ASTM A312 / A213 /A270 Stainless Steel Pipe Seamless Pipe / Welded
Pipe Grade 304 316L 310S 321 347 317L
| Stainless Steel Pipe |
| Form | Welded and Seamless in Round. |
| Application | Fluid & Decorative. |
| Size Range | DN15 – DN600. |
| Grades | 304 309S 310S 316L 317L 347 321 2205 2507 904L.etc |
| Wall Thickness | SCH10 SCH40 SCH80 SCH160 or other un-standard thcikness |
| Fittings | Butt Weld, Screwed & Socket Flanges (ANSI, Table E & Table D). |
| Processing | Cut-to-length & polishing. |
Stainless Steel Piping Systems
A stainless steel pipe system is the product of choice for carrying
corrosive or sanitary fluids, slurries and gases, particularly
where high pressures, high temperatures or corrosive environments
are involved. As a result of the aesthetic properties of stainless
steel, pipe is often use in architectural applications.
Stainless steel pipe can generally be defined as a heavy wall
thickness tubing, with dimensions as specified by the American
National Standards Institute (ANSI). Pipe dimensions are nominated
by outside diameter indicated by the NPS (imperial) or DN (metric)
designator and sometimes referred to as the ‘nominal bore’ – and
wall thickness, is determined by the schedule number. The standard
ASME B36.19 covers these dimensions.
Stainless steel pipe and fittings are supplied in the annealed
condition to facilitate fabrication and ensure best corrosion
resistance. Atlas Steels can also supply stainless steel pipe with
an abrasive polished finish suitable for architectural
applications.
Welded pipe
Welded stainless steel pipe is manufactured from 2B or HRAP
stainless steel strip – formed (to shape) and longitudinally welded
to completed pipe. With the exception of very large pipe welds are
made without the addition of filler metal. Standard welded pipe is
in nominal lengths of 6.0 to 6.1 metres.
Manufacturing specification:
- ASTM A312M – Austenitic
- ASTM A358M – Austenitic (large diameter)
- ASTM A790M – Duplex.
Seamless Pipe
Seamless stainless steel pipe is produced from hollow billets,
which are then drawn across dies until they reach the final desired
pipe size and wall thickness. Standard seamless pipe is in random
lengths of 6.0 to 7.5 metres.
Manufacturing specification:
- ASTM A312M – Austenitic.
- ASTM A790M – Duplex
