Product: AISI O-1,DIN 1.2510
Key words: oil hardening die steel,tool steel,die steel,specialty steel,steel bar,hotwork,coldwork,forged bar,alloy tool steel,flat bar, round bar
Typical Analysis:
C: 0.85-1.00
Si:0.10-0.50
Mn:1.00-1.40
P: MAX 0.030
S: MAX 0.030
Cr:0.40-0.60
V: MAX 0.30
W: 0.40-0.60
Similar Grades: DIN 1.2510,GB/T 9CrWMn+v
Advantages:
1.Moderately wear resistant.
2.Hardens from low temperature.
3.Easy to machine.
Availability:
Flat,round,normal forging sizes.
Machinability:
In the annealed condition O-1 carries a rating of 90% of a 1% carbon tool steel. It also has a high grindability rating.
Annealing:
Preferably O-1 should be atmosphere or vacuum annealed at 1425°F. About two or three hours at temperature is required. Then the charge should be furnace cooled 100° per hour and then cooled in still aie from 1000°F. Annealed hardness is 187 to 217 Brinell.
