Cu-a1(Cu-ETP)

 

Used for the manufacturing of wires, sheets, plates, sections and coils for electrical usings, it is the most usual quality. It is sometimes called "electrolytic copper".

It is sensitive to heating in a reducing atmosphere, that requires some restrictions during the heat treatments and welding, especially with a welding torch.

 

Chemical compound (NFA 51-050)

Type
Cu mini en %
Max. electrical resistivity at 20 °C at annealing condition (C % IACS min)
Electrolytically refined, not deoxidized, with a guaranteed conductivity.

99,9

1,7241 µOhm.cm (100% IACS)

 

Mechanical characteristics of rolled products (NFA 51-100):

State

Rm en N/mm²

 A % mini

Hardness HV

O

mini 200

30

65

H11

de 230 to 280

20

de 55 to 80

H12

de 260 to 320

10

de 75 to 105

H14

mini 300

-

mini 100

 

Physical characteristics of rolled products (NFA 51-100):

Melting temperature (liquidus) in °C

Temperature of incipient meltng (solidus) in °C

 Mass volume in g/cm3
Electrical resistivity at   20 °C in µOhm.cm
 Conductivity in % IACS

Heat condictivity at 20°C in W/m.K

1083

1065

8,89 to 8,94

1,682 to 1,7241

100 to 102,5

400 to 412

 

Mechanical characteristics of bars and wires (NFA 51-118):

State

Rm en N/mm²

 A % mini
Rp0,2 en N/mm²i

Hardness HBS

O

mini 200

mini 32

maxi 120

maxi 60

H11

mini 230

mini 20

mini 150

55 to 75

H12

mini 250

mini 14

mini 200

70 to 95

H14

mini 300

mini 5

mini 250

mini 85

 

Mechanical characteristics of sections (NFA 51-119):

State

Max thickness

Rm en N/mm²

 A % mini
Rp0,2 en N/mm²i

Hardness HBS

O

-

mini 200

mini 38

maxi 120

45 to 70

H12

14

mini 250

mini 14

mini 200

70 to 95

H14

8

mini 300

mini 7

mini 250

85 to 115