Page 144 - Estimators Piping Man Hour Manual

Section Two-FIELD FABRICATION 127

HEAVY WALL LOCAL STEESS BELIEVING

Butt Welds

Carbon Steel Material
Temperatures To 1400°F

NET MAN HOURS EACH
Nominal WALL THICKNESS IN INCHES
Pipe
Size .750 1.00 1.25 1.50 1.75 2.00 2.25 2.50
_
3 5,1 5.4 .. „ „ „ ..
4 5.4 5.9 6.4 6.8 .. - -- ,.
5 -- 6.3 6.7 7.2 7.6 8.2 -- -
6 - 6.7 7.2 7.8 8.2 9.0 9.7 .,
8 - 7.4 7.8 8.4 8.9 9.5 10.1 10.8
10 - - 8.1 8.8 9.2 9.8 10.3 11.2
12 - - - 9.0 9.6 10.3 10.8 11.5
14 .. - .. 9.6 10.3 11.2 11.6 12.3
16 - - - .. 10.8 11.6 12.3 13.1
18 - - - .. .. 12.3 13.1 14.0
20 - .. .. - ... 13.3 14.3 15.2
_
22 - - .. .. ,_ - 16.4
24 -- -- -- -- -- - -- 17.7
2.75 3.00 3.25 3.50 3.75 4.00 4.25 4.50
10 11.9 12.5 „ .. „ .. .. ..
12 12.3 13.2 14.0 15.0 .. - .. -
_
14 13.2 14.1 15.0 16.1 16.9 18.1 ..
16 14.0 15.0 16.0 16.9 18.1 19.3 .. ..
18 15.0 16.0 16.9 18.3 19.4 20.6 .. ..
20 16.2 17.4 18.4 19.6 21.2 22.7 24.3 25.9
22 17.4 19.2 20.0 21.3 22.8 24.3 25.9 27.4
24 18.9 20.1 21.5 22.9 24.5 26.0 27.6 29.1
4.75 5.00 5.25 5.50 5.75 6.00
20 27.4 29.0 30.5 32.1 33.7 35.3
22 29.0 30.6 32.1 33.7 35.3 36.9
24 30.6 32.2 33.7 35.3 36.8 38.4

For General Note/*, see the bottom of page 126.