304 Stainless Steel Sheet Suppliers
193 vetted U.S. suppliers · 36 states
304 sheet is the most widely-used stainless steel grade — the standard for food-grade equipment, architectural panels, kitchen fabrication, and general corrosion-resistant work. Below is our live count of vetted U.S. suppliers with state distribution and a one-click RFQ flow.
Geographic distribution
Where these suppliers are
Top 8 states by vetted-supplier density. 82 more across 28 additional states — listed below the chart.
Also covered
Michigan (8) · New Jersey (7) · Massachusetts (7) · North Carolina (7) · Washington (6) · Minnesota (5) · Georgia (5) · Missouri (4) · Virginia (4) · Oregon (4) · Arizona (3) · Maryland (2) · New Hampshire (2) · Utah (2) · Indiana (2) · Iowa (2) · Vermont (1) · Louisiana (1) · North Dakota (1) · Alabama (1) · South Carolina (1) · Kansas (1) · Wisconsin (1) · Hawaii (1) · Colorado (1) · Kentucky (1) · Alaska (1) · Oklahoma (1)
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What 304 stainless steel sheet is
304 is an austenitic chromium-nickel stainless steel (18% Cr, 8% Ni) — the workhorse general-purpose stainless. Sheet is supplied per ASTM A240 in gauges from 0.018" through 0.187"; anything thicker is plate. Common finishes: 2B (cold-rolled, mildly reflective — the standard), No. 3 (linear satin), No. 4 (brushed — architectural and food-equipment standard), BA (bright annealed — mirror-prep), and No. 8 (mirror polish). #4 brushed is by far the most popular for visible work.
What to look for in a supplier
The finish callout drives stock availability and price. 2B mill finish is universally stocked; #4 brushed adds 15-25% cost; #8 mirror polish adds 50-80%. Decide whether you need PVC film protection (standard for #4 and #8 finishes to prevent scratches during fab) — most stocking distributors carry both with-PVC and bare sheet, but confirm before quoting. Sheet edge condition matters for some applications: mill-edge has rougher slit edges, deburred or laser-cut edges add cost but reduce downstream labor. Gauge tolerance is mill-standard unless you spec tighter.
FAQ
Common questions
What's the difference between 304 and 316?
316 adds 2-3% molybdenum, giving better chloride and pitting resistance — important for marine, chemical, and pharmaceutical work. 304 is fine for general food, kitchen, architectural, and indoor industrial use. 316 typically costs 15-25% more.
What's a #4 finish on 304 sheet?
#4 is a brushed/satin finish — linear grain produced by mechanical abrasion (typically 150-180 grit). It's the standard finish for visible food-equipment, kitchen counters, and architectural panels. Comes with PVC film protection most of the time to prevent fabrication scratches.
Is 304 magnetic?
Mostly no — 304 is austenitic and non-magnetic in the annealed condition. Cold-working (drawing, deep-bending, severe forming) can induce slight magnetism in the worked area. If full non-magnetism is required, 316L tends to hold non-magnetic properties better through cold work.
What gauges does 304 sheet come in?
Standard gauges run from 26-gauge (~0.018") through 7-gauge (~0.187") in even-numbered increments (26, 24, 22, 20, 18, 16, 14, 12, 11, 10, 7). Above 7-gauge it's plate.
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