Stainless Steel Plate Specifications

ASTM A240/ASME SA-240 stainless steel plates cover chromium and chromium-nickel flat-rolled products for pressure vessels and general use. Table shows key specifications.

Property Details
Standard ASTM A240 / ASME SA-240
Grades 304, 304L, 316, 316L, 321, 347
Thickness 3 mm to 150 mm (1/8" to 6")
Width Up to 2500 mm (8 ft)
Length 6000 mm (20 ft) and 12000 mm (40 ft)
Surface Finish No.1, 2B, 2D, BA, No.4, No.8
Forms Hot-rolled, cold-rolled, clad, chequered, perforated

Stainless Steel Plate Dimensional Standards

Refer to the following technical data for the material specifications and mechanical requirements of Stainless Steel Plates.

Standard Plate Sizes and Thickness Chart

Thickness Range (mm) Standard Widths (mm) Standard Lengths (mm)
3.0 mm – 6.0 mm 1000, 1219, 1250, 1500 2000, 2438, 2500, 3000, 6000
8.0 mm – 25.0 mm 1500, 2000, 2500 6000, 9000, 12000
30.0 mm – 80.0 mm 1500, 2000, 2500 6000, 8000
85.0 mm – 150.0 mm 1500, 2000 4000, 6000

Stainless Steel Plate Surface Finishes

We supply stainless steel plates in various surface finishes to satisfy aesthetic, hygienic, and corrosion-resistance needs. You must choose carefully. Your selection directly impacts how that plate will perform throughout its final, real-world industrial application.

  • No. 1 Finish (Hot-Rolled, Annealed, and Pickled)
  • 2B Finish (Cold-Rolled, Skin-Passed)
  • 2D Finish (Cold-Rolled, Matt Finish)
  • BA Finish (Bright Annealed)
  • No. 4 Finish (Satin, Brushed, or Directional)
  • No. 8 Finish (Mirror Polished)
  • Hairline Finish
  • Bead Blasted Finish

Stainless Steel Plate Price

Stainless steel plate prices vary depending on the grade and thickness of the plate. In India, the standard 304L is priced between ₹210 and ₹260 per kilogram, while in the United States, it ranges from $3.10 to $4.50 per kilogram. The prices of premium grades such as 316L and Duplex 2205 are significantly higher. To obtain project-specific prices and comprehensive documentation, please get in touch with Sachiya Steel International.

Types of Stainless Steel Plates

Stainless steel plates are supplied in 6 main types based on the rolling process and surface pattern:

Hot-rolled (HR) plates

Hot-rolled (HR) plates

Cold-rolled (CR) plates

Cold-rolled (CR) plates

Clad plates

Clad plates

Chequered/checkered plates

Chequered/checkered plates

Perforated plates

Perforated plates

Shim plates

Shim plates

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Stainless Steel Plate Industrial Applications

Six key industries use stainless steel plates for demanding projects. To ensure reliability globally, engineers must choose grades flawlessly, as temperature and corrosion hazards often threaten the integrity of these critical systems.

Oil & Gas Industry

SS plates in grades 316L are used for pressure vessels, separators, and heat exchangers in upstream and downstream oil and gas operations.

Chemical & Petrochemical Processing

Grade 904L plates are capable of resisting mixed, phosphoric, and sulphuric acids. This material performs optimally in chemical settings characterized by high chloride levels and other severe corrosive conditions.

Food, Beverage & Pharmaceutical

Grades 304 and 316L are perfect for food and pharma. These plates provide the non-reactive, sanitary surfaces needed for processing tanks, vessel linings, and clean room walls. They keep everything sterile and safe.

Power Generation

Grades 321 plates are specified for boiler baffles, superheater supports, and furnace linings where continuous service temperatures exceed 600 degrees Celsius.

Construction & Architecture

Grade 304 plates are utilised for cladding panels, structural supports, lift interiors and decorative facades in both business and residential edifices.

Marine & Offshore

SS plates resist seawater corrosion in offshore platform decking, desalination plants, and shipboard piping systems.

Shipping & Packaging

Main export packaging setup Heavy-duty wooden boxes Packing
Export Packaging Standard

We strictly follow seaworthy export handling standards to protect SS plate from transit damage, moisture ingress, and surface contamination during long-distance dispatch.

  • Heavy-duty wooden boxes with moisture barrier lining
  • HDPE stretch film wrapping on all bundles
  • Edge and corner protection with plastic padding
  • Silica gel desiccants to minimize moisture exposure
  • ISPM-15 fumigated wooden packaging for export
shipping preparation Plate Bundle Yard Staging
Shipping packaging Plate Bundle Edge Protection
Shipping stock Wrapped Export-Ready Bundles

We Export Worldwide

Sachiya Steel International supplies stainless steel products to major industrial markets across North America, Europe, the Middle East, Asia and Africa with export-ready documentation and logistics support.

  • USA flagUSA
  • Canada flagCanada

Frequently Asked Questions:

How much does a stainless steel plate cost per kg? +
Grade, thickness, and order quantity affect stainless steel plate cost per kilogram. Most affordable austenitic plates are 304/304L. Prices range from ₹210 to ₹260 per kilogram, while in the US, it costs $3.10 to $4.50 per kilogram.Prices are higher for duplex and super austenitic. For an actual quote, please contact us with your specifications.
What is the standard specification for stainless steel plates? +
The primary specification is ASTM A240 / ASME SA-240, which covers chromium and chromium-nickel stainless steel plate, sheet, and strip for pressure vessels and general applications.
Which stainless steel plate grade is best for corrosive environments? +
Grade selection depends on the type of corrosion. 316L suits chloride-bearing environments due to its 2-3% molybdenum content. For sulphuric acid, 904L or Alloy 20 is preferred. handles offshore and high-chloride conditions. Grade is specified for the most aggressive subsea environments.
What thickness range is available for stainless steel plates? +
Stainless steel plates are available in thicknesses from 3 mm (1/8 inch) through 150 mm (6 inches).
What is the difference between stainless steel plate and sheet? +
The distinction is based on thickness. Stainless steel plate is generally considered ≥ 4.76 mm (3/16 in) as per industry practice, although ASTM A240 covers both sheet and plate. While sheet refers to thinner gauges below 3 mm. Both are covered under ASTM A240, but the plate is typically hot-rolled, and the a sheet is cold-rolled.
Can stainless steel plates be cut to custom sizes? +
Yes, we offer cut-to-size stainless steel plates through plasma, waterjet, and laser cutting. Standard mill sizes include widths up to 2500 mm and lengths up to 12000 mm. Custom dimensions are available on request.
What surface finishes are available for stainless steel plates? +
Stainless steel plates are available in No.1 (hot-rolled, annealed, pickled), 2B (cold-rolled, skin-passed), 2D, BA (bright annealed), No.4 (satin/brushed), and No.8 (mirror polished) finishes. Finish selection depends on the application.
Do you supply stainless steel plates with mill test certificates? +
We supply mill test certificates per EN 10204 3.1 with every order. Soft copies of all manufacturing, quality, and material test certificates are provided as standard. Our ISO-certified quality management system covers the full supply chain from sourcing to dispatch.

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