50W50Cu Tungsten Copper Rod - GB/T 8320 & ASTM B702 Standard

Product Introduction

Zhuzhou Jiuding Metal Technology Corp Ltd is a professional manufacturer and supplier of high-performance  tungsten copper alloy products, located in Zhuzhou, China — the core tungsten industrial base. We specialize in R&D, precision sintering and custom machining of  50W50Cu Tungsten Copper Rod, which is widely recognized as the dedicated material for INSERT-HDP TIP embedded electrode tips. All products are strictly produced and inspected in accordance with GB/T 8320 and ASTM B702 dual industry standards, featuring stable composition consistency, excellent electrical conductivity and superior arc erosion resistance. With mature vacuum infiltration powder metallurgy technology and complete quality control system, we supply high-precision  50/50 tungsten copper rods for global high-end resistance welding and HDP electrode assembly industries.

Product Overview

 50W50Cu Tungsten Copper Rod is a premium 50% tungsten + 50% copper composite alloy, custom-developed for INSERT-HDP TIP embedded electrode applications. Produced by advanced vacuum infiltration process, this high-grade material perfectly balances high thermal stability of tungsten and ultra-high conductivity of copper. It features uniform pore-free internal structure, stable high-temperature dimensional performance and excellent anti-ablation capability, effectively solving common welding problems such as tip burning, deformation and unstable discharge during long-term high-current automated welding. Fully compliant with GB/T 8320 and ASTM B702 standards, 50W50Cu is the most ideal professional material for HDP insert electrode tips and high-precision resistance welding conductive components.

Dual Standard Compliance (GB/T 8320 & ASTM B702)

Our  50W50Cu tungsten copper rods comply with both Chinese national standard and American industrial standard, with unified composition tolerance, physical performance indicators and inspection criteria, fully meeting global industrial procurement, third-party testing and high-end equipment matching requirements:

• GB/T 8320 (Chinese National Standard): Authoritative standard for copper-tungsten electrical contact alloys in China. It standardizes the technical indicators of 50W50Cu tungsten copper materials, including chemical composition, density, hardness, conductivity and resistivity, serving as the core production and inspection basis for tungsten copper electrode rods.

• ASTM B702 (US Industry Standard): International universal standard for tungsten-copper alloy finished products. It regulates dimensional tolerance, mechanical properties and quality evaluation standards for 50/50 tungsten copper rods, ensuring full compatibility with overseas HDP electrode assembly and export certification systems.

GB/T 8320 Standard Specification for 50W50Cu Tungsten Copper Alloy

In accordance with GB/T 8320 and ASTM B702 regulations, 50W50Cu ( 50/50) is the standard premium grade for embedded electrode tip materials. All core performance indicators are strictly implemented in our whole production and quality inspection process:

• Standard Grade: 50W50Cu /  50/50

• Standard Composition: Tungsten 50%, Copper 50%, total impurities ≤0.5%

• Standard Hardness: ≥ 115 HB

• Standard Resistivity: ≤ 3.2 μΩ·cm

• Standard Electrical Conductivity: ≥ 54% IACS

• Standard Density: 11.85 g/cm³

Customization & Stable Performance Control

Aiming at personalized assembly requirements of various INSERT-HDP TIP structures, we provide full-size and shape customization for 50W50Cu tungsten copper rods. Strict internal structure control ensures consistent hardness, conductivity and dimensional accuracy in batch production:

• Custom Size Service: Custom diameter, length, end face finishing and special-shaped grooving according to drawings

• Structure Advantage: Vacuum infiltration forming, uniform density, no pores, no segregation

• Performance Stability: Consistent conductivity and hardness in different batches, suitable for automated mass production

• Processing Precision: Support high-precision turning, grinding and fine finishing for HDP tip assembly

Core Technical Specifications

All technical indicators of  50W50Cu tungsten copper rods strictly conform to GB/T 8320 and ASTM B702 standards, with stable and reliable comprehensive performance for HDP insert electrode applications:

Key Product Features of 50Wcu Tungsten copper alloy

• Dedicated INSERT-HDP TIP Material:  50W50Cu is the exclusive matching material for HDP embedded electrode tips. The balanced 50/50 tungsten-copper ratio perfectly adapts to long-term high-current welding, effectively preventing tip ablation, deformation and unstable discharge.

• Ultra-high Conductivity & Fast Heat Dissipation: Higher copper content provides ≥54% IACS excellent conductivity and rapid heat dissipation performance, greatly reducing thermal accumulation during continuous welding and improving working stability of electrode tips.

• Excellent Arc Erosion Resistance: Uniform tungsten matrix structure provides outstanding high-temperature wear resistance and arc impact resistance, extending the service life of HDP insert electrodes significantly compared with conventional copper materials.

• Stable Batch Consistency: Adopting vacuum infiltration sintering process, the product has high compactness, no internal pores and uniform structure, ensuring zero batch difference for automated mass welding production.

• High Customization Flexibility: Support precision finishing, special-shaped processing and non-standard size customization, perfectly matching various HDP electrode base assembly structures and personalized industrial needs.

 

Main Applications of 50Wcu Tungsten copper alloy

 50W50Cu tungsten copper rods are professionally applied in high-end resistance welding and embedded electrode industries, serving global automated welding and high-current conductive fields:

• INSERT-HDP TIP Embedded Electrode Tip: Special dedicated material for HDP insert electrode assembly

• High-precision Resistance Welding: Spot welding, projection welding and continuous welding electrode for automated production lines

• Automotive & Hardware Precision Welding: Conductive electrode inserts for auto parts and hardware component welding

• High-current Industrial Conductive Components: Stable conductive and heat dissipation parts for high-current electrical equipment

• High-end Custom Electrode Inserts: Special-shaped tungsten copper conductive tips for precision welding systems

Manufacturing & Quality Assurance

Zhuzhou Jiuding Metal is an ISO-certified factory with ISO9001, ISO45001, ISO18001 and ISO13485 qualifications. All  50W50Cu tungsten copper rods are produced under full-process quality control in accordance with GB/T 8320 and ASTM B702 dual standards. From raw material screening, high-temperature sintering to precision finishing and final inspection, every process is strictly controlled. We can provide third-party test reports, COA certificates and EN10204 3.1 inspection reports on request, ensuring full quality traceability and global export compliance.

Packaging & Global Shipping

All  50W50Cu tungsten copper rods are treated with anti-rust oil, wrapped with shockproof bubble film and packed in standard export cartons or wooden cases to avoid oxidation, collision and deformation. We support global sea freight, air freight and international express delivery, providing customized packaging and bulk shipping solutions for HDP electrode material orders to ensure safe and timely delivery worldwide.