304 Stainless Steel Pipe Specifications

by Jane Tian on Aug 20, 2026 Business 77 Views

What are the specifications of 304 stainless steel pipe? In short, 304 stainless steel pipe specifications cover the material grade, the governing standards, the size and outside diameter, the wall thickness/schedule, the pipe type (seamless or welded), the length, and the end finish. Together, these details define how a 304 stainless steel pipe is ordered, manufactured, and used across industrial projects.

 

Stainless steel pipes are long, hollow tubes used in a wide variety of applications, manufactured in two ways: welded pipes and seamless pipes. SS 304 pipe is a metal pipe made of austenitic stainless steel (UNS S30400), with a composition of roughly 18% chromium and 8% nickel, and is widely used in food production equipment, chemical equipment, nuclear energy, and more. Size ranges are produced under ASTM A312 and A358 specifications, meeting ASTM, ASME and API standards, with welded SS 304 pipe and electric fusion welded (EFW) pipe both available.

304 Stainless Steel Pipe Specifications

 

Item Details
Material 304 austenitic stainless steel, UNS S30400 (approx. 18% Cr, 8% Ni)
Standards ASTM A312 / ASME SA312, ASTM A358 / ASME SA358
Dimensions ASTM, ASME and API
Seamless 304 Pipes 1/2″ NB – 16″ NB
ERW 304 Pipes 1/2″ NB – 24″ NB
EFW 304 Pipes 6″ NB – 100″ NB
Specialized in Large Diameter Size
Schedule SCH20, SCH30, SCH40, STD, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS
Type Seamless / ERW / Welded / Fabricated / LSAW Pipes
Form Round, Square, Rectangular, Hydraulic Etc
Length Single Random, Double Random & Cut Length
End Plain End, Beveled End, Threaded


Note: overall size availability depends on manufacturing type — seamless and ERW pipe generally cover smaller and mid-range diameters, while EFW pipe is used for the larger, large-diameter sizes.

Read a full guide: 304 Stainless Steel Pipe Specifications

Article source: https://article-realm.com/article/Business/84610-304-Stainless-Steel-Pipe-Specifications.html

URL

https://www.permanentsteel.com/
Permanent Steel Manufacturing Co.,Ltd (PMC) have years of experience in manufacturing of carbon steel pipe, stainless steel tube, hollow section, pipe fittings.(Fluid Pipe/Boiler Tube/Fire Pipe/Line Pipe/Structure Tube) Please refer to: https://www.permanentsteel.com

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