• 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

Chemical elements Hardness CSiMnSPCr
HRC
 Special 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 
Physical Property & MicrostructureNameHRCAk(J/cm 2 )MicrostructureTimes of Falling BallsLow Cr Balls≥45≥2.5P+C≥10000Medium Cr Balls≥48≥3.0P+C≤Φ80≥15000≥Φ80≥10000High Cr Balls≥58≥4M+C+A≤Φ80≥15000≥Φ80≥10000M-Martensite     P-Pearliet     C-Carbide    A-Austenite
   
 Size(mm)Weight(kg/pc)Quantity(pc/t)Φ300.119091Φ902.90345Φ400.253891Φ1004.00250Φ500.502000Φ1105.30188Φ600.861153Φ1206.80147Φ701.37729Φ1307.70129Φ802.05487Φ1408.74114
 
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)