Classification
- EN ISO 18273 S Al 4018 (AlSi7Mg)
- Material No. 3.2371
Wire Dimensions Available
- MIG Welding Wires [mm] 0,8; 1,0; 1,2; 1,6; 2,0; 2,4
- TIG Welding Rods [mm] 1,6; 2,0; 2,4; 3,2; 4,0; 5,0
Product Availability
- MIG Spools 0.5kg (100mm), 2kg (200mm), 6kg (S300mm), 7kg (B300/BS300), 18kg (400mm), 40kg (400mm) - Vacuum packaging available.
- MIG Welding Wire Bulk drums 80kg and 140kg
- TIG Welding Rods 2.5Kg, 5Kg and 10Kg Packs, length 1000mm
Vacuum foil packaged for protection against condensation which causes porosity in the weld deposit.
MasterWeld MW-4018 AlSi7Mg is a modified 4010 alloy (alloy 4008) with low levels of impurities, specially designed for joining or repairing of 7% Si aluminium cast components like 356.0, A356.0 and A357.0. The mechanical properties can be increased by heat treatment. Thorough cleaning of the workpiece bevels is necessary prior to welding.
Typical composition in %
- Si 6,50 - 7,50
- Fe < 0,20
- Cu < 0,05
- Mn < 0,10
- Mg 0,50 - 0,80
- Zn < 0,10
- Be < 0,0003
- Ti 0,10 - 0,20
- Others < 0,05
- Others total < 0,15
Physical properties of pure weld metal (Approx. values)
- 0,2 % yield strength Rp0,2 [MPa] F: 80, T6: 250
- Tensile strength Rm [MPa] F: 140, T6: 310
- Elongation A5 (Lo=5d0) [%] F: 2, T6: 4
- Test temperature [°C] 20
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MW-4018 AlSi7Mg Aluminium Welding Wire
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