Our purpose is to fulfill our clients by offering golden company, great price and premium quality for Bottom price Hot Sale Feuille de tungstène, We feel you are going to be happy with our affordable selling price, top quality solutions and rapidly delivery. We sincerely hope you can give us an opportunity to provide you and be your best partner!
Our purpose is to fulfill our clients by offering golden company, great price and premium quality for Feuille de tungstène, Due to our strict pursues in quality, and after-sale service, our product gets more and more popular around the world. Many clients came to visit our factory and place orders. And there are also many foreign friends who came for sight seeing, or entrust us to buy other stuff for them. You are most welcome to come to China, to our city and to our factory!
Chemical composition:
| Main and minor components | Min.content(%) | ASTM B760 |
| W | 99.97 | balance |
| Impurities | Max.values (μg/g) | Max.values (μg/g) |
| Al | 15 | - |
| Cu | 10 | - |
| Cr | 20 | - |
| Fe | 30 | 100 |
| K | 10 | - |
| Ni | 20 | 100 |
| Si | 20 | 100 |
| Mo | 300 | - |
| C | 30 | 100 |
| H | 5 | - |
| N | 5 | 100 |
| O | 20 | 100 |
| Cd | 5 | - |
| Hg | 1 | - |
| Pb | 5 | - |
Dimensions and tolerances:
Cold rolled sheets
| Thickness(mm) | Thickness tolerance(±mm) | ||
| Width≤200mm | Max.width 510mm | Width tolerance(±mm) | |
| 0.025 | 0.003 | ||
| 0.025-0.03 | 0.004 | 0.5 | |
| 0.03-0.04 | 0.005 | 0.5 | |
| 0.04-0.05 | 0.006 | 0.5 | |
| 0.05-0.06 | 0.008 | 0.5 | |
| 0.06-0.08 | 0.010 | 0.5 | |
| 0.08-0.10 | 0.015 | 0.5 | |
| 0.10-0.15 | 0.025 | 0.045 | 0.5 |
| 0.15-0.30 | 0.035 | 0.060 | 1.0 |
| 0.30-0.40 | 0.05 | 0.085 | 1.6 |
| 0.40-0.50 | 0.06 | 0.110 | 1.6 |
Hot rooled sheets
| Thickness(mm) | Thickness tolerance(±mm) | ||
| Width≤510mm | Max.width 1200(mm) | Width tolerance(±mm) | |
| 0.05-0.60 | 0.110 | 1.6 | |
| 0.60-0.80 | 0.140 | 2.0 | |
| 0.08-1.00 | 0.200 | 2.0 | |
| 1.00-2.00 | 0.250 | 2.0 | |
| 2.00-8.00 | 0.300 | 2.0 | |
| 8.0-20.00 | 5% | 5% | 2.0 |
Length tolerance: the length tolerance for all dimensions is maximal +5/-0 mm.
Flatness: max. 4% (measuring procedure on the basis of ASTM B760)
Density: thickness＜10.00mm density＞19.2g/cm³
thicknes（10.00-20.00mm）density＞19.1g/cm³
Vickers hardness:
≤0.10 mm ≥550 HV
0.10-0.05 mm ≥500 HV
0.50-1.50mm ≥470 HV
1.50-10.00mm ≥450 HV
10.00-20.00mm ≥420 HV
Appearance: The material will be of uniform quality, free from foreign matter, splits and fractures.
Bed sheet (not trimmed) may have small edge cracks.
Surface quality:
Cold rolled ≤ 0.30mm bright
Cold rolled 0.3-0.5 mm pickled
Hot rolled ≥0.50 mm pickled