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“Quality 1st, Honesty as base, Sincere company and mutual profit” is our idea, in an effort to create consistently and pursue the excellence for Tungsten Sheet, Tungsten Sheet Per Kg, Tungsten Steel Plate, As operation principle is “be market-oriented , good faith as principle, win-win as objective”, holding on “customer first, quality assurance, service first” as our purpose, dedicated to offer the original quality, create excellence service , we won the praise and trust in the industry of auto parts. In the future, We will present quality product and excellent service in return to our customers , welcome any suggestions and feedback from all over the world.
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