Page 175 - Estimators Piping Man Hour Manual

158 Section Three-ALLOY AND NON-FERROUS FABRICATION

Fabrication of alloy and non-ferrous piping is to be figured on the same basis as for corresponding operation on
carbon steel materials, plus the percentage given below applicable to the carbon steel man hour schedules.

WELDED ATTACHMENTS AND DBILLING HOLES IN
WELDED ATTACHMENTS

MATERIAL CLASSIFICATION-GROUP NUMBERS AND PERCENTAGES
i nicKness 01
mi ' I f
Plate, Angle Group Group Group Group Group Group Group Group Group
Etc., Inches 1 2 3 4 5 6 7 8 9
1/2 or less 21.0 29.0 40.0 43.0 16.0 53.0 98.0 49.0 62.0
3/4 21.5 29.5 40.5 43.5 16.5 53.5 102.0 49.5 62.5
1 22.0 30.0 41.0 44.0 17.0 54.0 106.0 50.0 63.0
1-1/4 22.5 30.5 41.5 44.5 17.5 54.5 110.0 50.5 63.5
1-1/2 23.0 31.0 42.0 45.0 18.0 55.0 115.0 51.0 64.0
1-3/4 24.0 32.0 43.0 46.0 19.0 56.0 120.0 52.0 66.0
2 25.0 33.5 45.0 47.5 20.0 58.0 125.0 54.0 69.0
2-1/2 26.5 35.0 47.0 50.5 22.0 59.0 129.0 56.0 73.5
3 27.5 37.0 49.5 52.0 23.0 61.0 132.0 58.0 76.0
3-1/2 29.0 39.0 52.5 55.0 24.5 65.0 134.0 59.5 79.0
4 30.0 40.0 54.0 57.0 25.0 68.0 135.0 61.0 82.5

ASTM A335-P1 .50% Moly
Stainless Steels
GROUP
ASTM A335-P2 .50-.70% Chr.
4 Types 304, 309, 310, 316
(including "L" & "H" Grades)
GROUP ASTM A335-P12 .85-1.10%Chr.
1
ASTMA335-P11 1.05- 1.45% Chr.
GROUP Copper, Brass, Everdur
ASTM A335-P3 1.50-2.00% Chr. 5
ASTM A335-P3b 1.75-2.25% Chr.
ASTMA-333-GR-1
ASTM A335-P22 2.00-2.50% Chr.
GROUP
GROUP ASTM A-333-GR4
2 ASTMA335-P21 2.75-3.25% Chr. 6
ASTM A-333-GR9
ASTM A335-P5,b,c 4.00-6.00% Chr.
ASTM A335-P7 6.00-8.00% Chr. GROUP Hastelloy, Titanium, 99% Ni.
7
ASTM A335-P9 8.00- 10.00% Chr. GROUP Stainless Steels Types 321 & 347, Cu-Ni,
GROUP 8 Monel, Inconel, Incoloy, Alloy 20
3 Ferritic Chromes 10.00-15.00% Chr.
GROUP
ASTM A333 Gr. 3 3.50% Nickel 9 Aluminum