O1 tool steel is a oil hardening cold work steel belong to ASTM A681-1999.

Otai special steel are O1 tool steel stockholders and suppliers.

O1 tool steel chemical composition as below:

O1 Typical Analysis :  C 0.95% ; Mn 1.25%; Cr 0.50%; W 0.50%; V 0.20%;

O1 tool steel widely Application :

Typical application to  cold work die tool, such as lathe Center, reamer, bushing, lathe chuck jaw, the main cavity sinking hob, paper cutting machine knives, thread plug gauge, thread gauges and precision measuring tools. Also commonly used in applications such as CAM, cloth cutting knife, the cold water tap, reamer, sew jacket, reduce the hob, slotting cutter, trimming die, tube expander roll, the plastic mold, woodworking cutting tools  etc.

O1 tool steel supply and stock:

 

We supply the O1 steel round, plate, flat, sheet.  and we also can cutting O1 steel as requirement, and provide ground round bar. grind steel plate.

bearing-gear-steel

AISI O1 tool steel properties:

the mechanical properties of O1 steels as below:

Hardness, (soft annealed -delivery condition): 190 HB
Hardness, (tempering temp 300-1200°F): 34.0-64  HRC
Elastic modulus (At 62 HRC): 193 GPa
Elastic modulus (@399°C/750°F,  62 HRC ): 172 GPa
Elastic modulus (@191°C/375°F, 62 HRC):   186 GPa
Compressive yield strength (0.2%,  50 HRC) : 1350 MPa
Compressive yield strength (0.2%, 55 HRC):  1800 MPa
Compressive yield strength (0.2%, 60 HRC) :  2150 MPa
Compressive yield strength (0.2%,  62 HRC) : 2200 MPa

O1 tool steel hardness:

Annealing: 255HB Max

Tempering: at 100°C and 350°C.

Temperature [°C] 100 150 200 250 300 350
Hardness [HRc] 64-63 63-62 62-61 60-59 58-57 56-55

 

Hardening O1 tool steel 

Pre-heat to 300-500°C, then raising to 780-820°C.

.Contact us for buy O1 tool steel Materials inquiry

Email: jack@otaisteel.com   TEL: 0086-769-33232622   FAX: 0086-769-88705839