Casting Grinding Media Ball Made in China

• 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
• Specification: SGS ISO9001: 2008
• Trademark: Jinan zhongwei
• Origin: Shandong Jinan
• HS Code: 73261100
• Production Capacity: 1000000

Product Description

Specification:
1) No deformation 
2) High hardness Good wear resistant 
3) Size:Dia20mm-150mm
4) Breakage<1%
5) Certification: ISO9001,SGS.
 
Production Description 

1) Traditional Forged 

Raw material →Cutting  →Heating  → Water quenching  → Tempering


2) Auto Hot Rolling
 
 Raw material  →Hot Rolling Mill  → Water Quenching  → Tempering


Chemcial Elements and Hardness

Material	Chemical elements						Hardness
	C	Si	Mn	S	P	Cr	HRC
Special Cr1	2.0-3.0	<1.0	0.5-2.0	≤0.06	≤0.08	>20	58-64
Special Cr2	2.0-3.0	<1.0	0.5-2.0	≤0.06	≤0.08	>15	58-64
High Cr	2.0-3.2	<1.0	0.5-2.5	≤0.06	≤0.08	>10	58-62
Medium Cr	2.0-3.2	<1.0	0.5-2.5	≤0.06	≤0.08	≥5	45-48
Low Cr	2.2-3.4	≤1.2	0.5-1.5	≤0.06	≤0.08	1.0-1.5	42-46

 

Physical Property & Microstructure
Name	HRC	Ak(J/cm 2 )	Microstructure	Times of Falling Balls
Low Cr Balls	≥45	≥2.5	P+C	≥10000
Medium Cr Balls	≥48	≥3.0	P+C	≤Φ80	≥15000
				≥Φ80	≥10000
High Cr Balls	≥58	≥4	M+C+A	≤Φ80	≥15000
				≥Φ80	≥10000
M-Martensite     P-Pearliet     C-Carbide    A-Austenite

   

Size(mm)	Weight(kg/pc)	Quantity(pc/t)		Size(mm)	Weight(kg/pc)	Quantity(pc/t)
Φ30	0.11	9091		Φ90	2.90	345
Φ40	0.25	3891		Φ100	4.00	250
Φ50	0.50	2000		Φ110	5.30	188
Φ60	0.86	1153		Φ120	6.80	147
Φ70	1.37	729		Φ130	7.70	129
Φ80	2.05	487		Φ140	8.74	114

QC&QI
1) Raw material: Size, Chemcial elements, Microstructure quality control (LAIWU STEEL)
2) Production Technical: Cutting Size, Heating Temperature, Quenching Technical,       Tempering control.
3) Grinding Balls: Hardness, Size, Chemcial elements, Breakage Rate Checking
4) Thrid-Pary: SGS, BV ISO, TUV, COTECNA, AsiaInspection etc.
Long-term cooperation is our goal with every customer.

Advantage
1. Jinan Zhongwei has 16 years production and exporting experience.

2.We keep continuous adjustment and improvement in production according to the customer's requirement at the last 10 years.

3.On the basis of satisfied customer's 50,000 tons/year demand, Jinan Zhongwei has more 30,000 - 50,000 tons/year production capacity for the new cooperative partner.

4.Stable price system - 12 months price validity

5.Payment terms ( Negotiate)