Main Products: Titanium ,Tantalum ,Niobium ,Tungsten ,Molybdenum
hot sale W1 W2 cold rolling wolfram foils wolfram strips
USD $87 - $212 /Kilogram
Min.Order:1 Kilogram
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Baoji Top Star Non-Ferrous Metals Co., Ltd.
Business Type: Trading Company
Baoji Shaanxi ChinaMain Products: Titanium ,Tantalum ,Niobium ,Tungsten ,MolybdenumProduct Details
high purity tungsten foil
1. Dimensions and tolerances
1.1 Tolerances of thickness, width and length
| Thickness | Thickness tolerance | Width | Width tolerance | Length | Length tolerance | |
| Class 1 | Class 2 | |||||
| 0.10~0.20 | ±0.02 | ±0.03 | 30~150 | ±3 | 50~400 | ±3 |
| >0.2~0.30 | ±0.03 | ±0.04 | 50~300 | ±3 | 50~400 | ±3 |
| >0.30~0.40 | ±0.04 | ±0.05 | 50~300 | ±3 | 50~400 | ±3 |
| >0.40~0.60 | ±0.05 | ±0.06 | 50~300 | ±4 | 50~400 | ±4 |
| >0.60~0.80 | ±0.07 | ±0.08 | 50~300 | ±4 | 50~400 | ±4 |
| >0.8~1.0 | ±0.08 | ±0.10 | 50~300 | ±4 | 50~400 | ±4 |
| >1.0~2.0 | ±0.12 | ±0.20 | 50~300 | ±5 | 50~400 | ±5 |
| >2.0~3.0 | ±0.20 | ±0.30 | 50~300 | ±5 | 50~400 | ±5 |
| >3.0~4.0 | ±0.30 | ±0.40 | 50~300 | ±5 | 50~400 | ±5 |
| >4.0~6.0 | ±0.40 | ±0.50 | 50~300 | ±5 | 50~400 | ±5 |
| >6.0~30.0 | ±0.20 | ±0.50 | 50~300 | ±5 | 50~1200 | ±5 |
1.2 Flatness
Flatness: Max. 3 % determined in accordance with ASTM B760-86
2. Surface condition
| Surface: | The sheets are free from impurities, splits, fractures and indentations,having an impact on a common processing or application of the product. |
| Surface roughness: | Cold rolled. bright: Ra ≤ 1.20 μm Cold rolled. ground: Ra ≤ 1.60 μm Cold rolled. pickled (dull): Ra ≤ 2.00 μm |
3. Technical condition
GB3875-83 (Chinese standard for tungsten plate , tungsten foil, tungsten strip)
ASTM B760-86(American standard for tungsten plate, sheet, foil and strip)
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