Jinan Zhongwei Casting And Forging Grinding Ball Co.,Ltd
Jinan Zhongwei Casting And Forging Grinding Ball Co.,Ltd 18 Years focus on development and production of grinding media Casting quality with strength, Forging glory with integrity
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1) No deformation
2) High hardness Good wear resistant
3) Size:Dia12mm-150mm
4) Breakage<1%
5) Certification: ISO9001,SGS.
Grinding steel balls are a main tool for grinding materials, usually used in ball mills. Grinding steel balls produce abrasive effects through collision and friction with materials, thereby achieving the grinding effect of materials
Forged Ball Details:
1.Tthe broken rate of less than 0.5%, crush resistance is generally cast ball more than 10 times.
2.The impact toughness of high impact toughness than 18J/cm2: 8 meters, more than 20000 times of falling ball experiment.
3.The high hardness, the surface hardness of 55-68HRC, volume of hardness of 57-64HRC, and the average hardness gradient distribution.
4.No deformation, the ball is always not deformation, not out of roundness.
5.Compact structure, high performance-price ratio.
| Material | Chemical Elements | |||||
| C | Si | Mn | P/S | Cr | Hardness (HRC) | |
| 45# | 0.42-0.50 | 0.17-0.37 | 0.5-0.8 | <0.035 | <0.25 | 60-65 |
| 60MN | 0.55-0.65 | 0.17-0.37 | 0.7-1.0 | <0.04 | <0.25 | 58-63 |
| B2 | 0.72-0.85 | 0.17-0.37 | 0.7-1.0 | <0.04 | 0.4-0.6 | 55-58 |
| B3 | 0.58-0.66 | 1.3-1.9 | 0.65-0.8 | <0.025 | 0.7-0.9 | 56-65 |
| B6 | 0.97-1.03 | 0.2-0.3 | 1.0-1.1 | <0.025 | 0.5-0.6 | 61-65 |
|
Material
|
25mm-50mm HRC |
60mm-90mm HRC |
100mm-125mm HRC
| 130-150mm HRC | ||||
| Surface | Core | Surface | Core | Surface | Core | Surface | Core | |
| C45 | 55-58 | 55-58 | 50-68 | 23-30 | 48-52 | 22-26 | 48-52 | 22-25 |
| 60Mn | 58-62 | 55-60 | 58-62 | 30-36 | 57-61 | 26-32 | 57-61 | 26-30 |
| B2 | 60-64 | 58-64 | 57-64 | 45-60 | 55-60 | 38-48 | 55-60 | 38-42 |
| B3 | 62-65 | 60-65 | 60-65 | 58-65 | 56-65 | 50-62 | 56-63 | 50-55 |
| B6 | 62-65 | 60-65 | 61-65 | 58-65 | 60-63 | 50-62 | 61-63 | 50-55 |
1) Traditional Forged
Raw material →Cutting →Heating → Water quenching → Tempering
2) Auto Hot Rolling
Raw material →Hot Rolling Mill → Water Quenching → Tempering
3) Casting
Raw material preparation →Smelting→ Pouring→Cooling and demoulding→Heat treatment and inspection
The steel ball quality inspection process mainly includes the following steps: Appearance quality inspection: First, check the surface quality of the steel ball to observe whether there are obvious defects such as cracks, depressions, bubbles, etc. These defects will affect the performance and life of the steel ball.
Size and weight detection
Hardness test
Chemical composition analysis
Metallurgical structure analysis
Physical property test
Wear resistance test
Testing standards and items include hardness testing, appearance testing, wear resistance testing, tolerance testing, roundness testing, quality testing, composition testing, material testing, metal grade identification, chromium content testing, impact resistance testing, non-destructive testing, etc.
Q. What's the MOQ of your product?
As usual MOQ is 1TONS.Or as your require, we need to calculate the new price to you.
Q. What atandars you carring out for your products?
SAE standard and ISO9001, SGS.
Q.What’s the delivery time?
A : 5-10 work days after receiving client’s payment
Q.Do you have any timely technology supports?
A: We have a professional technology supporting team for your timely services. We prepare the technical documents for you, also you can contact us by telephone, online chat (whats, skype, phone).