
Why choose Jinan Zhongwei grinding rods :
· Quality Management System certified ISO 9001:2008.
· Environmental management system certified ISO 14001.
· Occupational health and safety management systems certified OHSAS 18001.
· We use the highest quality bar stock available, made with "clean steel" technology.
· Rigidly managed forging process ensuring spherical ball shape.
· High end heat treatment technology, based on Jinan Zhongwei’s years of metallurgical experience guaranteeing long wear life.
· Logistics is a key part of Jinan Zhongwei grinding media offer:
grinding rods for rod mill
Diameter | Length | Surface hardness | Impact test | Tensile strength |
(mm) | (m) | (HRC) | (Ak) | (Mpa/mm²) |
Φ30-140 | 2m-7m | 45-55 | ≥12j/cm2 | ≥1000 |
Chemical Composition
Type | Chemical components | |||||
C | Mn | Si | Cr | S | P | |
45# | 0.42-0.50 | 0.50-0.8 | 0.17-0.37 | ≤0.25 | ≤0.045 | ≤0.040 |
50Mn | 0.48-0.56 | 0.70-1.0 | 0.17-0.37 | ≤0.25 | ≤0.035 | ≤0.035 |
60Mn | 0.57-0.65 | 0.70-1.0 | 0.17-0.37 | ≤0.25 | ≤0.035 | ≤0.035 |
65Mn | 0.60-0.70 | 0.90-1.2 | 0.17-0.37 | ≤0.25 | ≤0.035 | ≤0.035 |
B2 | 0.75-0.85 | 0.70-0.9 | 0.17-0.37 | 0.5-0.8 | ≤0.030 | ≤0.030 |
Diameter (MM) | Cross Sectional Area (MM2) | Theorectical Weight (KG/M) | Weight of 12M Bar (KG) | A Ton Contains 12M Bars (PCS) |
6 | 28.27 | 0.222 | 2.664 | 375.38 |
8 | 50.27 | 0.395 | 4.74 | 210.97 |
10 | 78.54 | 0.617 | 7.404 | 135.06 |
12 | 113.1 | 0.888 | 10.656 | 93.84 |
14 | 153.9 | 1.21 | 14.52 | 68.87 |
16 | 201.1 | 1.58 | 18.96 | 52.74 |
18 | 254.5 | 2 | 24 | 41.67 |
20 | 314.2 | 2.47 | 29.64 | 33.74 |
22 | 380.1 | 2.98 | 35.76 | 27.96 |
25 | 490.9 | 3.85 | 46.2 | 21.65 |
28 | 615.8 | 4.83 | 57.96 | 17.25 |
32 | 804.2 | 6.31 | 75.72 | 13.21 |
36 | 1018 | 7.99 | 98.88 | 10.43 |
40 | 1257 | 9.87 | 118.44 | 8.44 |
Application:
Packing: In bundles and 20 foot container
Shipping: Port of loading:Qingdao Port,China
Delivery time : Normally 2-3 weeks after down payment received.
Partial shippment allowed
Payment terms : T/T (30% DP,balance against copy of B/L.; L/C
Samples : Free samples are provided for test before trial order
MOQ : 20 Ton
Jinan Zhongwei Casting And Forging Grinding Ball Co.,Ltd
Established in 2000, We Jinan Zhongwei casting and forging grinding ball Co.,Ltd, are leading manufacturer and professional exporter of grinding media balls in China. with the annual output of 50,000 to 70,000 metric tons. Our products grinding media balls are mainly exported to more than 20 countries and regions in the world, such as Japan, Korea, South Africa, Zambia, Malaysia, Philippines, Indonesia, Mongolia, Australia, UAE, Chile etc.
Our main products are forging grinding steel balls, hot rolling balls, and (high,medium,low) chrome alloyed casting iron balls, casting cylpebs, grinding rods.
Casting quality with strength, Forging glory with integrity. Insisting on the theory of "Quality first, Credit Goal, and Mutual Profits". We are trying best to supply customers with high quality products and satisfactory service.
We sincerely welcome customers from both at home and abroad to our factory for on-site inspections!
Our brochure