Table 2 Mechanical properties of Hastelloy B2 and Copper electrode.

From: An experimental investigation on copper square electrode wear in electric discharge machining of Hastelloy B2

Hastelloy B2

Copper electrode

Density (g/cm3)

9.2

Density (g/cm3)

8.96

Melting temperature ( ℃)

1370

Thermal conductivity (W/m K)

380.7

Elongation to break (%)

40

Melting point (℃)

1083

Thermal conductivity(W m−1 K−1)

11.1

Specific gravity at 20 ℃ (g/cm3)

8,9

Specific heat(J g−1 C−1)

0.389

Coefficient of thermal expansion (× 10−6/℃)

6.6