bercoweld N30 (CuNi30Fe)

bercoweld N30 (CuNi30Fe)

Range of application

Particularly suitable for high stressed corrosion resistant weld surfacing on cast iron and on unalloyed and low- alloyed steel as well as seawater resistant CuZn alloys. Suitable for welding on CuNi materials. Particularly recommended for the plant engineering.

bercoweldN30.pdf

Standard designation

ISO 24373

CuNi30 Cu7158

DIN 1733
Mat. no. 2.0837

SG-CuNi30Fe

BS 2901P.3

C18

AWS A5.7-84

ERCuNi

Composition (weight %)

Cu

balance

Ni

30,70-31,30

Mn

0,60-1,00

Fe

0,40-0,70

Ti

0,30-0,50

Others

max. 0,5

Physical standard data

Density

kg/dm3

8,9

Melting range

°C

1180-1240

Thermal conductivity

W / m x K

30

Coefficient of linear mean expansion

1/K

10-6

Electric conductivitiy

m / Ω x mm2

3

Resistivity

Ω x mm2 /m

0,333

Mechanical properties of the weld joint, standard data

Heat treatment

 

non treated

Tensile strength

N/mm2

420

Elongation

%

36

Brinell hardness

HB 2,5/62,5

115

Notched bar impact test

Av (J)

240

Delivery programme

Make-up

Weight/Length

Dimension

Drum / bedrabox

175 - 200 kg

0,80 - 1,60 mm

SD300 / BS300 / K300

12 - 15 kg

0,80 - 2,40 mm

H500 / H560 / H760

150 - 250 kg

0,80 - 2,40 mm

Coils

25 - 100 kg

1,60 - 6,00 mm

Rods

250 - 3000 mm

1,60 - 6,00 mm

Further make ups on request.

Recommended inert gas

Argon

4.8/ 5.0/ 5.3/ 5.6/ 6.0

 

 
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