|
三.硬度壓碎荷重規範Material&Hardness and Crushing Load
|
稱呼
Ball size
|
直徑(mm)
Nominal ball dia. |
硬度(HRc)
平面測定值
Hardness
|
壓碎荷重(Kgf)
85.9Dw 1.773(min)
Crushing load |
| 1/8〞 |
3.175 |
0.5mm~3.0mm HV772~900
(HRc63~67)
1/8〞~ 1 1/8〞
HRc62~67
1 3/16〞~ 4 1/2〞
HRc61~67 |
700 |
| 3.5 |
3.500 |
800 |
| 4 |
4.000 |
1000 |
| 3/16〞 |
4.763 |
1400 |
| 7/32〞 |
5.556 |
1800 |
| 1/4〞 |
6.350 |
2300 |
| 9/32〞 |
7.144 |
 |
2800 |
| 5/16〞 |
7.938 |
3400 |
| 3/8〞 |
9.525 |
4700 |
| 7/16〞 |
11.112 |
6100 |
JIS G4805
AISI 52100 |
化學成分 % (Chemical Composition %) |
| C |
Si |
Mn |
P |
S |
Cr |
| SUJ2 |
0.95~1.10 |
0.15~0.35 |
0.50max |
0.025max |
0.025max |
1.30~1.60 |
三.包裝單位Quantity in a carton box
| Size |
盒裝數量 pcs/盒 |
每千顆重量Kg/1000pcs |
| 1/8〞 |
30,000 |
0.1302 |
| 3.5 |
24,000 |
0.1744 |
| 4 |
16,000 |
0.2604 |
| 3/16〞 |
10,000 |
0.4395 |
| 7/32〞 |
6,000 |
0.6979 |
| 1/4〞 |
4,000 |
1.042 |
| 9/32〞 |
3,000 |
1.483 |
| 5/16〞 |
2,000 |
2.035 |
| 3/8〞 |
1,200 |
3.516 |
| 7/16〞 |
800 |
5.582 |
|
