Wear Liners Ni Hard Casting / Mill Door For Mine Mill , Wear Resistant
Ni-hard4 Wear-resistant Plates Made in China
A. The hardness of this Ni-hard castings is more than HRC57.
B. Hardness: HRC52~58.
C. International Standard: AS 2027-2002/Ni hard 4.
D. Microstructure: Eutectic Carbide + Martensite + Residual Austenite
E. Specific weight or density: 7.3~7.5g/mm2
F. Break Point: 25~40kg/mm2.
G. Our materials conform toGB/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.
The general advantages in ball mills are as follows:
| Output Increased | 5~20% |
| Power Consumption Reduced | 5~20% |
| Maintenance Decreased | Above 98% |
| The liners are easily installed and existing mills need no modification. |
The additional advantages in cement mills are as follows:
| No leakage of slurry |
| No repairs during service periods |
| Better reliability and stability |
| Production Improvement |
| Noise reduction |
Materials 1: Double-Media Quenching Chromium-Molybdenum Alloy Steel Series
We specially design the material for ball mill liners in mines, coalfired power plants and cement plants,
etc.. With our special doublemedia quenching process, the material can not only achieve ideal hardness
(HRC48~55) but also ideal toughness value (AK30~100J). It can completely meet the requirement of liners
of large and middlesize ball mills at home and abroad. The match of Middle Chrome Liners and High Chrome
Cast Balls has been the typical model in coal mills and cement mills. Meanwhile, the material is applicable to the teeth plates, armored plates and hammers of crushers and excavator bucket teeth.
Materials 2: Pearlitic Chromium-Molybdenum Alloy Steel Series
The Pearlitic Chromium-Molybdenum Alloy Steel Liners are widely used in AG Mill,SAG Mill and Ball Mills.
Hardness: HB310-375 (equivalent to HRC33-42)
Impact resistant Value: Ak≥60J (60×10×10mm) in normal ambient temperature.
We can produce pearlitic Cr-Mo steel as per AS2074 Gr. L / 2B.
Materials 3 : High Chrome White Iron Series
High Chrome white iron we can produce include 15%Cr, 18%Cr, 20%Cr and 26Cr. Under same working
condition,the wear performance of High Chrome mill liners is four times of that of high manganese steel
liners and twice of that of low Chrome alloy steel liners.Meanwhile, we can produce high Chrome castings
as per AS2027, ASTM A532 and BS4844.Customer-made Mill Liners
Technical Parameters
Wuxi Orient Anti-wear Engineering Co., Ltd.
Chemical Composition & Mechanical Property of Wear-resistant Castings
| 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 Manganese Steel | Ni-Hard cast iron |
| C | 0.30~0.50 | 0.65~0.90 | 0.40~0.90 | 2.40~3.20 | 1.1~2.2 | 0.90~1.30 | 2.40~3.60 |
| Si | 0.50~1.20 | ≤0.75 | 0.70~1.20 | 0.60~1.20 | 0.60~1.20 | ≤0.08 | ≤0.80 |
| Mn | 0.40~1.20 | 0.50~1.20 | 0.60~1.00 | 0.50~1.00 | 0.50~1.00 | 11.00~18.00 | ≤2.0 |
| Cr | 1.70~2.50 | 1.50~2.50 | 4.00~7.00 | 12.00~30.00 | 11.00~30.00 | 1.50~2.50 | 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 | ≤0.5 | 0.10~3.0 | 0.10~3.0 | ≤1.0 | ≤0.10 |
| Cu | 0.10~0.60 | ≤0.25 | 0.20~0.40 | 0.10~1.00 | 0.10~1.00 | - | - |
| Ni | ≤0.50 | ≤0.30 | 0~0.30 | 0~0.30 | 0~0.30 | - | 3.3~10 |
| Re | ≤0.02 | ≤0.02 | ≤0.02 | - | - | - | - |
| Equivalent Specifications | DL/T 681-1999 GB/T26651-2011 | AS 2074 L2B Mod | DL/T 681-1999 | GB/T 8263-1999 AS 2027 Cr27 AS 2027 CrMo 15/3 AS 2027 CrMo 20/2/1 ASTM A532 Class III type A 25% Cr ASTM A532Class II type B 15% Cr-Mo BS 4844 3E DIN1695 NFA32401. | GB/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 Steel | Martensite or Pearlitic Cr Mo Steel | Martensite Steel | Martensite matrix | Austenitic Mn Steel | - |
| Hardness | HRc≥48 | HB470 & HB 321~370 | HRc≥50 | HRc≥56 | HB≤300 | HRc≥56 |
| Impact Value | Ak≥40J | - | Ak≥10J | Ak≥4J | Ak≥80J | - |
The Combined Self-fastened Boltless Ball Mill Liners
This product,invented by Mr. Chen Changshun,senior engineer and the director of the company, is known as “China Best Liner”.
It includes two parts,high wear resistance boltless plates,and highly expandable riveting plates,
which are self-fastened and strengthened to withstand impact from mill balls.
We possess famous patented product------
Combined Self-fastened (Boltless) Ball Mill Liners,or Called CHINA BEST LINER.
In 2012,we registered a new patent about Liner Technology.
In December of 2000,we successfully registered the international patent in Canada.
In 1988 and 1997,we claimed domestic patents for ball mill liners .
The outstanding advantage of our liners is boltless.
