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O1 Tool Steel (100MnCrW4)
Medium alloyed cold work steel with good hardening capacity, high wear resistances, dimensionally stable during heat treatment.
Applications: Cutting and punching tools, shear knives, thread rolling tools, measuring instruments.
Colour Code
Blue/Green
Stocked Sizes
Condition of Delivery
Soft annealed to max. 230 HB
Related Specifications
Germany
DIN 1.2510
USA
AISI O1
Chemical Composition
%
Carbon
0.95
Manganese
1.10
Chromium
0.60
Tungsten
0.60
Vanadium
0.10
Physical Properties
Thermal expansion coefficient
Thermal conductivity
Heat Treatment
Soft Annealing
Temperature
Cooling
Hardness
740 - 770oC
furnace
max 230 HB
Stress Relief Annealing
Temperature
Cooling
600 - 650oC
furnace
Hardening
Temperature
Cooling
Tempering
790 - 820oC
oil or hot bath
180 - 220oC
see tempering diagram
Thermal Cycle Diagram
Continuous Cooling Transformation Diagram (CCT)
Tempering Diagram
Interlloy believes the information provided is accurate and reliable. However no warranty of accuracy, completeness or reliability is given, nor will any responsibility be taken for errors or omissions.
