China Copper Tungsten Alloy Electrical Contact

higher density WCu rod tungsten of copper alloy
(1).Copper-tungsten () alloy is a pseudo-alloy of copper and tungsten. As copper and tungsten are not mutually soluble, the material is composed of distinct particles of one metal dispersed in a matrix of the other one. The microstructure is therefore rather a metal matrix composite instead of a true alloy.
(2 ).The material combines the properties of both metals, resulting in a material that is heat-resistant, ablation-resistant, highly thermally and electrically conductive, and easy to machine.
(3). Parts are made from the CuW alloy by pressing the tungsten particles into a desired shape,sinteringthe compacted part, then infiltrating with molten copper. Sheets, rods and bars of the alloy are available as well.
(4). Commonly used copper tungsten alloy contains 10-50 wt.% of copper, the remaining portion being mostly tungsten. The typical properties of the alloy depend on its composition.
(5). The alloy with less wt.% of copper has higher density, higher hardness and higher resistivity. The typical density of CuW90 alloy, with 10% of copper, is 16.75 g/cm3 and 11.85 g/cm3 for CuW50 alloy. CuW90 has higher hardness and resistivity of 260 HB kgf/mm2 and 6.5 µΩ.cm than CuW50.
Material List
Brand and No. Chemical Components %Physical PropertiesCuTotal ImpuritiesW
Density
(G/cm³)
Hardness
HB≥
Resistivity
υΩ.cm≤
Conductivity
IACS%≥
Bending Strength
Mpa≥CuW(50)50±2.00.5balance11.851153.254 CuW(55)45±2.00.5balance12.301253.549 CuW(60)40±2.00.5balance12.751403.747 CuW(65)35±2.00.5balance13.301553.944 CuW(70)30±2.00.5balance13.801754.142790CuW(75)25±2.00.5balance14.501954.538885CuW(80)20±2.00.5balance15.152205.034980CuW(85)15±2.00.5balance15.902405.7301080CuW(90)10±2.00.5balance16.752606.5271160
Characters:
1. Better heat resistant;
2. better ablate-resistant;
3. High intensity
4. High density;
5. Excellent thermal and electrical conductivity;
6. easy to be machined.
Solid Rods (Metric) 330mm

Unground
h6
L
Tol.Unground
h6
L
Tol.DTol.DTol.Ø2.2+0.3/+02.0330+5/+0Ø17.2+0.3/+017330+5/+0Ø3.2+0.3/+03.0330+5/+0Ø18.2+0.3/+018330+5/+0Ø4.2+0.3/+04.0330+5/+0Ø19.2+0.3/+019330+5/+0Ø5.2+0.3/+05.0330+5/+0Ø20.2+0.3/+020330+5/+0Ø6.2+0.3/+06.0330+5/+0Ø21.2+0.3/+021330+5/+0Ø7.2+0.3/+07.0330+5/+0Ø22.2+0.3/+022330+5/+0Ø8.2+0.3/+08.0330+5/+0Ø23.2+0.3/+023330+5/+0Ø9.2+0.3/+09.0330+5/+0Ø24.2+0.3/+024330+5/+0Ø10.2+0.3/+010.0330+5/+0Ø25.2+0.3/+025330+5/+0Ø11.2+0.3/+011.0330+5/+0Ø26.2+0.3/+026330+5/+0Ø12.2+0.3/+012.0330+5/+0Ø27.2+0.3/+027330+5/+0Ø13.2+0.3/+013.0330+5/+0Ø28.2+0.3/+028330+5/+0Ø14.2+0.3/+014.0330+5/+0Ø29.2+0.3/+029330+5/+0Ø15.2+0.3/+015.0330+5/+0Ø30.2+0.3/+030330+5/+0Ø16.2+0.3/+016.0330+5/+0
Two straight coolant ducts rods, Reduced TK

Unground
Ground h6
TK
Tol.
d
Tol.
L
a
D
Tol.6.3
+0.3/06.01.50/-0.200.80
±0.15
3300.157.37.01.50.800.158.38.02.6
0/-0.301.000.159.39.02.61.000.2010.310.02.61.000.2011.3
+0.4/011.03.51.200.2812.312.03.51.200.3013.313.03.51.200.3414.314.05.01.500.3715.315.05.01.500.4016.316.05.01.50
±0.200.4017.3
+0.5/017.06.22.000.4718.318.06.22.000.5019.319.06.22.000.5020.320.06.20/-0.402.00±0.300.50
30° Two Helical Coolant Ducts(Type HE-30°)

Unground
Ground h6L
Tol. +5.0
TK
Tol.
d
Tol.
Pitch
D
Tol.6.3
+0.4/+1.06.03302.7
±0.20.80
±0.1532.657.37.03303.51.0038.098.38.03303.41.0043.539.39.03304.5±0.31.4048.9710.310.03304.81.3054.4111.3
+0.4/+1.211.03304.9
±0.41.4059.8612.312.03306.31.7065.3013.313.03306.11.75
±0.2070.7414.314.03306.71.8076.1815.315.03307.31.7581.8216.3
+0.4/+1.416.03308.02.0087.0617.317.03308.51.75
±0.2592.5018.318.03309.02.3097.9519.319.03309.72.00103.3920.320.033010.0±0.52.50108.83