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Stainless steel 440C | 1.4125 | X105CrMo17
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  • Material type

    Metal

  • Material name

    Stainless steel 440C | 1.4125 | X105CrMo17

  • Alternative names

    X105CrMo17, 1.3544, 1.4125

  • Process compatibility

    CNC machining
This high-carbon martensitic stainless steel boasts high strength, moderate corrosion resistance, and exceptional hardness and wear resistance. Following heat treatment, it achieves the peak strength, hardness, and wear resistance among all stainless steel alloys, a result of its high carbon content. Consequently, 440C is highly suitable for applications such as ball bearings and valve components.
Sunnyhowe
Mechanical properties
Ultimate tensile strength
560 - 800 MPa
Yield strength
340 - 430 MPa
Young's modulus (modulus of elasticity)
204 - 215 GPa
Elongation at break
14 - 18 %
Physical properties
Corrosion resistance
Moderate
Magnetism
Magnetic
Weldability
Poor
Thermal properties
Thermal expansion coefficent
10 - 10.2 10^-6/ºC
Thermal conductivity
22 - 24.2 W/(m⋅°C)
Electrical properties
Electrical resistivity
60 μΩ*cm
Post treatments
Post-Processing
Cold and hot working, Annealing, Tempering, Hardening
Anodizing compatibility
Not suitable
Common applications
Gage blocks
Ball bearings and races
Molds and dies
Valve components
Measuring instruments

Tagged: Metal Stainless steel
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