Low Carbon Cr-Mo Alloy Steel Castings Application For Mine Mill / Ball Mill
1. Hardness difference from surface to center is less than HRC2.
2. The steel liners have higher reliability in AG mills and SAG mills.
3. The Pearlitic Cr-Mo Alloy Steel mill liners are widely used for AG mills, SAG mills, large ball mills.
4. Impact value:AK≥100J.
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
|
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.
|
Materials 1: Double-Media Quenching Cr-Mo Alloy Steel Series
We specially design the material for ball mill liners in mines, coalfired power plants and cement plants, etc.. With our
special double-media 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 middle-size 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 Cr-Mo 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.
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
|
-
|
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------
