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1.Hardness: more than HRC58
2.Capacity increase
3.Size check: by steel templates
4.Internal quality check: by UT tester
Technical Parameters
| 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 | ≤0.30 |
| Re | ≤0.02 | ≤0.02 | ≤0.02 |
| Equivalent Specifications |
DL/T 681-1999 GB/T26651-2011 |
AS 2074 L2B Mod |
DL/T681-1999 |
| Material Type | Martensite Steel | Martensite or Pearlitic Cr Mo Steel |
Martensite Steel |
| Hardness | HRc≥48 | HB470& HB321-370 |
HRc≥50 |
| Impact Value | AK≥40J | - | AK≥10J |
| Item |
High Cr white iron |
High Cr Alloy Steel |
High Manganese Steel |
Ni-Hard cast iron |
| C | 2.40-3.20 | 1.1-2.2 | 0.90-1.30 | 2.40-3.60 |
| Si | 0.60-1.20 | 0.60-1.20 | ≤0.08 | ≤0.08 |
| Mn | 0.50-1.00 | 0.50-1.00 | 11.00-18.00 | ≤2.0 |
| Cr | 12.00-30.00 | 11.00-30.00 | 1.50-2.20 | 1.5-10.0 |
| S | ≤0.04 | ≤0.04 | ≤0.04 | ≤0.15 |
| P | ≤0.06 | ≤0.06 | ≤0.06 | ≤0.15 |
| Mo | 0.10-0.30 | 0.10-0.30 | ≤1.0 | ≤0.10 |
| Cu | 0.10-1.00 | 0.10-1.00 | - | - |
| Ni | 0-0.30 | 0-0.30 | - | 3.3-10.0 |
| Re | - | - | - | - |
| Equivalent Specifications |
GB/T 8263-1999 AS 2027 Cr27 AS 2027 CrMo15/3 AS 2027 CrMo20/2/1 ASTM A532 Class III type A25%Cr ASTM A532 Class II type B15%Cr-Mo BS 4844 3E DIN1695 NFA32401 |
BG/T 5680-1998 DL/T 681-1999 JIS G 5153-1999 ASTM A 128 DIN GX120Mn12 AFNOR:Z120Mn12 |
GB/T 8263-1999 AS 2027/Ni-Cr1-550 AS 2027/Ni-Cr2-500 AS 2027/Ni-Cr4-500 AS 2027/Ni-Cr4-600 AS 2027/Ni-Cr4-630 ASTM A 532 1-A,B,C,D ASTM A 532 2-A,B,C,D,E ASTM A 532 3-A |
|
| Material Type | Martensite matrix | Austenitic Mn Steel | - | |
| Hardness | HRc≥56 | HB≤300 | HRc≥56 | |
| Impact Value | AK≥4J | AK≥80J | - |
Boltless Mill Liners for Grinding Fine CaCO3 Powder Description:
In 1994, we designed the first super fine powder pulverizing ball mill production line and the boltless ball mill liners applicable to the super fine pulverizing field in China, which can achieve ideal output on the fineness of finished products with 2μm∼90μm.
In Φ2.2 x 6m ball mill, the capacity is 3.2mt per hour on 2μm∼10μm, which has achieved leading level at home and abroad.
In 2000, we designed the first set of the boltless liners applied in a super fine powder vibrating mill in China.
In 2003, we designed and manufactured ball mill liners used in the largest super fine powder ball mills for Anhui Guofeng Nonmetal Hi-tech Material Co.(Jiuhua Calcium Co.) in China.
Ball mill super fine powder pulverizing process mainly relies on liners.
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