Stainless Steel Pipe (ASTM A312)

PNW Sanitary Industrial Stainless Steel Pipe is manufactured for nominal pipe size (NPS) applications requiring corrosion resistance, dimensional consistency, and dependable performance in fabrication, mechanical, and process piping systems. Produced to ASTM A312 specifications, this category includes seamless stainless pipe in Schedule 5, Schedule 10, and Schedule 40 wall thicknesses.

Available in 304 and 321 stainless steel alloys, these pipes support a wide range of industrial environments. 304 stainless provides reliable general-purpose corrosion resistance, while 321 stainless — stabilized with titanium — offers enhanced performance in elevated temperature and thermal cycling applications. Seamless construction eliminates internal weld seams, ensuring uniform wall thickness and improved structural integrity.

All pipe distributed by PNW Sanitary is verified through in-house Positive Material Identification (PMI) using the SciAps X-550 handheld XRF spectrometer to confirm alloy chemistry and support material traceability.

  • Alloys: 304 & 321 stainless steel
  • Wall thicknesses: Schedule 5, 10, & 40
  • Specification: ASTM A312
  • Seamless construction
  • Compatible with ASME B16.9 NPS butt-weld fittings
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