Specialized for temperatures as low as -50 F or -45 C, 350 WT Cat 4 or A57250 is known for its reliability in cold northern climates. With strong Charpy V-Notch testing results, this grade of steel is certified for durability and toughness.The 350WT Cat 4 steel we offer consist of:

  • Thicknesses of 1/4" through 4"
  • Standard stock sizes of 96" by 240" and 96 by 480"
  • Minimum yield point of 50,000 psi
  • Minimum tensile strength of 65,000 psi

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