This quenched, tempered and scratch-resistant steel plate offers a durable option for your manufacturing needs. Requiring little to no preheating before cutting or welding, this versatile steel has 50% of the flatness tolerance of ASTM A6, but still maintains the same thickness range. Ultra 400 is an alloy steel that is manufactured using fully killed fine-grain methods, and includes applications such as the fabrication of heavy-equipment attachments, mining and construction machinery. We carry:

  • Thicknesses of 3/16" through 4"
  • Standard stock size of 96" by 288"

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