Alterna Metals
Quote Cart (0 items)
AISI 304 · 316L · Tube · Bar · Sheet · Fittings · Flanges · Fasteners

Stainless Steel

Tube, bar, sheet, pipe fittings, flanges and fasteners in AISI 304 and 316L

AISI 304 · 316 / 316L · 303 · 48 product types

Request a Quote

Ready to request pricing?

Add sizes to your quote cart, or paste your full list — Excel, CSV, or plain text.

Request a QuoteSend your list

Grade-led stainless steel: tubes, bars, sheet, fittings, flanges, and fasteners

Stainless steel demands more from material selection than most metals — grade, finish, and fabrication method all affect long-term performance in ways that only become visible under load or exposure. Our catalogue focuses on AISI 304, 316L, and 303 across welded and seamless round tubes, square and rectangular box profiles, solid round, square, hexagon, flat, and angle bar, and sheet — alongside welded pipe fittings, flanges, and A2 / A4 fasteners.

304 covers most general-purpose and architectural use. 316L adds molybdenum for chloride exposure, coastal conditions, or process chemicals. 303 is offered as free-machining round bar for CNC work. Where service conditions are unusual, note them in your enquiry so we can advise before ordering.

Each product page lists the sizes and cut lengths currently available for that grade. Request a quote with section, dimensions, and quantity — availability is confirmed per size.

Stainless steel — common questions

304 or 316L — how do I choose?
304 covers most indoor, architectural, and light industrial use. 316L is specified where chlorides, moisture, or process chemicals are a factor. If you're unsure, describe the exposure conditions in your enquiry — we'll advise on the appropriate grade.
Do products come with material certificates?
Certificate availability depends on product type, producer, and order quantity. Specify the documentation standard you need in your quote request and we'll confirm what can be supplied for your batch.
Can sheet and long products ship together?
Often yes, subject to packing compatibility and destination requirements. Outline your preferred incoterms and any packing constraints in your enquiry and we'll propose a consolidated dispatch plan where possible.

Related guides

Stainless Steel Tube, Bar, Sheet, Fittings and Fasteners