Stainless Steel Pipe

Stainless Steel Pipe

        Welded Pipe                   Seamless Pipe                        Ornament Pipe

Product Stocking and Processing
Stainless Steel Pipe
Welded and Seamless in round
Fluid, Decorative
Size Range
DN6 - DN600
304/304L, 316/316L, 2205
Wall Thickness
Sch 10S, 40S, 80S
Butt weld, Screwed & socket flanges
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

Stainless Steel Pipe Product Specification
ASTM A312/A312M
Seamless and welded austenitic stainless steel pipe.
ASTM A358/A358M
Electric-Fusion-Welded (EFW) austenitic chromium-nickel alloy steel pipe for high temperature service.
ASTM A409/A409M
Welded large diameter austenitic steel pipe for corrosive or high temperature service.
ASTM A731/A731M
Seamless and welded ferritic and martensitic stainless steel pipe.
ASTM A790/A790M
Seamless and welded ferritic/austenitic stainless steel pipe.
ASTM A450/A450M
General requirements for carbon, ferritic alloy and austenitic alloy steel tubes.
ASTM A530/A530M
General requirements for specialised carbon and alloy steel pipe.
JIS G3459
Stainless steel pipes.
Welded and seamless wrought steel pipe.
Stainless steel pipe.
Higher austenitic

UNS N08904 welded pipe.
UNS N08904 seamless pipe and tube.

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