Stock is dimensionally stable - use it for the most intricate work. Deep hardening characteristics and fine grain structure. Machines freely - fully spheroidized, annealed. Full length identification - eliminates confusion with other steels. Furnished in 18" length, ground straight and parallel. Nominal Analysis (AISI 01): Carbon-.90 Tungsten -.50, Chromium-.50 Vanadium-.20, Manganese-1.20. Hardening: It is recommended that stock be heated uniformly to 1450° - 1500°F and quenched in oil. Temperature of the quenching oil should be 120° - 140°F for best results. Do not quench in water because this is an oil hardening steel. Tempering: For maximum toughness, a tempering time of one hour at temperature is recommended. Use chart for selecting desired Rockwell C hardness and corresponding tempering temperature. The following table may also be used as a guide depending on type of work. Cutting Tools - 300° - 350°F (Light Straw), Solid Punches and Dies - 400° - 450°F (Straw), Spring Temper - 750° - 800°F (Blue)
