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SUJ2鋼珠
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一.TPI鋼珠的特長(zhǎng)TPI ball’s-feature
二.等級(jí)適用範(fàn)圍Standards For Geometry and Surface Of Chrome Steel Balls
| 等級(jí) |
稱呼適用範(fàn)圍
|
形狀及表面粗度 |
| Grade |
Applicable range of ball size
mm |
真球度
Sphericity
(Max)μm |
直徑不同
Ball dia. variation
(Max) μm |
直徑相互差
Lot dia. variation
(Max) μm |
表面粗度
Surface roughness
(Max) μmRa |
| 1 |
0.5~2.0mm |
0.03 |
0.03 |
0.05 |
0.0025 |
| 2 |
0.5~3.5mm |
0.05 |
0.05 |
0.10 |
0.005 |
| 3 |
0.3~12mm |
0.08 |
0.08 |
0.13 |
0.012 |
| 5 |
0.3~12mm |
0.13 |
0.13 |
0.25 |
0.02 |
| 10 |
0.3~25mm |
0.25 |
0.25 |
0.5 |
0.025 |
| 16 |
0.3~25mm |
0.4 |
0.4 |
0.8 |
0.032 |
| 20 |
0.3~38mm |
0.5 |
0.5 |
1 |
0.04 |
| 28 |
0.3~38mm |
0.7 |
0.7 |
1.4 |
0.05 |
| 40 |
0.3~50mm |
1 |
1 |
2 |
0.08 |
| 60 |
0.3~65mm |
1.5 |
1.5 |
3 |
0.095 |
| 100 |
0.3~65mm |
2.5 |
2.5 |
5 |
0.125 |
| 200 |
0.3~65mm |
5 |
5 |
10 |
0.2 |
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三.硬度壓碎荷重規(guī)範(fàn)Material&Hardness and Crushing Load
|
稱呼
Ball size
|
直徑(mm)
Nominal ball dia. |
硬度(HRc)
平面測(cè)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(xué)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(shù)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 |
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