Leading Manufacturer of Tungsten Copper Alloy in China
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Specification
Customized
Product Details
| Customization: | Available |
|---|---|
| Application: | Aviation, Electronics, Industrial, Medical, Chemical |
| Standard: | ASTM |
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Basic Info.
- Purity
- 90%-97%
- Alloy
- Alloy
- Shape
- Cusotmized
- Type
- Customized
- Product Name
- Customized Tungsten Copper Alloy
- Keywords
- Tungsten Copper Alloy
- Available Grades
- W65cu35, W70cu30, W75cu25, W80cu20
- Composition Range
- 65-80% Tungsten, 20-35% Copper
- ASTM Standard
- B702 (Class a Through Class D)
- Density
- 11.7 - 14.3 G/Cm³
- Theoretical Density
- ≥96%
- Electrical Conductivity
- 41-64% Iacs
- Hardness
- 69-102 Hrb
- Tensile Strength
- 344-654 MPa
- Thermal Expansion Coefficient
- (9.5-13.0) × 0.0000001 /K
- Compliance
- ASTM B702, Rwma Certified
- Primary Applications
- Resistance Welding Electrodes, EDM Electrodes, and
- Transport Package
- Export Wooden Cases
- Specification
- Standard Sizes or customized
- Trademark
- KEFENG
- Origin
- Shanxi, China
- HS Code
- 81019990
- Production Capacity
- 3000kgs Per Month
Product Description

Product Description

TUNGSTEN COPPER ALLOY
Premium tungsten copper alloy combining exceptional electrical conductivity with superior heat resistance, ideal for resistance welding electrodes, EDM applications, and high-performance electrical contacts.
Available in multiple compositions (W65Cu35 to W80Cu20), fully compliant with ASTM B702 and RWMA standards, ensuring reliable performance in demanding industrial environments.
Premium tungsten copper alloy combining exceptional electrical conductivity with superior heat resistance, ideal for resistance welding electrodes, EDM applications, and high-performance electrical contacts.
Available in multiple compositions (W65Cu35 to W80Cu20), fully compliant with ASTM B702 and RWMA standards, ensuring reliable performance in demanding industrial environments.
KEY FEATURE
* High electrical conductivity ranging from 38-64% IACS ensures optimal current transfer and energy efficiency in welding and electrical applications.
* Exceptional hardness (69-106 Rockwell B) and tensile strength up to 689 MPa provide extended electrode service life and reduced replacement costs.
* Superior thermal properties with a low thermal expansion coefficient (4.9-7.2 x 0.000001) minimize deformation under extreme temperature conditions and prolonged use.
* Multiple grade options (W65Cu35, W70Cu30, W75Cu25, W80Cu20) available in standard and custom sizes to meet specific application requirements.
* High electrical conductivity ranging from 38-64% IACS ensures optimal current transfer and energy efficiency in welding and electrical applications.
* Exceptional hardness (69-106 Rockwell B) and tensile strength up to 689 MPa provide extended electrode service life and reduced replacement costs.
* Superior thermal properties with a low thermal expansion coefficient (4.9-7.2 x 0.000001) minimize deformation under extreme temperature conditions and prolonged use.
* Multiple grade options (W65Cu35, W70Cu30, W75Cu25, W80Cu20) available in standard and custom sizes to meet specific application requirements.



