Mechanical properties of the metal material of the metal material to resist damage to the performance under load , referred to as the mechanical properties (or mechanical properties ) . Mechanical properties of metallic materials is mainly based on the design and selection of parts when . Applied load different properties ( such as tensile , compression, torsion, impact , cyclic loading, etc. ) , the mechanical properties of metallic materials required will be different . Common mechanical properties include : strength, ductility , hardness , toughness, impact resistance and fatigue limit many times and so on . The following will discuss a variety of mechanical properties.

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