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50WCu Tungsten Copper Alloy Rod JDTG-WCu-009 | CuW50 Round Bar for EDM & Welding Electrodes
| Payment method | By T/T |
| Incoterm | FOB,CIF,EXW,FCA,Express Delivery |
| Min. Order | 10pcs or Communication and negotiation |
| Transportation | Ocean,Air,Express,Truck |
| Packing | Standard export packing,tailor-made packaging |
Attributes
| Specification | |
| Model No. | JDTG-WCu-009 |
| Brand | ZZJD |
| Place Of Origin | China |
| Diameter | 4.25*130mm, Support customization |
| Material | CuW50 |
| Density | 11.85±0.15g/cm³ |
| Surface | Polished |
| Standard | GB/T 8320，ASTM B702 |
| Product quality guarantee | Third-party material testing certificate COA,CO,COC,Inspection certificate3.1/EN10204 report etc. Provide according to requirements etc. |
| Factory qualification certification | ISO9001,ISO45001,ISO18001,ISO13485,RoHS certification,REACH certification |
PACKAGING & DELIVERY
| Selling Units | Kilogram, piece |
| Package Type | Standard export packing (Cartons, wooden boxes, iron drums, vacuum package, support customization packaging etc.) |
DESCRIPTION
50WCu Alloy Rod (CuW50 Tungsten Copper Bar)
50WCu is the copper-rich grade of tungsten copper alloy, composed of 50 wt% tungsten and 50 wt% copper. It delivers the highest electrical and thermal conductivity among standard WCu grades. This WCu rod is widely selected for applications prioritizing high-current transmission and heat dissipation rather than extreme heavy arc erosion.
Zhuzhou Jiuding (ZZJD) manufactures 50WCu rods by powder metallurgy and vacuum copper infiltration. The standard item is model JDTG-WCu-009, a polished 4.25×130 mm rod; full custom dimensions are also acceptable. Products can be turned, ground and cut to length with various surface finishes.
Core Advantages
• Highest conductivity of the standard WCu series: electrical conductivity ≥54 %IACS, thermal conductivity up to ~315 W/m·K. Heat dissipates rapidly, keeping electrodes and contacts cool under high current.
• Low electrical resistivity: ≤3.2 μΩ·cm, reducing I²R heat loss in high-current circuits.
• Balanced anti-welding performance: the tungsten skeleton prevents sticking and melting better than pure copper, while retaining good machinability.
• Easy machining: can be cut, drilled, threaded and plated (Ni/Au) without special tooling.
• Uniform dense microstructure: vacuum infiltration eliminates internal porosity and copper segregation, keeping performance stable across batches and along the whole rod.
• Transpiration cooling effect: copper vaporizes under intense local heat to carry energy away, ideal for plasma and discharge components.
Product Basic Specification of tungsten copper alloy
|
Item |
Details |
|
Model No. |
JDTG-WCu-009 |
|
Brand |
ZZJD |
|
Place of Origin |
China |
|
Dimension |
4.25×130 mm, support customization |
|
Material Grade |
CuW50 (50WCu) |
|
Density |
11.85±0.15 g/cm³ |
|
Surface Finish |
Polished |
|
Executive Standard |
GB/T 8320, ASTM B702 |
|
Quality Documents |
Third-party material testing certificate, COA, CO, COC, EN10204 3.1 inspection certificate — provided according to requirements. |
|
Factory Certifications |
ISO9001, ISO45001, ISO18001, ISO13485, RoHS, REACH |
Material Performance Parameters (CuW50)
|
Property |
Value |
Note |
|
Composition |
50% W / 50% Cu (±2%) |
Total impurities ≤0.5% |
|
Hardness |
≥115 HB |
Lower than WCu70/WCu80, easier to machine |
|
Resistivity |
≤3.2 μΩ·cm |
Tested per GB/T 5586 |
|
Electrical conductivity |
≥54 %IACS |
Top level among conventional WCu grades |
|
Thermal conductivity |
~315 W/m·K |
Typical reference value |
|
CTE |
~12.5 ×10⁻⁶/K |
Typical value, 20–100 °C |
Dimension Scope for Custom Order
|
Item |
Range |
Remarks |
|
Diameter |
Ø2 – 300 mm |
Fine small-diameter rods in stock; custom sizes acceptable |
|
Length |
up to 600 mm |
Cut-to-length service; facing / chamfer on request |
|
Diameter tolerance |
±0.02 mm for ground/polished finish |
Tighter tolerance negotiable |
|
Surface finish |
as-sintered / turned / ground / polished |
Ra 0.8 μm for precision grinding |
|
End treatment |
sawn, faced, chamfered |
Custom per drawing |
Typical Applications of copper tungsten alloy
• Fine EDM electrode blanks: small-diameter electrodes for precision finishing on steel and carbide molds.
• Resistance & spot welding electrodes: welding tips and electrode shanks for high-current welding.
• Thermal spreader / heat sink rods: RF, microwave and power electronics heat dissipation.
• High-current conductive components: contact carriers and conductive pins for switchgear.
• Plasma & discharge hardware: cathodes, nozzles and transpiration-cooled parts.
ECM electrochemical machining electrodes.
Production Flow & Packaging of tungsten copper alloy
Production flow: powder pressing → tungsten skeleton sintering → vacuum copper infiltration → precision machining → inspection.
Packaging: anti-oxidation vacuum bag + VCI paper, packed in plywood case for sea and air shipment. Sample orders and bulk orders are both supported.
FAQ
Q: Why choose 50WCu instead of WCu70 / WCu80?
A: 50WCu has superior conductivity. It is the best option when overheating or voltage drop is your main concern; WCu70/80 with higher tungsten content are better for severe arc erosion scenarios.
Q: Can you produce sizes other than model JDTG-WCu-009 (4.25×130 mm)?
A: Yes, full-size customization is supported. Please send your drawing or dimension requirements for quotation.
Q: What inspection reports can you provide?
A: We can supply COA, CO, COC and EN10204 3.1 inspection certificates according to your requirements. Our factory holds ISO, RoHS and REACH qualifications.
Q: Can the 50WCu rod be plated or threaded?
A: Yes. It machines and plates readily with nickel or gold; threading can be processed according to your drawings.
