Analysis of TTe0.5-0.008 Copper Material

I. Material Classification and Composition

Type Classification

TTe0.5-0.008 belongs to tellurium-bearing phosphorus deoxidized copper alloy, a specific grade of tellurium copper, with tellurium (Te) and phosphorus (P) as the primary alloying elements.

Chemical Composition

Tellurium Content: Approximately 0.5% (key element for controlling machinability).

Phosphorus Content: Trace addition (about 0.008%), used for deoxidation and improving processing performance.

Copper Content: Balance (≥99.2%), ensuring high electrical conductivity.

II. Core Characteristics

Processing Performance

Machinability: Tellurium forms brittle telluride phases, significantly enhancing cutting efficiency (suitable for precision turning and stamping).

Cold/Hot Workability: Can be processed into various forms such as tubes, rods, and sheets, meeting the needs of complex part forming.

Physical and Mechanical Properties

Electrical/Thermal Conductivity: Electrical conductivity ≥85% IACS (superior to ordinary copper alloys), thermal conductivity suitable for heat dissipation applications.

Tensile Strength: Approximately 350 MPa in solution-treated state, with higher strength achievable after cold working (specific to the process).

III. Typical Applications

Plumbing and Pipeline Systems

Plumbing fittings, hollow pipes, etc., utilizing its corrosion resistance and ease of processing.

Electronics and Electrical Industry

Electrical connectors, conductive terminals, balancing electrical conductivity and machining precision.

Mechanical Manufacturing

Threaded fasteners, precision stamped parts (such as hexagonal bars, strips), meeting high-precision machining requirements.

IV. National Standards and Process Compatibility

Applicable Standards

Complies with national standards (e.g., GB/T 5233), labeled as TTe0.5-0.008 tellurium copper, with composition similar to the American standard TTe0.5.

Processing Recommendations

Control deformation during cold working to avoid excessive cold work hardening; machining can reduce tool wear and improve efficiency.

Note: Due to the phosphorus deoxidation process, oxidation protection is necessary in high-temperature environments to prevent performance degradation.