Description
High Cr Cast Iron Grinding Mill Liners
- Material: High Cr Cast Iron
- Hardness: ≥HRC55
- Impact Value: More than AK10J
- Application: Mining Industry
- MOQ: 2 tons
- Impact value: ≥5J
- Heat treatment Process: quenching & tempering treatment to achieve higher hardness and ideal impact value.
- Service Life: 1st Chamber: about 2 years; 2nd Chamber: about 4 years.
We’d like to help select suitable material grade for your Grinding Mill Liners as per your specific working condition.
High Cr white iron material possess a combination of superior abrasion resistance and a reasonable degree of toughness.
The high Cr castings have longer service life than the other material, such as High Mn steel and Cr-Mo alloy steel. And now it is widely used in the working condition of high wear and low impact, such as dry grinding process, coal mills, cement mills due to its excellent performance.
Chemistry Standard for Grinding Mill Liners :
| ISO 21988/JN/ | HBW | C | Si | Mn | P | s | Cr | Ni | Mo | Cu |
| HBW555XCr13 | ≤555 | 1.8-3.6 | ≤1 | 0.5-1.5 | ≤0.08 | ≤0.08 | 12-16 | ≤2 | ≤3 | ≤1.2 |
| HBW555XCr16 | ≤555 | 1.8-3.6 | ≤1 | 0.5-1.5 | ≤0.08 | ≤0.08 | 14-18 | ≤2 | ≤3 | ≤1.2 |
| HBW555XCr21 | ≤555 | 1.8-3.6 | ≤1 | 0.5-1.5 | ≤0.08 | ≤0.08 | 18-23 | ≤2 | ≤3 | ≤1.2 |
| HBW555XCr27 | ≤555 | 1.8-3.6 | ≤1 | 0.5-1.5 | ≤0.08 | ≤0.08 | 23-30 | ≤2 | ≤3 | ≤1.2 |
| HBW600XCr35 | ≤600 | 3.0-5.5 | ≤1 | 1.0-3.0 | ≤0.06 | ≤0.06 | 30-40 | ≤1 | ≤1.5 | ≤1.2 |
| HBW600XCr20Mo2Cu | ≤600 | 3.0-5.5 | ≤1 | ≤1 | ≤0.06 | ≤0.06 | 18-21 | ≤1 | 1.4-2.0 | 0.8-1.2 |
Our Photos for High Cr Cast Iron Grinding Mill Liners:
| Item | High Cr White Iron | High Cr Alloy Steel | High Mn Steel | Ni-hard Cast Iron |
| C | 2.4-3.2 | 1.1-2.2 | 0.9-1.3 | 2.4-3.6 |
| Si | 0.6-1.2 | 0.6-1.2 | ≤0.8 | ≤0.8 |
| Mn | 0.5-1.0 | 0.5-1.0 | 11.0-18.0 | ≤2.0 |
| Cr | 12.0-30.0 | 11.0-30.0 | 1.5-2.5 | 1.5-10 |
| S | ≤0.04 | ≤0.04 | ≤0.04 | ≤0.15 |
| P | ≤0.06 | ≤0.06 | ≤0.06 | ≤0.15 |
| Mo | 0.1-3.0 | 0.1-3.0 | ≤1.0 | ≤0.1 |
| Cu | 0.1-1.0 | 0.1-1.0 | – | – |
| Ni | 0-0.3 | 0-0.3 | – | 3.3-10 |
| Re | – | – | – | – |
| Equivalent | GB/T8263-1999 | GB/T5680-1998 | GB/T8263-1999 | |
| Specification | AS2027 Cr27 | DL/T 681-1999 | AS2027/Ni-Cr1-550 | |
| AS2027 CrMo 15/3 | JIS G 5153-1999 | AS2027/Ni-Cr2-500 | ||
| AS2027 CrMo 20/2/1 | ASTM A128 | AS2027/Ni-Cr4-500 | ||
| ASTM A532 Class Ⅲ Type A 25%Cr | DIN GX120Mn12 | AS2027/Ni-Cr4-600 | ||
| ASTM A532 Class Ⅱ Type B 15%Cr-Mo | AFNORZ120Mn12 | AS2027/Ni-Cr4-630 | ||
| BS 4844 3E | ASTM A532 1-A,B,C,D | |||
| DIN1695 | ASTM A532 2-A,B,C,D,E | |||
| NFA32401 | ASTM A532 3-A | |||
| Material Type | Martensite Matrix | Austenitic Mn Steel | – | |
| Hardness | HRC≥56 | HB≤300 | HRC≥56 | |
| Impact Value | AK≥4J | AK≥80J |