Let Frontier be your single-source processing solution.

John Matig
- President

Quality Certification
Frontier Steel Company is ISO 9001:2015 certified to better meet your needs!

ISO 9001:2017 Certification image


Sheets, Plates & Coil for Every Application

At Frontier Steel, we carry a wide selection of random-sized domestic plates. All of our products are certified to various grades.


  • Lengths: Up to 720 inches
  • Widths: Up to 120 inches
  • Thicknesses: 16ga up to 16 inches


Carbon Plate

  • A36
  • A572-50/A70950 (CVN Tested)
  • A572-60
  • A588/A70950W (CVN Tested)
  • A516-70
  • C1020

Alloy Plate

  • AR400F
  • A514-T1


  • 16ga to ½" thick x 48", 60" & 72" wide x various lengths
  • Note: Standard Bundle Size-5,000 lbs.

HR, CR and coated products may be cut to length, slit, or blanked to your job specifications.

If you need a product that isn’t listed, let us know, or call 412.865.4444, and we’ll get it for you.