Copper T2

T2 is a Chinese high-purity copper designation used where electrical or thermal conductivity is a primary requirement. It may be considered for bus components, electrodes, cold plates and conductive interfaces, subject to the correct product form, condition and certificate.

Copper is ductile, dense and highly conductive, but it can be demanding to machine because it tends to smear, form burrs and carry heat. The design must distinguish conductivity requirements from mechanical strength and include environmental or surface-protection needs.

Scope note: This article explains general material behavior. It is not a statement that every form, temper or grade is held in stock. AYBERK confirms sourcing, process capability and project requirements through manual RFQ review.

T2 copper can produce long, ductile chips and built-up edge. Sharp positive geometry, effective lubrication, secure but nonmarking workholding and planned deburring help maintain edges and small features.

Avoid extremely thin unsupported fins and tiny burr-sensitive holes. Provide tool access to channels and define flatness after any brazing or thermal cycle. Mark electrical contact surfaces and prohibited coatings.

Final feeds, speeds, tooling, coolant, workholding and inspection are process decisions made from the drawing and the verified stock. General guidance here does not replace a project-specific manufacturing review.

State T2, product form, condition, conductivity or certificate requirements, contact finish and any brazing or leak-test requirement. Do not use a generic copper note for a controlled electrical part.

Where properties are safety-critical, specify the governing standard, lot documentation and required test evidence. Dimensional and cosmetic requirements should be separated so they can be inspected at the correct production stage.

T2 is high-purity copper with limits on oxygen and impurities defined by the governing Chinese standard. Certified chemistry, not color, establishes grade.

Reference framework: GB/T 5231 copper grade designation plus the applicable plate, bar or tube product standard The purchase document and material certificate govern; this overview is not a certificate of conformity.

Avoid extremely thin unsupported fins and tiny burr-sensitive holes. Provide tool access to channels and define flatness after any brazing or thermal cycle. Mark electrical contact surfaces and prohibited coatings.

Geometry-specific decisions include stock allowance, support, cutter reach, burr control, thermal management and the point at which critical dimensions are verified. Share expected quantity and finishing requirements with the drawing.

Choose T2 when conductivity drives the design. Compare brass H59 where strength, appearance and machinability balance is more important than maximum conductivity, or aluminum where lower mass is critical.

If an alternative is acceptable, state the performance priorities instead of naming an uncontrolled substitute. Any alternative remains subject to customer approval.