2 0.5"
0.5" (A)
HEIGHT (B) BASE
Volume of Weld = .5B
x A x 12
Weight of Steel =
.283 lb per cu. in.
Weight of Weld
= (0.5 x 0.5) x 0.5 x 12 x .283
= .424 lb. CALCULATING
THE WEIGHT PER FOOT OF A FILLET WELD In
the fillet weld shown below, the area of the cross-section (the triangle) is equal
to one half the base times the
height, the volume of the weld is equal to the area times the length, and the
weight of the weld then, is the
volume times the weight of the material (steel) per cubic inch.
This example is for a fillet weld with
no reinforcement. Similar calculations can be made for butt or lap joints.
Deposition Efficiency
The deposition efficiency of an electrode
or welding wire indicates the portion of that product you can
expect to be deposited as weld metal.
Losses due to slag, spatter, fume and in the case of semi automatic
or automatic welding processes, the
ends cut before each weld and the wire left in the feed cable make no
process 100% efficient.
For estimates of electrode
or wire consumption, the following average
values of deposition efficiency may be used.
Deposition Process
Efficiency Submerged
Arc 99%
Gas Metal Arc (98%A, 2%O2)
98% Gas
Metal Arc (75%A, 25%CO2)
96% Gas
Metal Arc (C02) 93%
Metal Cored Wires
93% Gas
Shielded Flux Cored Wires 86%
Self Shielded Flux Cored Wires
78% *
Shielded Metal Arc (Stick 12" long)
59% *
Shielded Metal Arc (Stick 14" long)
62% *
Shielded Metal Arc (Stick 18" long)
66% *
Includes 2" stub loss.
