Page 56 - Estimators Piping Man Hour Manual

Section One-SHOP FABRICATION 39

FLAME CUTTING PIPE—PLAIN ENDS

Labor For Straight Pipe Only
Carbon Steel Material

NET MAN HOURS EACH
Standard Extra Hvy.
Pipe Pipe& Pipe& SCHEDULE NUMBERS
Size O.D. Sizes O.D. Sizes
Inches 3/8" Thick 1/2" Thick 20 30 40 60 80 100 120 140 160

2" or Less 0.09 0.13 - - 0.09 .. 0.13 - „ 0.18
2-1/2 0.10 0.15 -- - 0.10 -- 0.15 -- -- 0.20
3 0.13 0.18 -- .. 0.13 -- 0.18 -- -- 0.24
4 0.18 0.24 -- 0.18 -- 0.24 -- 0.33 0.36
5 0.21 0.31 -- -- 0.21 0.31 -- 0.38 ... 0.43
6 0.29 0.38 ' -- -- 0.29 -- 0.38 -- 0.49 -- 0.55
8 0.40 0.56 0.40 0.40 0.40 0.51 0.56 0.66 0.75 0.84 0.99
10 0.56 0.80 0.56 0.56 0.56 0.80 0.86 0.95 1.08 1.24 1.50
12 0.61 0.95 0.61 0.61 0.75 1.13 1.19 1.29 1.50 1.66 1.78
14O.D, 0.85 1.13 0.85 0.85 1.00 1.25 1.45 1.55 1.70 2.00 2.10

16 O.D. 0.95 1.40 0.95 0.95 1.40 1.55 1.65 1.85 2.00 2.25 2.55
18O.D. 1.20 1.70 1.20 1.40 1.70 1.90 2.00 2.25 2.40 2.70 3.15
20 O.D. 1.45 1.90 1.45 1.95 2.10 2.25 2.40 2.65 2.80 3.25 3.70
24 O.D. 2.20 2.80 2.20 2.95 3.10 3.25 3.35 3.65 4.05 4.55 5.15

For mitre cuts less than 30°, add 50% to the above man hours.
For mitre cuts 30° or greater, add 100% to the above man hours.
Man hours are for cutting pipe with plain ends only and do not include beveling, threading, etc. See appropriate
man hour tables for these operations and time requirements.
For cutting the ends of bends or trimming fittings, add 50% to the above man hours.