bercoweld A35 (AlBz35)

Range of application

For the welding of nickel- aluminum- bronze cast and forge parts in shipbuilding (e.g. ship propeller), for powerplants including valves, sifter, pumps, tube systems as well as for the apparatus engineering and food receptacle. Weld surfacing on steel and AlBz including multi alloys. The welding material is seawater-, corrosion- and wear- resistant (e.g. when seawater, cavitation and erosion are simultaneously affecting the welding material).

Standard designation

ISO 24373	CuAl9Ni5 Cu6328
DIN 1733 Mat. no. 2.0923	SG-CuAl8Ni6
BS 2901P.3	C26Ni
AWS A5.7-84	ERCuNiAl

Composition (weight %)

Cu	balance
Al	8,50-9,50
Ni	4,00-5,00
Fe	3,00-3,50
Mn	1,00-2,00
Others	max. 0,5

Physical standard data

Densitiy	kg/dm3	7,5
Melting range	°C	1015-1045
Thermal conductivity	W / m x K	20-40
Coefficient of linear mean expansion	1/K	10-6
Electrical conductivity	m / Ω x mm2	3-4
Resistivity	Ω x mm2 /m	0,20-0,25

Mechanical properties of the weld joint, standard data

Heat treatment		non treated
Tensile strength	N/mm2	690
Elongation	%	16
Brinell hardness	HB 2,5/62,5	150
Notched bar impact test	Av (J)	68

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