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CuBe2 Beryllium Copper

CuBe2

  • ENCW101C
  • DIN2.1247
  • UNSC17200
  • RWMAClass IV

Copper-beryllium alloy reaching the highest strength and hardness among copper alloys. Combines high thermal and electrical conductivity with spring properties and wear resistance. Non-magnetic and non-sparking.

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01Applications

  • Inserts in fast-cooling areas of plastic molds
  • Base plates and neck rings in plastic bottle molds
  • Nozzles for hot runner systems
  • Butt welding electrodes (wheel covers, chain welding)
  • Safety tools, being non-magnetic and non-sparking

02Heat Treatment

Typical values

Solution treatment
760–800 °C; water quench
Ageing
315–345 °C, 2–3 h
After ageing
≈ 36–42 HRC (380–430 HB)
Electrical conductivity
≈ 22–28 % IACS
Delivery condition
Mill-hardened (TH04/AT) or solution treated (TB00/A)

Heat treatment cycle (schematic)

0200400600800Solution treat780°1. Solution treat — 780 °C2. Quench — 25 °CAge330°3. Age — 330 °C4. Cool — 25 °CTime (schematic, not to scale)°C
Stages and temperatures are typical values; soaking times depend on section size.

Ageing diagram (approximate)

102030405001002003004005006007000 °C → 20 HRC260 °C → 34 HRC290 °C → 38 HRC315 °C → 41 HRC330 °C → 41.5 HRC345 °C → 40 HRC370 °C → 37 HRC400 °C → 33 HRC41.5 HRCAgeing temperature (°C)Hardness (HRC)
Hardness after solution treatment and 3 h ageing (approximate).

Values are approximate and for information only; they vary with section size, heat and furnace conditions. Binding values are determined from the manufacturer’s data under laboratory conditions.

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