Chinese Professional High Purity Niobium Tube - Wholesale Price Low Thermal Conductivity Alloy Tungsten Copper Plate – Forged Tungsten

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We constantly think and practice corresponding to the change of circumstance, and grow up. We aim at the achievement of a richer mind and body along with the living for Copper Tungsten Alloy, Tungsten Copper, Tungsten Copper Plate, Our company regards “reasonable prices, efficient production time and good after-sales service” as our tenet. We hope to cooperate with more customers for mutual development and benefits. We welcome potential buyers to contact us.
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


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