Stainless Steel Plates Stainless Steel Plates Supplier Stainless plates are available in many grades and finishes. Plates are often used in the fabrication and manufacturing industry. No matter what type of project you are creating, as a trusted stainless steel plate supplier, we are here to help. We have some of the lowest steel plate prices on the market. By working closely with our mills and understanding your needs, we can find you the best steel plates for sale in the market. Types of Stainless Steel Plates Available: The difference between stainless steel sheets and stainless steel plates is the amount of thickness involved. Stainless Steel Plates We stock several grades of the plate. Some of the most common grades are 304/304L and 316/316L. The L-option is lower carbon, which means more ecologically friendly choices for your customers. The low-carbon options will also help when combating corrosion and repeated usage. Nickel Alloy Plates Nickel Alloy Plates are ideal for high-temperature, high-corrosion environments. These would be used in such constructs as vessels, heat exchangers, pipes, pumps, and scrubbers. The plates are irreplaceable in the marine engineering, chemical, petrochemical, hydrocarbon, and thermal industries. Nickel Alloy plates are guaranteed to survive anything you throw at them, from deep-sea research vessels to volcanic studies. Diamond Plates Stainless steel diamond plates are offered in 304 & 316 in 1/8″ to 3/8″ thick. Plates Come in the Following Grades: 15-5PH17-4PHDUPLEX 2202DUPLEX 2205DUPLEX 2304DUPLEX 2507303304/304L304H309S310S316/316L317L321H347H410S430904LUNS N08367 Difference Between Plates and Sheets and Flat Bars Some of the difference between Plate and Sheet is the thickness of the material and the mill finishes offered. Moreover, stainless plate and the sheet meet different ASTM specs. Flat bars are sometimes made from the plate. However, when cutting flat bar it is important to cut with the grain. We specialize in finding hard to find items. Contact us so you can become another satisfied customer! Types of Sheets Stainless Steel Sheet – Sheet is available in a thickness less than .250″- .018” thick. Its important to note that the sheet is usually ordered by gauge thickness width and length. Width starts at 48” wide and length can be 144” long. Custom width and lengths available upon request. Stainless Steel Plate – Plates are when the thickness of the metal are thicker than 3/16″ to 6″ which may have a #1 HRAP finish. The measurements for the plate start at 48” wide the length can be 30’ long. Whereas, we offer custom sizes. Stainless Steel Flat Bars – Stainless steel flat bars are often produced in different grains than plates and sheets and are not as wide. The width or length of the bar is what would determine a flat bar to be qualified as plate or bar. METAL WEIGHT ID & WALL METAL WEIGHT CALCULATOR Select Your Metal: 15-5 PH Stainless Steel 17-4 PH Stainless Steel Stainless 300 Series Stainless 400 Series Nickel 200 Nickel 201 Nickel 400 Nickel 600 Nickel 625 Nickel 718 Nickel X750 Nickel 800 Nickel 800H Nickel 825 Nickel 904L Titanium Monel Nitronic Select a Shape: Round Bar Square Bar Flat Bar Sheet Plate Circle Ring Hexagon Bar Round Tubing Square Tubing Rectangular Tubing Number of Pieces: Enter size information: in ft in ft in ft in ft Calculated Weights Approx. weight in lbs* *These weights should be used for estimation purposes only. Plate weight does not allow for kerf. Calculator to get ID from OD and Wall of stainless steel tube OD: Wall: ID Calculated Calculator to get Wall from OD and ID of stainless steel tube OD: ID: Wall Calculated *These results should be used for estimation purposes only. Contact us now! Whether you need a few feet or full truckloads, StainlessShapes.net delivers quality 304 stainless I beams. Standard and custom sizes available with fast shipping across the U.S. and expert service and quotes in under 24 hours. Δ Furthermore, for a prompt and accurate quote, call us today. Call - 800-748-9811 Frequently Asked Questions What are stainless steel plates used for industrially? + Industrial stainless steel plates are used in tanks, pressure vessels, heat exchangers, chemical reactors, shipbuilding, bridge components, architectural cladding, food processing equipment platforms, nuclear containment structures, and offshore oil and gas facilities. Their combination of strength, corrosion resistance, and durability makes them one of the most specified materials in heavy industry. What are the downsides of stainless steel plate? + The main downsides of stainless steel plate are cost (significantly higher than carbon steel), weight (comparable to carbon steel, heavier than aluminum), and difficulty of machining compared to some other metals. Additionally, stainless plate requires care during handling and fabrication to avoid surface contamination from carbon steel tools, which can cause surface rust. Is stainless steel plate 100% non-toxic? + Yes, stainless steel plate—particularly grades 304 and 316—is considered non-toxic for food and industrial contact applications. The chromium oxide passive layer is stable and does not leach into food or water under normal operating conditions. For high-purity applications (pharmaceutical, semiconductor), electropolishing the surface further reduces any trace element release. What grades are available for stainless steel plates? + Stainless Shapes stocks stainless steel plate primarily in Grades 304, 304L, 316, and 316L. Other grades including 321, 347, 17-4 PH, 15-5 PH, and duplex alloys are available on order. For applications requiring specific mechanical property certifications, Stainless Shapes provides certified material test reports. What thickness ranges are available for stainless steel plate? + Stainless steel plate typically begins at 3/16" (approximately 4.76mm) thickness, which differentiates plate from sheet. Common plate thicknesses range from 3/16" through several inches. Stainless Shapes stocks a variety of standard thicknesses and can advise on availability for your specific project requirements. How is stainless steel plate measured? + Stainless steel plate is measured by thickness, width, and length. Thickness is specified in inches or millimeters. The plate gauge system is sometimes used for thinner material, but standard plate is measured directly in fractional or decimal inches. A typical plate might be specified as 1/2" × 48" × 120" (T × W × L). Is 304 or 316 stainless steel plate better for food processing? + For food processing, 316L stainless steel plate is the standard specification. It offers better chloride resistance than 304 (important in food environments where cleaning chemicals contain chlorides), and the 'L' (low carbon) variant minimizes sensitization risk in welded assemblies, preserving corrosion resistance in the heat-affected zones around welds. Can stainless steel plates be cut to size? + Yes, Stainless Shapes offers plate cutting services. Plates can be cut to your specified dimensions using saw cutting, plasma cutting, or water jet cutting depending on the thickness and tolerance required. Custom cut-to-size plates minimize material waste and reduce your fabrication time. What is the difference between stainless steel sheet and plate? + The key difference between stainless steel sheet and plate is thickness. Stainless steel sheet is typically defined as material thinner than 3/16" (4.76mm), while plate is 3/16" and thicker. Sheet is sold by gauge, while plate is sold by thickness in inches or millimeters. Both are stocked by Stainless Shapes in 304 and 316 grades. How long does stainless steel plate last? + In the right environment, stainless steel plate is extraordinarily durable. In industrial settings, properly specified and maintained stainless plate regularly achieves 25–50+ years of service. Many food processing tanks and chemical vessels made from 316L stainless steel plate last the full economic life of the facility. The keys to longevity are proper grade selection, correct welding procedures, and periodic cleaning to maintain the passive layer.
