Pearlitical Cr-Mo alloy steel lifting bars with 430mm long insert in the rubber
Quick Details
1. Material:Cr-Mo Alloy Steel;
2. Hardness: HRC33-43;
3. Dimension:430mm long;
4. Testing:Dimension,Hardness,Chemical composition,UT,MT;
5. Application:Mine Mill
Steel Cap Castings Description:
1. The hardness for Cr-Mo Cast Steel Castings: HRc33~42 (HB310~390);
2. Microstructure: Pearlite;
3. Chemical Composition: Every melt is analysed by Spectrometer;
4. Dimensional Checking & Gauging: 100% check as per drawings.
4-1. By visual inspection,
4-2. By gauge check.
5. Casting Soundness: Checked by UT test as per international standard.
6. Surface Finish: Visual inspection after shot blasting; To achieve an acceptable level of surface texture, freedom from defects;
7. Reporting: Providing chemical,dimensional and hardness reports.
In the recent 20 years, our liners have been widely used in large, medium and small ball mills in Chinese power generation, mining, cement, Chemical engineering and metallurgical industries and super fine pulverizing equipments. It is the only recommended liner product in the latest standard of the electric-power industry in China.
Technical Parameters
Chemical Composition & Mechanical Property of Wear-resistant Castings
| Item | Cr-Mo Alloy Steel I | Cr-Mo Alloy Steel II | Cr-Mo Alloy Steel III |
| C | 0.30~0.50 | 0.65~0.90 | 0.40~0.90 |
| Si | 0.50~1.20 | ≤0.75 | 0.70~1.20 |
| Mn | 0.40~1.20 | 0.50~1.20 | 0.60~1.00 |
| Cr | 1.70~2.50 | 1.50~2.50 | 4.00~7.00 |
| S | ≤0.04 | ≤0.06 | ≤0.04 |
| P | ≤0.04 | ≤0.06 | ≤0.06 |
| Mo | ≤0.5 | ≤0.5 | ≤0.5 |
| Cu | 0.10~0.60 | ≤0.25 | 0.20~0.40 |
| Ni | ≤0.50 | ≤0.30 | 0~0.30 |
| Re | ≤0.02 | ≤0.02 | ≤0.02 |
| Equivalent Specifications | DL/T 681-1999 GB/T26651-2011 | AS 2074 L2B Mod | DL/T 681-1999 |
| Material Type | Martensite Steel | Martensite or Pearlitic Cr Mo Steel | Martensite Steel |
| Hardness | HRc≥48 | HB470 & HB 321~370 | HRc≥50 |
| Impact Value | Ak≥40J | - | Ak≥10J |
We produce every casting with strict control procedures, must by the quality inspection department quality inspection before delivery, to ensure that each factory the quality of the products.
We can according to individualized requirements of customers. Products through scientific and strict smelting,casting,heat treatment process,greatly improving the wear resistance.
Company Strength
1. Production of qualified wear and heat castings.
2. Design and installation of the boltless mill liners.
3. Consulting service of material selection of the mill liners under specific working condition to achieve longer service life.
4. Consulting service of production & fineness improvement of grinding mills.
5.We can provide OEM/ODM for our clients.
