AISI O-1

Technical Data

Precision Flat Ground Stock: Standard Tolerances
  • Thickness +/- 0.001"
    Width + 0.000/0.005"
    Length + 0.250/0.500"
    Squareness 0.003" per inch
Precision Flat Ground Stock: Oversize Tolerances
  • Thickness + 0.010/0.015"
    Width + 0.010/0.015"
    Length + 0.250/0.500"
    Squareness 0.003" per inch
Drill Rod Tolerances
  • Diameter 0.124" and smaller +/- 0.0003"
    Diameter .125 to .499 +/-.0005
    Diameter .5 to 2.0” +/-.001
    All Lengths +.125/-.000

Material

AISI O-1

A general-purpose oil-hardening tool steel that is versatile and suitable for a wide variety of cold work applications.


HARDENING:


Preheating Temperature: 1110-1290 ° F (600-700 ° C)


Austenitizing Temperature: 1450-1560 ° F (790-850 ° C)


Protect the part against decarburization and oxidation during hardening. Quench as quickly as possible. Cooling must be uniform and at a rate to avoid distortion and/or quench cracking. Choose the temperature from the tempering graph. Temper twice with intermediate cooling to room temperature. Lowest temperature 360 ° F (180 ° C). Holding time at temperature minimum 2 hours.


Available in 18” and 36” lengths.


Typical Chemistry

C 1.00
Mn 1.20
Si 0.35
Cr 0.35
W 0.50

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