Supreme Steels

O1

Product Description:

O1 tool steel is a high-carbon, cold-work tool steel that is commonly used in applications requiring good wear resistance, hardness, and dimensional stability. It is an oil-hardening steel, meaning it can be heat-treated by quenching in oil, which offers convenience and cost-effectiveness for heat treatment processes. O1 steel is used in the manufacturing of cutting tools, dies, and other tools that experience moderate to high stresses and wear. It is widely used in industries such as tool-making, automotive, and machining..

Features:

Specifications:

Composition of O1 Tool Steel:

Element Percentage
Carbon (C) 0.90 – 1.05%
Manganese (Mn) 0.60 – 0.90%
Chromium (Cr) 0.50 – 0.80%
Vanadium (V) 0.10 – 0.25%
Silicon (Si) 0.50 – 0.80%
Iron (Fe) Balance
Phosphorus (P) 0.03% Max
Sulfur (S) 0.03% Max

Physical Properties:

Property Value
Density 7.85 g/cm³
Melting Point 1410°C (2570°F)
Hardness (Brinell) 200-250 HB
Tensile Strength 850-1100 MPa (123,000-160,000 psi)
Yield Strength 700-1000 MPa (101,500-145,000 psi)
Elongation 10-15%
Modulus of Elasticity 210 GPa
Thermal Conductivity 46 W/m·K
Coefficient of Thermal Expansion 11.5 × 10⁻⁶ /°C