Tungsten Plate / Sheet / Foil / Target
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It is used for smelting of rare earth metals, heating elements of induction furnace, heating elements of rare earth metals, smelting of quartz, glass and for high-temperature containers.
Table 1 Chemical Requirements
|
Grade |
Chief |
Impurity Maximum, % |
||||||
|
W |
O |
Fe |
Mo |
K |
AI |
Si |
others |
|
|
W-1 |
≥99.95 |
0.5 |
0.002 |
0.003 |
0.006~0.016 |
0.003~0.01 |
0.015~0.033 |
0.001 |
|
ASTM B760-86, GB/T3875-83. Special requirements to be agreed on the supplier and buyer |
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Table 2 Size and Tolerance of Tungsten Plate, Sheet, Foil
|
Thickness, mm |
Tolerance, mm |
Width, mm |
Tolerance, mm |
Length, mm |
Tolerance, mm |
Starus |
|
<0.2 |
0.01~0.02 |
50~150 |
+2.0/-0 |
500 |
+2.0/-0 |
Cold rolling |
|
0.3 |
0.01~0.03 |
50~250 |
+2.0/-0 |
500 |
+2.0/-0 |
|
|
0.4 |
0.01~0.04 |
50~250 |
+2.0/-0 |
500 |
+2.0/-0 |
|
|
0.5 |
0.01~0.05 |
50~300 |
+2.0/-0 |
500 |
+2.0/-0 |
|
|
0.8 |
0.02~0.08 |
50~300 |
+0.4/-0 |
500 |
+4.0/-0 |
|
|
1.0 |
0.02~0.10 |
50~300 |
+0.4/-0 |
600 |
+4.0/-0 |
|
|
1.5 |
0.02~0.15 |
50~400 |
+0.4/-0 |
600 |
+4.0/-0 |
|
|
2.0 |
0.02~0.20 |
50~500 |
+0.4/-0 |
700 |
+4.0/-0 |
|
|
3.0 |
0.02~0.30 |
50~500 |
+0.4/-0 |
600 |
+4.0/-0 |
Hot rolling |
|
4.0 |
0.02~0.40 |
50~500 |
+0.4/-0 |
600 |
+4.0/-0 |
|
|
≥5.0 |
0.05~0.40 |
50~550 |
+0.4/-0 |
600 |
+4.0/-0 |
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