Page 42 - Estimators Piping Man Hour Manual

Section One-SHOP FABRICATION 25

MANUAL LARGE O.D. BUTT WELDS

Labor for Welding Only
Carbon Steel Material

NET MAN HOURS EACH
O.D, WALL THICKNESS IN INCHES
PIPE
INCHES .375 .500 .750 1.00 1.25 1.50 1.75 2.00
26 7.1 9.7 12.8 17.1 22.6 29.2 36.8 44.5
28 8.5 11.1 13.9 18.8 24.8 31.6 39.3 47.2
30 10.6 12.9 16.0 20.4 26.9 33.7 42.0 49.9
32 13.1 15.2 18.2 22.6 29.6 36.4 44.7 52.6
34 16.4 18.2 20.7 25.0 33.3 39.1 47.7 55.4
36 19.5 20.9 23.6 28.1 38.3 44.1 52.8 60.8
38 22.9 24.5 27.1 31.4 44.1 49.8 58.1 66.2
40 26.8 29.0 31.2 35.2 50.6 56.2 63.9 72.2
42 31.3 34.2 36.0 39.5 58.3 63.6 70.2 78.7
44 36.3 39.5 42.3 48.3 63.5 70.5 76.5 85.8
46 40.9 45.0 49.4 57.5 70.1 77.5 83.3 92.9
48 46.2 50.8 57.7 67.0 77.0 84.7 90.5 100.1
54 52.0 57.3 67.4 78.1 84.5 92.6 98.3 107.9
60 58.5 64.6 78.7 91.0 92.8 101.2 106.8 1 16.3

2.75 2.50 2.75 3.00 3.25 3.50 3.75 4.00
26 52.3 72.0 81.6 93.2 104.7 117.4 135.3 1 152.9
28 55.1 77.1 88.5 99.6 117.1 127.4 148.1 i 165.4
30 57.9 84.3 95.7 107.2 122.2 136,5 157.0 177.4
32 60.5 88.1 100.8 112.6 129.7 144.2 166.9 188.9
34 65.2 93.2 107.2 120.5 136.8 152.9 177.4 201.6
36 70.3 99.6 114.3 127.7 145.5 162.9 188.6 211.9

4.25 4.50 4.75 5.00 5.25 5.50 5.75 6.00
26 172.3 191.4 206.7 221.8 234.6 252.7 274.3 293.0
28 186.3 207.5 221.5 237.4 253.9 272.9 292.8 311.4
30 199.1 219.0 238.6 255.2 273.1 291.0 314.5 339.0
32 211.9 234.8 252.7 270.6 291.0 310.0 334.4 359.9
34 227.2 252.7 270.6 288.9 310.9 331.8 357.3 382.8
36 239.4 265.4 285.9 305.8 328.0 349.7 377.7 405.3

For General Notes on welding, see pages 20 and 23.