supply of domestically produced tu2 precision oxygen-free copper board, t1 high-purity sheet copper, chamfered and cnc-machined. 供应国产TU2精密无氧铜板 T1高纯紫铜板 倒角 CNC精雕加工

Chemical composition:

Copper Cu: ≥99.9%

Oxygen O: ≤0.02%

Arsenic AS: ≤0.02%

Zinc Zn: ≤0.005%

Lead Pb: ≤0.03%

Boron P : ≤0.01%

Iron Fe: ≤0.15%

Beryllium Sb: ≤0.002%

Bismuth Bi: ≤0.002%

Note: (Impurities) ≤0.5%

Mechanical Properties:

Tensile strength: ≥295 (Y in hard state)

Stretch Ratio A1: 1.3%/%: ≥8 (Y2)

Note: Mechanical properties of room temperature stretching for other sheets except those used for locks and clocks

Sample dimensions: thickness > 2.0～4.0

Heat treatment specifications: Thermal processing temperature 650～850℃;

Annealing temperature: 500～700℃;

Low-temperature annealing temperature for eliminating internal stress: 270～300℃.

Conductivity / %IACS is 100

Vickers hardness (HV): ≥80 (Y state)

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