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STANDARD FABRICATION SPECIFICATIONS
Stainless Steel Pipe and Fittings
| WELDING | Longitudinal seams on the pipe and fittings shall be automatically
welded by Tungsten Inert Gas (T.I.G.) or Metal Inert Gas (M.I.G.)
method. Circumferential welds are made either by "HELIARC" method or with metallic arc process. In the latter case, slag, weld spatter, etc., is removed. "HELIARC" method will be used only when specified by customer. |
| INTERIOR GRINDING |
Unless specifically called for by customer, no grinding will be done provided the interior weld is smooth, even, and not having an internal bead higher than 1/16". |
| SHIPPING | All backing rings on spools, shall be secured to pipe-flanges to prevent damage during shipment. |
| MARKING | All spooled items are marked in shop with drawing and item numbers
- for identification purposes at job site. In addition, the type of stainless steel used shall be clearly marked on each item. |
| INSPECTION | Piping assemblies are inspected for dimensional accuracy. Tolerances will conform to spooling fabrication tolerance sheet. |
Standard Dimensions For Pulling Slip-On Flanges Over Rolled Angles
PIPE GAUGE OR SCHEDULE |
PULL DIMENSION |
| 14 GA. (.078) 12 GA. (.109) 11 GA. (.125) | 1/8" |
| 10 GA. (.140) 8 GA. (.172) 3/16 (.188 Wall) | 3/16" |
| 1/4" Wall | 1/4" |
| 3/8" Wall | 3/8" |
| Sch. 5s Nominal Pipe Sizes 2 1/2" thru 10" | 1/8" |
| Sch. 5s Nominal Pipe Sizes 12" thru 20" | 3/16" |
| Sch. 5s Nominal Pipe Sizes 24" and Up | 1/4" |
| Sch. 10s Nominal Pipe Sizes 2 1/2" thru 6" | 1/8" |
| Sch. 10s Nominal Pipe Sizes 8" thru 18" | 3/16" |
| Sch. 10s Nominal Pipe Sizes 20" thru 28" | 1/4" |
| Sch. 10s Nominal Pipe Sizes 30" and Up | 3/8" |