Cr-Mo Alloy Steel Shell Ball Mill Lining,Air Quenching Mill Liners
Quick Details
1. Internal Quality: Cr-Mo alloy steel shell liners pass UT test;
2. External Quality: Cr-Mo alloy steel shell liners pass MT test.
Cr-Mo Alloy Steel Shell Liners
The Cr-Mo Alloy Steel Shell Liners have the following features:
1. Hardness: more than HRC33-43;
2. Impact Value: about 70J;
3. Special heat-treatment process: Air quenching;
4. Internal Quality: we check the internal quality with UT test;
5. External Quality: we check the external quality with MT test & visual inspection.
Application :Mill Liners
Material :steel
Dimensions :As per drawings
Hardness :HRC33-43
Impact Value :about 70J
Hardness difference from surface to core :Less than HRC2
Technical Parameters
Item | Cr-Mo Alloy Steel Ⅰ | Cr-Mo Alloy Steel Ⅱ | Cr-Mo Alloy Steel Ⅲ | High Cr White Iron | High Cr Alloy Steel | High Mn Steel | Ni-hard Cast Iron | |
C | 0.3-0.5 | 0.65-0.90 | 0.4-0.9 | 2.4-3.2 | 1.1-2.2 | 0.9-1.3 | 2.4-3.6 | |
Si | 0.15-1.20 | ≤0.75 | 0.7-1.2 | 0.6-1.2 | 0.6-1.2 | ≤0.8 | ≤0.8 | |
Mn | 0.4-1.2 | 0.5-1.2 | 0.6-1.0 | 0.5-1.0 | 0.5-1.0 | 11.0-18.0 | ≤2.0 | |
Cr | 1.7-2.5 | 1.5-2.5 | 4.0-7.0 | 12.0-30.0 | 11.0-30.0 | 1.5-2.5 | 1.5-10 | |
S | ≤0.04 | ≤0.06 | ≤0.04 | ≤0.04 | ≤0.04 | ≤0.04 | ≤0.15 | |
P | ≤0.04 | ≤0.06 | ≤0.06 | ≤0.06 | ≤0.06 | ≤0.06 | ≤0.15 | |
Mo | ≤0.5 | ≤0.5 | ≤0.15 | 0.1-3.0 | 0.1-3.0 | ≤1.0 | ≤0.1 | |
Cu | 0.1-0.6 | ≤0.25 | 0.2-0.4 | 0.1-1.0 | 0.1-1.0 | - | - | |
Ni | ≤0.5 | ≤0.3 | 0-0.3 | 0-0.3 | 0-0.3 | - | 3.3-10 | |
Re | ≤0.02 | ≤0.02 | ≤0.02 | - | - | - | - | |
Equivalent | DL/T 681-1999 | AS2074L2B | DL/T 681-1999 | GB/T8263-1999 | GB/T5680-1998 | GB/T8263-1999 | ||
Material type | Martensite Steel | Martensite or Pearlitic Cr Mo Steel | Martensite Steel | Martensite Matrix | Austenitic Mn Steel | - | ||
Hardness | HRC≥48 | HB470&HB321-370 | HRC≥50 | HRC≥56 | HB≤300 | HRC≥56 | ||
Impact Value | AK≥40J | - | AK≥10J | AK≥4J | AK≥80J | - |