O1 OS Tool Steel Precision Ground Flat Stock

O1 OS Tool Steel Precision Ground Flat Stock

1/8 x 1/2 / 18" long
$20.33
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O1 OS Tool Steel Precision Ground Flat Stock

O1 OS Tool Steel Precision Ground Flat Stock

$20.33

Out of Stock or Need a Different Size?

Contact us if an item is out of stock or you need a special order. We’ll gladly check availability and provide an estimated lead time.


Call (773) 778-2977
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O1 precision ground flat stock tool steel is an oil hardening, cold work general purpose steel with easy machining properties and low hardening temperatures compared to other grades. O1 provides good wear resistance and toughness sufficient for standard tool and die applications making it a suitable choice for tooling with good tool life and econimcal production. In situations that require greater size stability during hardening, A2 should be considered. Some common applications include: bending dies, trimmer dies, perforators, broaches, blanking dies, forming dies, gages, cutting dies, bushings, forming rolls, knives, drawing dies, and embossing dies. Common trade names include Badger, Ketos, Truform, Keystone, Oilcraft, Presco, Colonial No. 6, Thyrodur 2510, Wando, Kiski, EXL-Die, BTR, Saratoga, Teenax, Keewatin.

  • Finish: Precision Ground
  • Tolerances: +.010/.015" thickness and width
  • Condition: Annealed
  • Applications: dies, gauges, punches, rolls, knives, stamps, machine parts
  • Specifications: ASTM 681, QQ-T-570, J437, T31501, AISI O1
  • Available in 18" or 36" lengths

    Chemical Composition:
    Carbon: 0.90/1.00
    Chromium: 0.40/0.50
    Tungsten: 0.40/0.60
    Manganese: 1.00/1.20
    Vanadium: 0.15/0.30
    Silicon: 0.40/0.50
    Phosphorus: 0.030 max
    Sulfur: 0.030 max
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