Polished Tungsten Copper Alloy Round Bar Rod

• Application: Aviation, Industrial, Medical
• Standard: GB, ASTM
• Purity: >99.95%
• Model NO.: WCu
• Alloy: Non-alloy
• Shape: Rod Bar
• Type: Tungsten Bars
• Density: 12.2-17g/cm3
• Transport Package: Wooden Boxes
• Specification: Dia(1-10mm)*L (10--2000)
• Trademark: Jiangchi
• Origin: China
• HS Code: 8101990000
• Production Capacity: 80t/Year

Product Description

Wolfram tungsten alloy WCu rod/plate/sheet
1. WCu tungsten aloy specification:
  1) WCu (W70Cu, W75Cu, W80Cu, W85Cu, W90Cu, etc)
  2) Density:16-18.8g/cm3
  3) Size:As your need
    Plate: (0.04-50)* W X L
    rod-Dia.1.5 - 200 X 300mm Long
  4) Flatness tolerance:<4um
  5) Roughness:Ra1.6-Ra0.8
  6) Surface: polished, ground.

2. Property Brief Introduction
W-Cu heat sink material is a composite of tungsten and copper, with both tungsten low expansion characteristics, but also has copper of high thermal conductivity properties, and the tungsten and copper in the thermal expansion coefficient and thermal conductivity can be adjusted with the W-Cu composition, also the composite can be machined to various shape, these features make the application of this composite with great convenience.
 1) high melting point, high strength,
 2) smooth and clean surface,
 3) good conductions, small linear expansion coefficient and good heat-resistance

3. Chemical composition

Material	WCu% Tungsten Content	Hardness HB	g/ Density at 20ºC	W/M.K Thermal conductivity at 25ºC	(10-6/k) Coefficient of thermal expansion at 20ºC
W90Cu10	90	260	17.0	180-190	6.5
W85Cu15	85	240	16.4	190-200	7.0
W80Cu20	80	220	15.6	200-210	8.3
W75Cu25	75	195	14.9	220-230	9.0
W50Cu50	50	125	12.2	310-340	12.5

4.Copper tungsten alloy--Tungsten Copper Composite Features:
No Fe, Co, Ni, Mn and other elements added as the sintering activator, to maintain a high thermal conductivity
Excellent hermeticity
Can provide semi-finished or finished (Ni/Au plated) products
Precision machining and excellent dimensional control, surface finish and flatness
With close technical support including product design, custom manufacturing, testing and post sale supports.

Top grade W50-W90% wolfram tungsten copper alloy plate supplier 
Material: W50-90Cu10-50
Density: 11.85g/cm3-16.75g/cm3
Product standard: GB8320-87
WCu alloy foil size: Thickness(0.08-0.7mm)*Width<120mm*Length<300mm
WCu alloy sheet size: the main sizes see attachment
WCu alloy rods size: diameter(3-100mm)*L<500mm
Physical machine Property

Class		Density g/cm3		Hardness MN/m2		Resistivity μΩ.cm			Conductivity IACS
W50Cu50		11.85		1128		3.2			54
W55Cu45		12.30		1226		3.5			49
W60Cu40		12.75		1373		3.7			47
W65Cu35		13.3		1520		3.9			44
W70Cu30		13.8		1716		4.1			42
W75Cu25		14.5		1912		4.5			38
W80Cu20		15.15		2158		5.0			34
W85Cu15		15.9		2354		5.7			30
W90Cu10		16.75		2550		6.5			27
Code No.	Chemical Composition %						Mechanical properties
	CU		Impurity		W		Density (g/cm3 )	Hardness  HB		RES (cm)		Conductivity   IACS/ %	TRS/  Mpa
CuW50	50+/-2.0		0.5		Balance		11.85	115		3.2		54	/
CuW55	45+/-2.0		0.5		Balance		12.3	125		3.5		49	/
CuW60	40+/-2.0		0.5		Balance		12.75	140		3.7		47	/
CuW65	35+/-2.0		0.5		Balance		13.3	155		3.9		44	/
CuW70	30+/-2.0		0.5		Balance		13.8	175		4.1		42	790
CuW75	25+/-2.0		0.5		Balance		14.5	195		4.5		38	885
CuW80	20+/-2.0		0.5		Balance		15.15	220		5		34	980
CuW85	15+/-2.0		0.5		Balance		15.9	240		5.7		30	1080
CuW90	10+/-2.0		0.5		Balance		16.75	260		6.5		27	1160

WCu tungsten copper alloy application and performance:
1.  Arcing contacts and vaccum contacts in high and medium voltage breakers or vaccum interruptors;
2.  Electrodes in electric spark erosion cutting machines;
3.  Electrodes for resistance welding;used where the combination of high heat resistance, high electrical
4. Some of the applications are in electric resistance welding, as electrical contacts, and as heat sinks.
5. As contact material the alloy is resistant to erosion by electric arc. WCu alloys are also used in electrodes for electrical discharge machining and electrochemical machining.

Advantages of Copper Tungsten Plates:
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. 

1. Pure tungsten rod specification:
Black:Surface is "as swaged" or "as drawn"; retaining a coating of processing lubricants and oxides.
Cleaned - Surface is chemically cleaned to remove all lubricants and oxides.
Ground - Surface is centerless ground to remove all coating and to achieve precise diameter control.
2. Tungsten rods available size:
Forged rods size: Diameter(2-100mm)*Length<2500mm
Strainghtened rods after drawn  diameter 0.8-3.2mm

Tungsten Content	Type	Diameter (mm)	Dia.Tolerance (mm)	Length (mm)	L tolerance (mm)
99.95%	Sintering rod	40-100	±3	500max	±5
99.95%	Forged rod	20-80	±2	800max	±5
99.95%	Ground rod	2-60	±0.1	600max	±1

Pure tungsten rod/electrode for argon arc welding
We have many kinds of tungsten electrode type:
Pure tungsten electrodes-WP(marked green color)
Thoriated tungsten electrodes- WT10(marked yellow color)
                                                  WT20(marked red color)
                                                  WT30(marked purple color)
                                                  WT40(marked orange color)
Lanthanum tungsten electrodes-WL10(marked black color)
                                                   WL15(marked gold color)
                                                    WL20(marked sky blue color)
Cerium tungsten electrodes- WC20(marked gray color)
Yttrium tungsten electrodes- WY20(marked blue color)
Zirconiated tungsten electrodes- WZ3(marked brown color)
                                                    WZ8(marked white color)