Qingzhou Dazhong Grinding Steel Ball Co., Ltd.
Qingzhou Dazhong Grinding Steel Ball Co., Ltd.
[
Shandong,
China (Mainland) ]
Shandong, China (Mainland)
sddazhong
unbreakable
Coarse
Metal
| Packaging Details: | container bags/steel drums |
|---|---|
| Delivery Detail: | within 20 days after confirm the contract |
As the raw material in producing steel balls is high quality alloy steel, we can assure the high hardness and good wear resistance of the products.
A. Unbreakable Forged Steel Grinding Ball:
1.60Mn unbreakble forged grinding ball
Diameter: 20mm-150mm
Hardness: HRC 53-62
Chemical elements:Cr: 0.25max C: 0.55-0.65 Si: 0.17-0.37 Mn: 0.7-1.0 S&P: 0.04max
2.65Mn unbreakable forged grinding ball
Diameter: 20mm-150mm
Hardness: HRC57-63
Chemical elements:Cr: 0.25max C: 0.62-0.70 Si: 0.17-0.37 Mn: 0.9-1.2 S&P: 0.035max
3.75MnCr unbreakable forged grinding ball
Diameter: 20mm-150mm
Hardness: HRC60-65
Chemical elements:Cr: 0.4-0.6 C: 0.72-0.92 Si: 0.17-0.37 Mn: 0.7-1.0 S&P: 0.04max
4.60Si2CrV unbreakable forged grinding ball
Diameter: 20mm-150mm
Hardness: HRC60min
Chemical elements:Cr: 0.9-1.2 C: 0.56-0.64 Si: 1.4-1.8 Mn: 0.4-0.7 S & P: 0.03max
B. Unbreakable High Chromium Cast Grinding Ball
|
NAME |
BRAND |
CHEMICAL COMPOSITION(%) |
||||||
|
C |
Si |
Mn |
Cr |
Mo |
P |
S |
||
|
High Chromium |
ZQCr26 |
2.0-3.4 |
≤1.2 |
≤1.5 |
22-28 |
≤1.5 |
≤0.10 |
≤0.10 |
|
Casting Ball |
ZQCr20 |
2.0-3.4 |
≤1.2 |
≤1.5 |
17-22 |
≤1.5 |
≤0.10 |
≤0.10 |
|
|
ZQCr17 |
2.0-3.4 |
≤1.0 |
≤2.5 |
15-17 |
≤1.5 |
≤0.10 |
≤0.10 |
|
|
ZQCr13 |
1.7-3.4 |
≤1.0 |
≤2.5 |
11-14 |
≤1.5 |
≤0.10 |
≤0.10 |
Or chrome content as per buyer’s requirement.
Mechanical properties and microstructure
|
MAME |
BRAND |
HARDNESS |
IMPACT VALUE |
METALLOGRAPHIC |
BALLS |
|
|
ak(J/cm²) |
ORGANIZATION |
FATIGUE LIFE |
||||
|
QUENCHING STATE(A) |
NO- QUENCHING STATE(A) |
|
|
IMPACT |
||
|
High Chromium |
ZQCr26 |
≥60 |
≥45 |
≥4.0 |
M+C |
≥8000 |
|
Casting Ball |
ZQCr20 |
≥60 |
≥45 |
≥3.5 |
≥8000 |
|
|
|
ZQCr17 |
≥60 |
≥49 |
≥3.0 |
≥8000 |
|
|
|
ZQCr13 |
≥60 |
≥50 |
≥2.3 |
≥8000 |
|
Characteristics:
1) High hardness
2) Good wear-resistance
3) No breaking
4) No mal-roundness
Applied fields:
1) Metal Mines
2) Cement plants
3) Power stations
4) Chemical industry
