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WELDING FLAME
A neutral flame is used for almost all
gas welding. The oxyacetylene flame
consumes all oxygen in the welding
area which leaves an
uncontaminated weld area and a
weld of maximum strength.
An oxidizing flame is rarely used.
A carbonizing flame is used mainly for
flame hardening and brazing.
Metal
Thickness
(mm)
Tip Size
Rod Size
Oxygen
Pressure
(PSI)
Acety-
lene Pres-
sure (PSI)
Number
of Passes
1.6mm
2
1.6mm
3
3
1
2.4mm
5
2.4mm
5
5
1
3.2mm
5
3.2mm
5
5
1
6.4mm
10
3.2mm
9
9
2
