Elecu® BCuAl

General description

Base electrode for welding of aluminum alloys, and also wearproof and corrosion-resistant coverings on steel, cast steel, and cast iron, especially on blanks which are subject to erosive wear. The electrode is also suitable for filling of defects of casting on aluminum (bronze casting), can be used as the bearing material for the high pressure loading. Mechanical properties of deposit are very good, with acid environments, in sea water, erosive resistance. This electrode can be used as a component in the worn-out details, for example, as bearings of sliding and slide tracks.

Current type

DC electr. +

Application advice

Annealing for 2h at 200-250оС. Joints before welding must be clean from oil and cracks.

Welding must be with a short arc and without high power.

Classification

AWS A5.6

:ECuAl-A2

DIN 1733

:E L-CuNi 30Mn

Welding positions

      

Materials to be welded

Material

W.Nr.

CuAl5

2.0916

G-CuAl9

2.0928

CuAl8

2.0920

CuZn20A2

3.0460

Chemical composition (w%), typical, all weld metal

Al

Mn

Fe

Cu

Si

7.5

0.5

<0.5

91.0

0.5

 

Mechanical properties, all weld metal

 

Condition

0.2% Yield Strength
(N/mm2)

Tensile Strength (N/mm2)

Elongation (%)

Hardness

НВ

Required

DIN 1733

AW

min 150

390-450

max 45

130

Typical values after welding

AW

400

660

15

150