Page 63 - Estimator's Piping Man-Hour Manual 5E

46 Section One-SHOP FABRICATION

MACHINE BEVELING PIPE FOR WELDING

"U" Type, "V" Type And Double-Angle Bevels

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 0.33 0.36 .. .. 0.33 .. 0.36 „ .. .. 0.87
2-1/2" 0.34 0.37 -- -- 0.34 -- 0.37 - -- 0.91
3 0.36 0.39 -- -- 0.36 -- 0.39 - -- .. 0.93

4 0.39 0.42 .. - 0.39 -- 0.42 -- 0.72 0.99
5 0.40 0.50 -- -- 0.40 0.50 0.78 1.06
6 0.46 0.59 -- .. 0.46 -- 0.59 -- 0.83 .. 1 16
8 0.63 0.91 0.63 0.63 0.63 0.81 0.91 1.05 1.18 1.32 1.87
L
—
10 0.91 1.26 0.91 0.91 0.91 1.26 1.36 1.50 1.69 12.34 2.83
.| •
12 0.97 1.50 0.97 0.97 1.18 1.77 1.87 2.03 1 2.83 3.14 3.35
14O.D. 1 .34 1.77 1.34 1.34 1.57 1.97 2.28 2.93 3.21 3.78 3.97
16 O.D. 1.50 2.20 1.50 1.50 2.20 2.44 2.60 3.50 3.78 4.25 4.82
18O.D. 1.89 2.68 1.89 2.20 2.68 2.99 3.21 4.25 4.54 5.10 5.95
20 O.D, 2.28 2.99 2.28 3.07 3.31 3.54 4.54 5.01 5.29 6.14 6.99
240.D. 3.46 4.41 3.46 4.65 4.88 6.14 6.33 6.90 7.65 8.60 9.73

For bevels on the ends of bends or shop trimmed fittings, or mitre bevels, add 50% to the above man hours.
For "lip" bevels, add 50% to the above man hours.
For rolled down "lip" bevels, add 75% to the above man hours.
Above man hours are for machine beveling only and do not include cutting or internal machining. See respective
man hour tables for these charges.
All pipe sizes shown below the ruled line have a wall thickness greater than 7/8" and must have U-type or double
angle bevels in accordance with ANSI and ASME codes for pressure piping. Sizes above the ruled line are 7/8" wall
thickness or less. The man hours shown above the ruled line are for bevels as required for inert arc root pass
welding.