Page 41 - Estimators Piping Man Hour Manual

24 Section One-SHOP FABRICATION

MANUAL HEAVY WALL BUTT WELDS

Labor for Welding Only
Carbon Steel Material

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 2.3 3.1 „
4 2.8 3.5 4.8 5.8 - .. 1
5 „ 4.0 5.7 6.8 8.5 10.5 „ ..
6 .. 5.4 7.2 8.8 11.3 13.2 15.4 ..
8 - 7.4 8.6 11.1 14.0 16.3 19.2 23.2
10 .. .. 11.4 13.7 17.0 19.7 23.1 27.2
12 „ - 16.6 19.7 23.2 27.5 31.8
14 „ - - 19.9 22.5 26.4 30.9 36.5
16 - 25.3 30.2 35.2 42.1
18 ., - - 33.7 39.3 46.4
20 - - ., 39.3 46.4 56.1
_
22 - - .. 61.3
24 -- - 66.7
2.75 3.00 3.25 3.50 3.75 4.00 4.25 4.50
10 31.1 35.7 ^ „ „ .. .,
—
12 36.3 41.6 46.9 53.5 .. ...
14 41.4 47.0 53.3 60.4 | 68.8 77.2 ..
16 47.7 54.8 61.8 70.2 80.8 91.2 ..
18 53.3 61.8 70.2 80.5 91.9 105.2 j
20 63.9 71.6 82.1 92.6 105.2 119.3 135.3 146.7
22 69,8 78.6 89.4 101.1 114.9 130.6 148.1 163.9
24 75.8 83.9 96.9 109.5 124.9 141.9 160.8 177.4
4.75 5.00 5.25 5.50 5.75 6.00
20 160.8 172.3 183.8 191.4 213.1 227.2
22 173.6 186.3 203.9 214.1 234.6 250.1
24 189.4 203.9 222.8 233.5 252.7 270.3
For Genera! Notes on welding, see pages 20 and 23.