High Hardness: Exceptional hardness after heat treatment, making it ideal for high-performance applications.
Corrosion Resistance: Offers good resistance to corrosion in mild environments, particularly in fresh water and certain chemicals.
Wear Resistance: Outstanding wear resistance, suitable for high-stress applications such as bearings and cutting tools.
Magnetic Properties: It is magnetic, as it belongs to the martensitic family of stainless steels.
Applications:
Aerospace components
Cutting tools (e.g., knives, blades)
Ball bearings and races
Valve components
Industrial equipment
Physical Properties:
Property
Value
Density
7.75 g/cm³
Tensile Strength
850-1000 MPa
Yield Strength
450-650 MPa
Hardness
58-60 HRC (after heat treatment)
Modulus of Elasticity
200 GPa
Melting Point
1400-1450°C
Thermal Expansion
10.2 µm/m°C
Chemical Properties:
Element
Composition (%)
Carbon (C)
0.95-1.20
Chromium (Cr)
16.00-18.00
Manganese (Mn)
1.00 Max
Silicon (Si)
1.00 Max
Phosphorus (P)
0.04 Max
Sulfur (S)
0.03 Max
Nickel (Ni)
0.75 Max
Iron (Fe)
Balance
Advantages:
Excellent Durability: 440C offers superior resistance to abrasion, making it ideal for cutting and machining tools.
Heat Treatable: Achieves high hardness levels after heat treatment, providing exceptional strength and wear resistance.
Versatile Applications: Ideal for a wide range of applications that require high strength, corrosion resistance, and hardness.
440C stainless steel black round bars are ideal for industries that require precision, durability, and resistance to harsh environments, making them a popular choice for high-performance parts and components.
