

b.Dia.130mm-dia. 150mm 800kg per drum  30drums max for the 20foot container

Dia. 50mm-dia .127mm  850kg per drum   28drums max for the 20footcontainer

Dia. 20mm-dia .40mm   900kg per drum   26drums max for the 20foot container

Dimensions dia 55cm*88cm  Volume 0.23cubic meter  tare 15 kgs/teel drum
 

 

NAME	C	SI	Mn	Cr	Mo	Cu	P	S
High chrome alloyedcasting bars	1.7-3.2	≤ 1.2	1.0-2.0	10-15	≤2	≤ 1	≤ 0.08	≤ 0.10
Low chrome alloyed casting bars	1.7-3.5	0.5-1.5	0.3-1.0	0.3-1.5	0-0.6	0-0.6	≤ 0.15	≤ 0.15

NAME	C	SI	Mn	Cr	Mo	Cu	P	S
High chrome alloyedcasting bars	1.7-3.2	≤ 1.2	1.0-2.0	10-15	≤2	≤ 1	≤ 0.08	≤ 0.10
Low chrome alloyed casting bars	1.7-3.5	0.5-1.5	0.3-1.0	0.3-1.5	0-0.6	0-0.6	≤ 0.15	≤ 0.15