Raw Materials
Material | Prefix | Callout | Example |
Angle | L | L H X W X T X L | L 2 X 3 X 1/8 X 12 |
Beam, Wide Flange | WF | WF H X WT. X L | WF 6 X 15 X 18' |
Beam, I | IB | IB H X WT. X L | IB 3 X 7 1/2 X 15'-6" |
Tube, square & rectangular | TS | TS H X W X T X L | TS 4 X 3 X 3/16 X 45 |
Channel (all types) | C | C H X WT. X L | C 8 X 11.50 X 32 |
Flat Bar (Up to 8” wide) | FB | FB T X W X L | FB 1/2 X 3 X 2 |
Plate | PL | PL T X W X L | PL 3/8 X 8 X 30 |
Round Bar | RB | RB DIA X L | RB Ø1¼ X 6 |
Pipe | P | P ID SCH# X L | P Ø3" SCH40 X 14 |
Sheet, hot rolled | HRS | HRS GA X W X L | HRS 10GA X 3 X 8 |
Sheet, cold drawn | CDS | CDS GA X W X L | CDS 14GA X 4 X 6 |
Notes:
- H = Height, W = Width, T = Thickness, L = Length, GA = Gage
WT. = Weight per foot, OD = Nominal outside diameter,
SCH# = Schedule number (typical is 40) Fractions are common except in Wt. (weight) - You must refer to a steel weights & gauges book for most available sizes and thicknesses of materials
- Bar stock, plate, sheet and many other materials can be hot rolled or cold drawn (pulled thru a die). If not hot rolled you must specify. Example: cold drawn bar, CD FB ½ X 6 X 3
- Tube steel and pipe has a welded seam. If no seam is required, it is DOM or drawn over mandrel. This process flattens the seam.
Example: P DOM Ø6" SCH40 X 28 - Default units for CADD are inches and " (inch) marks are not needed in a BOM.
- If all items in your BOM are inch, no marks are required. For basic sizes of H, W, T, no " marks is required as it is always called out in inches.
- If mixed units, foot and inch on length, use n‘-n”. (Placing " (inch) or ' (foot) marks after the length depends on what is customary in your workplace.)
- " marks are used in pipe size (P Ø6" SCH40 X 28)
GDRIVE; REV F