Hot sale tungsten copper bars China

1.Specifications:

Diameter: as required

Density: W90Cu10 17.2g/cm3, W80Cu20 15.5g/cm3, W85Cu15 16.4g/cm3, W70Cu30 14.5g/cm3

2. Types, chemical compositions and Properties of W-Cu alloy rod:

Type	Chemical composition of copper tungsten Alloy (%)		Resistivity(cm)	Tensile strength(kg/mm2)	Hardness	Density(g/cm3)
	W	Cu
F6002E	60	Balance	<=3.26*10-6	>=130	>=160	>=12.70
	70		<=3.80*10-6		>=200	>=13.80
	80		<=4.00*10-6		>=220	>=15.00

3. Applications of W-Cu alloy rod:

Sealed cap for transistors sealing welder, Contactor materials for high voltage switches and electrodes for spark Processing etc.

4. Character:

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.

Physical and Mechanical Properties:

Composites	Nominal Composition (% Weight)	Density (g/cm3, )	Electrical Resistivity (20C, cm, )	Electrical Conductivity (IACS%, )	Hardness() Brinell Hardness		Bending Strength
					MPa	Kgf/mm2	MPa	Kgf/mm2
CuW50	50% Copper  50% Tungsten	11.85	3.2	54	1128	115	---	---
CuW55	45% Copper  55% Tungsten	12.3	3.5	49	1226	125	---	---
CuW60	40% Copper  60% Tungsten	12.75	3.7	47	1373	140	---	---
CuW65	35% Copper  65% Tungsten	13.3	3.9	44	1520	155	---	---
CuW70	30% Copper  70% Tungsten	13.8	4.1	42	1716	175	667	68
CuW75	25% Copper  75% Tungsten	14.5	4.5	38	1912	195	706	72
CuW80	20% Copper  80% Tungsten	15.15	5.0	34	2158	220	736	75
CuW85	15% Copper  85% Tungsten	15.9	5.7	30	2354	240	765	78
CuW90	10% Copper  90% Tungsten	16.75	6.5	27	2550	260	804	82

 

CuW50 and CuW55 Have the lowest Tungsten contents. They are both good switching and contact materials for oil filled devices. CuW55 is also used for arcing Contacts in oil circuit breakers and arcing edges of selectors and switchblades In transformer tap changers.

CuW65 and CuW70 Are used as contact materials in severe arcing applications Including gas, oil and some air circuit breakers. They are also used for arcing Edges on selectors and reversing switch blades.

CuW75 and CuW80 Are used as contact materials under extreme arcing conditions. Applications include arcing contacts in gas and oil circuit breakers, Contactors and transformer tap changers, arcing plates and arc runners in power Switching equipment.

CuW85 and CuW90 Have the highest Tungsten content. They are used as contact Materials where resistance to contact welding, sticking and arc erosion are Critical. They also provide satisfactory heat and current interruption Capabilities. Typical applications are power vacuum switches and high power Spark gap electrodes, etc..

2.Dimension:

Type	Length (mm)	Width (mm)	Thickness (mm)	Diameter (mm)
Tungsten-Copper rod	2 ~ 300	---	---	2 ~ 320
Tungsten-Copper plate	10 ~ 600	10 ~ 600	2 ~ 200	---
Other types	Cube, ring, block, Tungsten-Copper electrode and other customized shaped products