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Commercial Quality Steel Plate Suppliers

As the leading carbon steel plate supplier, Delta Steel carries Commercial Steel (CS/CQ) plates in various options and grades, including hot rolled, cold rolled, hot rolled-pickled & oiled, and galvanized. They range in thickness from 3/16 inches to 8 inches thick, and several patterns sizes up to 120 inches x 480 inches. Our commercial-quality steel plates promise quality, safety, and durability that suit the needs of our manufacturing customers.


Delta Steel produces durable carbon steel plates of various hardness and carbon content through multiple processes. Commercial steel (CS/CQ) is often used in the automotive and furniture-making industries. This grade is well-suited for flat applications that require little to no bending.

The hardness of steel is measured through the Rockwell scale. Generally, carbon steel falls from B to C, depending on the steel plate’s carbon content.

Hot Rolled

Delta Steel’s commercial quality steel plates are produced from low-carbon steel and are well-suited for diverse applications. From simple bending, moderate drawing, and welding, our low-carbon steel plates are a cost-friendly option with a simple finish and mild ductility. In addition, it is easy to weld, form, and drill, making it the perfect choice for the following applications:

  • Automotive panels
  • Toolboxes
  • Hoppers
  • Drip pans
  • Fuel tanks
  • Railroad Tracks
  • Strappings
  • Stampings

Hot Rolled Pickled & Oiled

Use our hot-rolled pickled and oiled plates for a smooth, clean surface. Our commercial quality steel plates are highly recommended for stamping or typical drawing applications, perfect for undesirable tight oxide scales. Enjoy easy-to-paint clean plates, ready to use for the following applications:

  • Rack Systems
  • Construction
  • Lawn and Garden
  • Welding finishes
  • Reinforcements
  • Light poles
  • Gas cylinders
  • Guardrails

Cold Rolled

Produced from low-carbon steel, our cold-rolled commercial quality steel plates are best used for exposed or unexposed parts involving bending, moderate drawing or forming, and welding. Our high production, selection, and steel processing standards produce high-quality, high-performance steel plates. In addition, cold-rolled ASTM (American Society for Testing and Materials) steel plates are commonly used when dimensional tolerances, strength, and surface finish quality are critical, such as:

  • Shelving
  • Toolboxes
  • Metal furniture
  • Automobile components
  • Electronics hardware
  • Home appliances and components
  • Lighting Fixtures


Having coated in zinc for rust protection and corrosion resistance, our galvanized steel plates are recommended for construction, metal fittings, kitchen and home appliances, and automotive parts. With our galvanized ASTM steel plates, you’ll never worry about water, moisture, and rust again. We guarantee a longer lifespan and reduced maintenance costs for the following applications:

  • Exterior building products
  • Ductwork
  • HVAC products
  • Garage doors
  • Safety Fencing
  • Automotive parts
  • Appliances
  • Commercial and residential steel framing

ASTM Standard Carbon Steel Plates

Delta steel provides carbon steel plates in a variety of grades:

  • ASTM Standard A36: Low-carbon steel yield strength of 250 MPa/36000 psi (pound per square inch) or higher.
  • ASTM Standard A572: High-strength, low-alloy steel plates with yield strength ranging from 42-65 ksi (kilo pound per square inch).
  • ASTM Standard A588: High-strength, low-alloy steel plate recommended for harsh outside conditions.
  • ASTM Standard A709: Highly-weldable steel with a yield strength of 50,000 psi.
  • ASTM Standard A285: Carbon steel plates of low to medium yield strength for fusion-welded vessels.
  • ASTM Standard A514: Quenched and tempered alloy steel plates used for welded bridge construction.
  • ASTM Standard A516: Carbon steel plates for improved notch toughness.

High-Quality Structural Steel Supply And Services

As the leading carbon steel plates supplier in the United States, Delta Steel is dedicated to giving you service, excellence, quality, and safety. Are you looking for a steel plate for your next project? Check out our services and view our extensive range of high-quality products in our catalog.

Contact us today, and talk to our friendly customer service and experts for a quote.

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