Bostrand 2861          
AWS A/SFA 5.10-92       : ER5556

Description and applications

Bostrand 2861 is an aluminium 5.3% magnesium solid MIG wire for welding parent materials of similar composition (as shown in the above table). The corrosion resistance of the weld metal in a marine environment is high. Preheating is not required for welds in sections up to 20mm thick, but the risk of porosity can be reduced by preheating sections over 10mm thick. Recommended preheat temperature is usually 150-200°C. Appropriate for welding AlMg4.5Mn, AlMg3, AlMg2Mn0.8, AlMg2.7Mn parent materials.

All-weld mechanical properties - as welded using: Argon or Argon/Helium
Yield stress                                                125 min    MPa
Tensile strength                                          275 min   MPa
Elongation                                                  17 min     %
Chemical composition (wire)
Si        0.25 max
Mn      0.6-1.0
Mg      5.0-5.5
Cr       0.05-0.2
Fe       0.40 max
Ti        0.05-0.20
Al        balance
Welding parameters   
Size Current mm amps 1.2
130-200

Murex Welding Products
Hanover House, Queensgate, Britannia Road,
Waltham Cross, Herts, EN8 7TF
Telephone: (01992) 710000 Fax (01992) 719191