Heat Treatment Ni Hard Liners Quenching and Tempering Hardness More Than HRC48
Product Specification
1. Material:Ni-hard Cast Iron
2. Hardness:More than HRC48
3. MOQ:2tons
4. Application:Mining Insustry
5. Feature:AK≥60
6. Dimensions:As per drawing
7. Package: Steel Pallets
We specially design the material for cement mill liners ,Which includes boltless liners,shell liners,
grate plates ,end liners etc..
The material can not only achieve ideal hardness (more than HRC48) but also ideal toughness
value (AK30~100J).
The liners are more reliable and safer than normal liners, it also can save the cost.We can produce cement mill liners as per the drawings of customers.
Chemical Composition
Chemical Composition | C | Si | Mn | Cr | Mo | Ni | P&S | Hardness |
Ni-hard Cast Iron | 2.8-3.2 | 1.5-2.2 | 0.2-0.8 | 8.0-10.0 | ≤0.5 | 4.0-5.5 | ≤0.06 | ≥HRC48 |
Production Facilities
1T,1.5T,3T,5T,12T,15T
Induction Electrical Furnace Heat Treatment Electrical Furnace
Inspection Facilities
Spectrometer Portable Hardness Tester
UT Test Electronic Metallographic Microscope
Technical Parameters
Item | Cr-Mo | Cr-Mo | Cr-Mo | High Cr white iron | High Cr Alloy Steel | High Manganese Steel | Ni-Hard cast iron |
Alloy Steel I | Alloy Steel II | Alloy Steel III | |||||
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 | DL/T 681-1999 | AS 2074 L2B Mod | DL/T 681-1999 | GB/T 8263-1999 | GB/T 5680-1998 | GB/T 8263-1999 | |
Specifications | AS 2027 Cr27 | DL/T 681-1999 | AS 2027/Ni-Cr1-550 | ||||
GB/T26651-2011 | AS 2027 CrMo 15/3 | JIS G 5153-1999 | AS 2027/Ni-Cr2-500 | ||||
AS 2027 CrMo 20/2/1 | ASTM A 128 | AS 2027/Ni-Cr4-500 | |||||
ASTM A532 Class III type A 25% Cr | DIN GX120Mn12 | AS 2027/Ni-Cr4-600 | |||||
ASTM A532Class II type B 15% Cr-Mo | AFNOR:Z120Mn12 | AS 2027/Ni-Cr4-630 | |||||
BS 4844 3E | ASTM A 532 1-A,B,C,D | ||||||
DIN1695 | ASTM A 532 2-A,B,C,D,E | ||||||
NFA32401. | ASTM A 532 3-A | ||||||
Material Type | Martensite Steel | Martensite or | Martensite Steel | Martensite matrix | Austenitic Mn Steel | - | |
Pearlitic Cr Mo Steel | |||||||
Hardness | HRc≥48 | HB470 & | HRc≥50 | HRc≥56 | HB≤300 | HRc≥56 | |
HB 321~370 | |||||||
Impact Value | Ak≥40J | - | Ak≥10J | Ak≥4J | Ak≥80J | - |
Our Services
We supply the following services:
1. Production of qualified wear and heat castings;
2. Design and installation of the boltless mill liners;
3. Consulting service of material selection of the mill liners under specific working condition to
achieve longer service life;
4. Consulting service of production & fineness improvement of grinding mills.
5. We can provide OEM/ODM for our clients.