Structural steel man-hours

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Structural member
kg/m
Plate thickness
mm
 
Fabrication man-hours
Structural member 0.0 mhr/t
Plate fabrication 0.0 mhr/t
 
Erection/installation man-hours
Structural member installation 0.0 mhr/t
Plate installation 0.0 mhr/t
 
Alloy Man-hour Adjustments
Material Classification Groups
LABOR OPERATIONS123456789
BENDS 1.25 1.25 1.25 1.25 1.25 1.25 2.75 1.75 1.25
WELDS 1.5 1.75 2.25 1.75 1.75 1.75 2.75 2.75 2.75
LOCAL STRESS RELIEF 1.25 1.25 1.25 - - - - - -
 
GROUP 1   GROUP 4GROUP 8
ASTM A335-P1 .50%Moly Stainless Steels Stainless Steels - Types 317, 321, 347
ASTM A335-P2 .50-.70% Chrome Types 304, 309, 310, 316, Duplex Copper-Nickel
ASTM A335-P12 85-1.10% Chrome (including "L" & "H" Grades) Monel
ASTM A335-P11 1.05-1.45% Chrome   Inconel
ASTM A335-P3 1.50-2.00% Chrome GROUP 5 Incoloy
    Copper and Brass Alloy 20
GROUP 2     HF Modified
ASTM A335-P3b l.75-2.25% Chrome GROUP 6  
ASTM A335-P22 2.00-2.50% Chrome Low Temp Carbon Steel (see Note 5) GROUP 9
ASTMA335-P21 2.75-3.25% Chrome ASTM A333 Gr. 1 (see Note 6) Aluminium
ASTM A335-P5.b.c 4.00-6.00% Chrome ASTM A333 Gr. 4  
    ASTM A333 Gr. 9 (see Note 6)  
GROUP 3      
ASTM A335-P7 6.00-8.00% Chrome GROUP 7  
ASTM A335-P9 8.00-10.00% Chrome Hastelloy  
Ferritic Chromes 10.00-15.00% Chrome Titanium  
ASTM A333 Gr. 3 3.50% Nickel 99% Nickel  
 
ALLOY MATERIAL ADJUSTMENT NOTES
1. Apply the appropriate multiplier above to the corresponding Carbon Steel labor operation.
2. Adjustments shown above apply to all wall thicknesses.
3. The molybdenum content in alloys listed in Groups 1 through 3 inclusive, shall not exceed 1%.
4. Adjustments for alloys other than those listed above will have to be researched. Consult Piping lead engineer.
5. Low Temp Carbon Steel type ASTM-A333 Gr. 6 is standard Carbon Steel material and alloy adjustments do not apply.
6. Where standard Carbon Steel welding procedures and filler metal can be used, alloy adjustments will not apply to Low Temp Carbon Steel types ASTM A333 Gr. 1 and ASTM A333 Gr. 9. Consult Piping lead engineer.

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