Page 207 - Welding of Aluminium and its Alloys

190 The welding of aluminium and its alloys

Table 10.5 Parent metal ‘P’ number grouping

Group no. Alloys in group

P21 1060, 1100, 3003
P22 3004, 5052, 5154, 5254, 5454, 5652,
P23 6061, 6063,
P25 5083, 5086, 5456,

Table 10.6 Filler metal grouping

F number Filler metals in group

F21 E/ER1100, ER1188, E3003
F22 ER5554, ER5356, ER5556, ER5183, ER5654
F23 ER4009, ER4010, ER4043, ER4047, ER4145, ER4643
F25 ER2319

Table 10.7 Test pieces and approval range

Test piece Range of Range of weld Test specimens
thickness thickness ‘T’ metal thickness t
approved approved

<1.6mm T to 2T 2t 2 cross joint
tensiles 2 root 2 face bends
1.6–9.6mm 1.6mm to 2T 2t 2 cross joint tensiles
2 root 2 face bends
>9.6–19.2mm 4.8mm to 2T 2t (t < 19.2mm) 2 cross joint tensiles
2T (t ≥ 19.2mm) 4 side bends
38.1mm and over 4.8mm to 2t (t < 19.2mm) 2 cross joint tensiles
203.2mm 203.2mm 4 side bends
(t ≥ 19.2mm)

depending upon the test piece thickness as in Table 10.7. Fillet welds can
be approved by fillet test pieces sectioned to provide macro sections
only. The thickness range approved is unlimited.
• The welding position and the welding preparation are not essential
variables.
• The addition or deletion of or a change in the shielding gas in the gas
shielded processes requires a re-approval.
• The approval is limited to the manufacturer and sites under his or her
direct control.