bercoweld A52 (AlBz5Ni2)

Range of application

CuAl alloys, e.g. Al-bronze with 5-6% Al, copper and copper alloys. It is highly suitable for hard-soldering and welding galvanized steels. It possesses very good anti-corrosion and anti-wearing properties. It is recommended that large work pieces be pre-heated.

Standard designation

ISO 24373	CuAl5Mn1Ni1 Cu6061 (acc. to)

Composition (weight %)

Cu	balance
Al	4,5 - 5,0
Ni	1,6 – 2,0
Mn	0,1 – 0,5
Others	max. 0,5

Physical standard data

Density	kg/dm3	8,2
Melting range	°C	1060-1085
Thermal conductivity	W / m x K	61
Coefficient of linear mean expansion	1/K	17,5 x 10-6
Electrical conductivity	m / Ω x mm2	8,0-8,8
Resistivity	Ω x mm2 /m	0,114-0,125

Mechanical properties of the weld joint, standard data

Heat treatment		non treated
Tensile strength	N/mm2	ca. 420
Elongation	%	ca. 45
Brinell hardness	HB 2,5/62,5	80

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