Specification
TECHNICAL PARAMETERS | |
Product Name | Customized Tungsten Copper Alloy |
Keywords | Tungsten Copper Alloy |
Available Grades | W65Cu35, W70Cu30, W75Cu25, W80Cu20 |
Composition Range | 65-80% Tungsten, 20-35% Copper |
ASTM Standard | B702 (Class A through Class D) |
Density | 11.7 - 14.3 g/cm³ |
Theoretical Density | ≥96% |
Electrical Conductivity | 41-64% IACS |
Hardness | 69-102 HRB |
Tensile Strength | 344-654 MPa |
Thermal Expansion Coefficient | (9.5-13.0) × 0.000001 /K |
Compliance | ASTM B702, RWMA Certified |
Primary Applications | Resistance Welding Electrodes, EDM Electrodes, And Electrical Contacts |
TAB;E X1.1 Chemical Requirements | |||||
Class A Class B Class C Class D Class E | |||||
Copper % | 48-52 | 38-42 | 28-32 | 23-27 | 18-22 |
Tungsten % | Balance | Balance | Balance | Balance | Balance |
Additives(Individual or total),Max % | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 |
Class A Class B Class C Class D Class E | |||||
Hardness, Rockwell B, Density, Mg/m3 at 96% theoretical Electrical conductivity c% IACS Electrical conductivity D% IACS Note-Hardness and density values cover both types. | 69-83 11.7 56-64 38-56 | 77-90 12.7 49-57 34-49 | 85-98 13.7 44-52 29-43 | 89-102 14.3 41-48 27-41 | 96-106 15.0 38-45 25-37 |
Class A Class B Class C Class D Class E | |||||
Tensile Strength, ksi MPa | 50-60 344-413 | 55-65 379-448 | 75-85 516-585 | 85-95 585-654 | 90-100 620-689 |
Modulus of rupture, ksi MPa | 75-85 517-586 | 110-120 758-827 | 130-140 896-965 | 140-150 965-1034 | 150-160 1034-1103 |
Coefficient of Expansion, in./in OF m/m.k | 7.2x10-6 13x10-6 | 6.6x10-6 11.9x10-6 | 5.7x10-6 10.3x10-6 | 5.3x10-6 9.5x10-6 | 4.9x10-6 8.8x10-6 |

Detailed Photos

CONSISTENT WELD QUALITY WITHOUT CONTAMINATION
Our high-purity tungsten copper electrodes deliver superior arc stability and minimal electrode wear, effectively eliminating material transfer and surface contamination during resistance welding operations. This metallurgical precision ensures repeatable weld integrity, reduces defect rates by up to 40%, and significantly lowers scrap costs in high-volume production environments.
Our high-purity tungsten copper electrodes deliver superior arc stability and minimal electrode wear, effectively eliminating material transfer and surface contamination during resistance welding operations. This metallurgical precision ensures repeatable weld integrity, reduces defect rates by up to 40%, and significantly lowers scrap costs in high-volume production environments.
DUAL-METAL SYNERGY FOR EXTREME CONDITIONS
Engineered through advanced powder metallurgy techniques, our tungsten-copper composite matrix maintains optimal electrical conductivity while withstanding thermal loads exceeding 500°C. This unique microstructure prevents thermal degradation and structural failure under sustained high-current density applications, outperforming conventional single-metal electrode materials in demanding industrial welding processes.
Engineered through advanced powder metallurgy techniques, our tungsten-copper composite matrix maintains optimal electrical conductivity while withstanding thermal loads exceeding 500°C. This unique microstructure prevents thermal degradation and structural failure under sustained high-current density applications, outperforming conventional single-metal electrode materials in demanding industrial welding processes.


VERSATILE PRECISION ENGINEERING
Manufactured to strict ASTM B702 and RWMA specifications, our tungsten copper alloys provide consistent mechanical properties and dimensional tolerances across grades W65Cu35 through W80Cu20. This comprehensive range enables seamless integration into diverse applications—from micro-EDM machining to heavy-duty spot welding—streamlining your supply chain with a single, certified material source.
Manufactured to strict ASTM B702 and RWMA specifications, our tungsten copper alloys provide consistent mechanical properties and dimensional tolerances across grades W65Cu35 through W80Cu20. This comprehensive range enables seamless integration into diverse applications—from micro-EDM machining to heavy-duty spot welding—streamlining your supply chain with a single, certified material source.





FAQ
Q1: What are your main products?
A: Tungsten alloy rods, blocks, rings, sheets, and processed parts.
A: Tungsten alloy rods, blocks, rings, sheets, and processed parts.
Q2: Why should I choose your company as a partner?
A: As you know, low-cost raw materials make your products more competitive in the market. It means it will make your sales easier.
A: As you know, low-cost raw materials make your products more competitive in the market. It means it will make your sales easier.
Q3: Can the delivery time of tungsten alloy products be shorter?
A: Usually, we ensure that all orders are delivered within 30 days. Tungsten copper 15 days.
A: Usually, we ensure that all orders are delivered within 30 days. Tungsten copper 15 days.
Q4: Can the price be lower?
A: We use first-class tungsten powder with high cost.
A: We use first-class tungsten powder with high cost.
Q5: What is the MOQ of your products?
A: Please send an email to inquire about different products.
A: Please send an email to inquire about different products.
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