■Tungsten Rod(Bar)
◇Application
Tungsten rod(bar) is for the application if emission cathode,high-temperature forming rod,support wire,lead-in wire,printer pin,various delectrodes and heating devices of quartz furnace,etc.
◇Specification
:mm
Surface
Sizes |
Swaged |
As-Drawn |
Cleaned&
Straightened |
Ground |
Length Tolerance |
Diameter
Tolerance |
Ovality |
Diameter
Tolerance |
Ovality |
Diameter
Tolerance |
Ovality |
Diameter
Tolerance |
Ovality |
0.2≤d<0.5 |
- |
- |
±0.01 |
0.01 |
±0.01 |
0.01 |
- |
- |
L<100±1.0
100≤L<300±1.5
300≤L<500±2.0
500≤L<1000±2.5
1000≤L<2000±5.0 |
0.5≤d<0.8 |
- |
- |
±0.02 |
0.02 |
±0.02 |
0.02 |
±0.01 |
0.01 |
0.8≤d<1.0 |
- |
- |
±0.02 |
0.02 |
±0.02 |
0.02 |
±0.02 |
0.02 |
1.0≤d<1.8 |
- |
- |
±0.03 |
0.03 |
±0.03 |
0.03 |
±0.02 |
0.02 |
1.8≤d<3.5 |
- |
- |
±0.05 |
0.05 |
±0.05 |
0.05 |
±0.03 |
0.03 |
3.5≤d<5.0 |
±0.1 |
- |
- |
- |
- |
- |
±0.05 |
0.05 |
5.0≤d<9.0 |
±0.2 |
- |
- |
- |
- |
- |
±0.08 |
0.08 |
9.0≤d<13.0 |
±0.3 |
- |
- |
- |
- |
- |
±0.10 |
0.10 |
13.0≤d<17.0 |
±0.4 |
- |
- |
- |
- |
- |
- |
- |
Note:Tungsten rod(bar),at or thicker than 17mm,or thinner than 0.2mm may be as agreed between supplier and purchaser. |