COLD WORK STEEL O-1

Type O1 oil-solidifying cold work steel comprises of chromium, manganese, and tungsten and is moderately cheap. A universally useful oil hardening tool steel reasonable for back up and punch holder plates. Components of this grade incorporate a decent mix of high surface hardness and toughness after hardening and tempering. Oil solidifying tool steel for assembling of cutting instruments, blanking and punching devices. Machine knives, threading tools.

Chemical Composition

Element Min Max
Carbon, C 0.90 1.05
Manganese, Mn 1.00 1.oo
Silicon, Si 0.15 0.35
Molybdenum, Mo
Chromium, Cr 0.50 0.70
W 0.50 0.70
V 0.5 0.15
Co

PHYSICAL PROPERTIES

Properties Metric Imperial
Density(hardened to 62 HRC) 7.81 g/cm 3 0.282 lb/in 3
Density (@399°C/ 750°F, hardened to 62 HRC) 7.70 g/cm 3 0.278 lb/in 3
Density (@191°C/ 375°F, hardened to 62 HRC) 7.75 g/cm 3 0.280 lb/in 3
Melting point 1421°C 2590°F

THERMAL PROPERTIES

Properties Conditions
T (°C) Treatment
Thermal expansion 10.6 x 10 -6 /ºC 20-260

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