High chrome alloy casting iron ball
PRODUCT DESCRIPTION
Diameter tolerance and roundness
| Diameter | Φ<30 | 30<Φ<60 | 60<Φ<80 | 80<Φ<100 | Φ>100 |
|---|---|---|---|---|---|
|
Diameter tolerance(mm) |
+1,-1 |
+1.5,-1 |
+2,-1 |
+2.5,-1 |
+3,-1 |
Chemical composition
| Chemical composition(%) | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
Brand |
C |
Si |
Mn |
Cr |
Mo |
Cu |
Ni |
P |
S |
|
ZQCr26 |
2.0-3.3 |
1.2max |
0.3-1.5 |
>23.0-30.0 |
0-3.0 |
0-1.2 |
0-1.5 |
≤0.10 |
≤0.06 |
|
ZQCr20 |
2.0-3.3 |
1.2max |
0.3-1.5 |
>18.0-23.0 |
0-3.0 |
0-1.2 |
0-1.5 |
≤0.10 |
≤0.06 |
|
ZQCr15 |
2.0-3.3 |
1.2max |
0.3-1.5 |
>14.0-18.0 |
0-3.0 |
0-1.2 |
0-1.5 |
≤0.10 |
≤0.06 |
|
ZQCr12 |
2.0-3.3 |
1.2max |
0.3-1.5 |
>10.0-14.0 |
0-3.0 |
0-1.2 |
0-1.5 |
≤0.10 |
≤0.06 |
|
ZQCr8 |
2.1-3.3 |
2.2max |
0.3-1.5 |
7.0-10.0 |
0-1.0 |
0-0.8 |
– |
≤0.10 |
≤0.06 |
Technical specification
| Brand | Diameter(mm) | Hardness(HRC) | Breakage rate | Impact value(J/cm²) | Drop times(times) | Micro structure |
|---|---|---|---|---|---|---|
|
ZQCr26 |
17-150 |
>58 |
<1% |
>7 |
≥12000 |
M+C |
|
ZQCr20 |
17-150 |
>58 |
<1% |
>6 |
≥12000 |
M+C |
|
ZQCr15 |
17-150 |
>58 |
<1% |
>5 |
≥12000 |
M+C |
|
ZQCr12 |
17-150 |
>58 |
<1% |
>3.5 |
≥12000 |
M+C |
|
ZQCr8 |
17-150 |
>58 |
<1% |
>3 |
≥12000 |
M+C |
