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Stainless Steel 17-4 PH | 1.4542 | X5CrNiCuNb16-4 - Annealed state
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  • Material type

    Metal

  • Material name

    Stainless Steel 17-4 PH | 1.4542 | X5CrNiCuNb16-4 - Annealed state

  • Alternative names

    1.4542, X5CrNiCuNb16-4

  • Process compatibility

    CNC machining
The 17-4 stainless steel bar belongs to the category of age-hardening martensitic alloys, which means it can achieve a diverse range of strength and toughness properties based on the precipitation or aging temperature employed during the hardening process. Engineers and designers prefer this steel due to its exceptional blend of high strength, excellent corrosion resistance, and toughness in both its base metal and weldments. It is also recognized by the names 17-4 PH, UNS S17400, and Grade 630.
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Mechanical properties
Ultimate tensile strength
790 - 1200 MPa
Yield strength
520 - 860 MPa
Young's modulus (modulus of elasticity)
197 - 207 GPa
Elongation at break
3 - 16 %
Physical properties
Corrosion resistance
Excellent
Magnetism
Magnetic
UV resistance
Excellent
Weldability
Moderate
Thermal properties
Maximum service temperature
282 - 316 °C
Thermal expansion coefficent
12.5 - 13.1 10^-6/ºC
Thermal conductivity
17.3 - 18.7 W/(m⋅°C)
Electrical properties
Electrical resistivity
75 - 85 μΩ*cm
Post treatments
Post-Processing
Not suitable
Anodizing compatibility
Not suitable
Common applications
Aerospace applications
Base plates
Chemical processing equipment
Nuclear components
Oil and petroleum refining equipment

Tagged: Metal Stainless steel
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