Customization: | Available |
---|---|
Application: | Industrial |
Standard: | ASTM |
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Designation |
Tungsten Content | Impurity Elements Content | |
---|---|---|---|
Total | Each | ||
W1 | ≥99.95% | ≤0.05% | ≤0.01% |
W2 | ≥99.92% | ≤0.08% | ≤0.01% |
Note: Potassium is not counted in impurities content. |
Diameter (μm) |
Weight (mg/200mm) | Weight(mg/200mm) Tolerance(%) | Diameter Tolerance(%) | ||||
---|---|---|---|---|---|---|---|
Grade 0 | Grade 1 | Grade 2 | Grade 0 | Grade 1 | Grade 2 | ||
5≤d≤12 | 0.075~0.44 | - | ±4 | ±5 | - | - | - |
12<d≤18 | >0.44~0.98 | - | ±3 | ±4 | - | - | - |
18<d≤40 | >0.98~4.85 | ±2 | ±2.5 | ±3 | - | - | - |
40<d≤80 | >4.85~19.39 | ±1.5 | ±2.0 | ±2.5 | - | - | - |
80<d≤300 | >19.39~272.71 | ±1.0 | ±1.5 | ±2.0 | - | - | - |
300<d≤350 | >272.71~371.79 | - | ±1.0 | ±1.5 | - | - | - |
350<d≤500 | - | - | ±1.5 | ±2.0 | ±2.5 | ||
500<d≤1800 | - | - |