Stainless Steel Pipe 1" NPS x Schedule 40 304OD: 1-5/16"WALL: 1/8"Great WeldabilityCorrosion ResistantIn Stock$17.48at 12"
Stainless Steel Pipe 1" NPS x Schedule 40 316OD: 1-5/16"WALL: 1/8"Great WeldabilityCorrosion ResistantIn Stock$26.58at 12"
Stainless Steel Pipe 1" NPS x Schedule 80 304OD: 1-5/16"WALL: 3/16"Great WeldabilityCorrosion ResistantIn Stock$34.51at 12"
Stainless Steel Pipe 1" NPS x Schedule 80 316OD: 1-5/16"WALL: 3/16"Great WeldabilityCorrosion ResistantIn Stock$48.09at 12"
Stainless Steel Pipe 1-1/2" NPS x Schedule 40 304OD: 1-7/8"WALL: 1/8"Great WeldabilityCorrosion ResistantIn Stock$36.66at 12"
Stainless Steel Pipe 1-1/2" NPS x Schedule 40 316OD: 1-7/8"WALL: 1/8"Great WeldabilityCorrosion ResistantIn Stock$31.08at 12"
Stainless Steel Pipe 1-1/2" NPS x Schedule 80 304OD: 1-7/8"WALL: 3/16"Great WeldabilityCorrosion ResistantIn Stock$53.59at 12"
Stainless Steel Pipe 1-1/2" NPS x Schedule 80 316OD: 1-7/8"WALL: 3/16"Great WeldabilityCorrosion ResistantIn Stock$61.18at 12"
Stainless Steel Pipe 1-1/4" NPS x Schedule 40 304OD: 1-11/16"WALL: 1/8"Great WeldabilityCorrosion ResistantIn Stock$39.55at 12"
Stainless Steel Pipe 1-1/4" NPS x Schedule 40 316OD: 1-11/16"WALL: 1/8"Great WeldabilityCorrosion ResistantIn Stock$38.85at 12"
Stainless Steel Pipe 1-1/4" NPS x Schedule 80 304OD: 1-11/16"WALL: 3/16"Great WeldabilityCorrosion ResistantIn Stock$30.84at 12"
Stainless Steel Pipe 1-1/4" NPS x Schedule 80 316OD: 1-11/16"WALL: 3/16"Great WeldabilityCorrosion ResistantIn Stock$45.59at 12"
Stainless Steel Pipe 1/2" NPS x Schedule 40 304OD: 13/16"WALL: 1/8"Great WeldabilityCorrosion ResistantIn Stock$15.13at 12"
Stainless Steel Pipe 1/2" NPS x Schedule 40 316OD: 13/16"WALL: 1/8"Great WeldabilityCorrosion ResistantIn Stock$17.34at 12"
Stainless Steel Pipe 1/2" NPS x Schedule 80 304OD: 13/16"WALL: 1/8"Great WeldabilityCorrosion ResistantIn Stock$19.13at 12"
Stainless Steel Pipe 1/2" NPS x Schedule 80 316OD: 13/16"WALL: 1/8"Great WeldabilityCorrosion ResistantIn Stock$18.72at 12"
Stainless Steel Pipe 1/4" NPS x Schedule 40 304OD: 9/16"WALL: 1/16"Great WeldabilityCorrosion ResistantIn Stock$9.38at 12"
Stainless Steel Pipe 1/4" NPS x Schedule 40 316OD: 9/16"WALL: 1/16"Great WeldabilityCorrosion ResistantIn Stock$8.84at 12"
Stainless Steel Pipe 1/4" NPS x Schedule 80 304OD: 9/16"WALL: 1/8"Great WeldabilityCorrosion ResistantIn Stock$12.94at 12"
Stainless Steel Pipe 1/4" NPS x Schedule 80 316OD: 9/16"WALL: 1/8"Great WeldabilityCorrosion ResistantIn Stock$21.91at 12"
Stainless Steel Pipe 2" NPS x Schedule 10 304OD: 2-3/8"WALL: 1/8"Great WeldabilityCorrosion ResistantIn Stock$25.06at 12"
Stainless Steel Pipe 2" NPS x Schedule 40 304OD: 2-3/8"WALL: 1/8"Great WeldabilityCorrosion ResistantIn Stock$33.22at 12"
Stainless Steel Pipe 2" NPS x Schedule 40 316OD: 2-3/8"WALL: 1/8"Great WeldabilityCorrosion ResistantIn Stock$73.17at 12"
Stainless Steel Pipe 2" NPS x Schedule 80 304OD: 2-3/8"WALL: 3/16"Great WeldabilityCorrosion ResistantIn Stock$43.40at 12"
Stainless Steel Pipe 2" NPS x Schedule 80 316OD: 2-3/8"WALL: 3/16"Great WeldabilityCorrosion ResistantIn Stock$94.37at 12"
Stainless Steel Pipe 2-1/2" NPS x Schedule 40 304OD: 2-7/8"WALL: 3/16"Great WeldabilityCorrosion ResistantIn Stock$46.25at 12"
Stainless Steel Pipe 2-1/2" NPS x Schedule 40 316OD: 2-7/8"WALL: 3/16"Great WeldabilityCorrosion ResistantIn Stock$87.85at 12"
Stainless Steel Pipe 2-1/2" NPS x Schedule 80 304OD: 2-7/8"WALL: 1/4"Great WeldabilityCorrosion ResistantIn Stock$110.80at 12"
About our stainless steel
Two grades cover almost every stainless job, and we stock both deep. 304 is the indoor and general-purpose pick: railings, brackets, food-grade fixtures, shop fittings. 316 earns its upcharge near salt water, chemicals, and road brine. Debating between them? Coastal or marine, go 316; everywhere else, 304 does the job.
Shapes on the shelf: round bar, flat bar, square bar, hex bar, angle, pipe, square tube, and sheet in 2B finish. Everything cuts to the inch like the rest of the store. Need a polished or specialty finish we don't list? Send a quote request and we'll source it.
304 or 316: which stainless do you need?
One question decides it: will the part meet salt water, road salt, or pool chemistry? If it won't, buy 304: it's the standard for indoor railings, kitchen and brewery fittings, brackets, and food-contact work. If it will, buy 316: its 2-3% molybdenum is what stops chloride pitting on wharf hardware, boat parts, and anything living near the Atlantic.
How much more does 316 cost?
Less than its reputation, and it depends on the shape. Two real pairs from our shelf, priced per 12″ piece in CAD as of June 2026:
| Same size, same length | 304 | 316 |
|---|---|---|
| Flat bar, 1/4″ x 2″ | $26.11 | $29.30 |
| Pipe, 1″ NPS schedule 40 | $17.48 | $26.58 |
So budget roughly 10-50% over 304 by shape, and check the live page for today's number. On one piece of boat hardware the difference is a coffee; replacing a pitted part twice is the expensive route. Want the full breakdown? Our 304 vs 316 guide walks through when the upcharge pays for itself.
What shapes are on the rack?
Will stainless rust?
It can stain and pit, it just resists far longer than steel. Near salt, 304 shows brown tea staining before real damage; inland it stays clean for decades with a rinse. The avoidable mistake we see: carbon steel grinding dust settling on stainless, rusting, and looking like the stainless failed. Keep dedicated brushes and discs for stainless work and it'll keep its looks.
Inspected job? Mill test reports are available on request, any order size.