Yield Strength

The material characteristic value yield strength determines the range up to which no permanent change, i.e. plastic deformation, occurs when the material is exposed to tensile stress.

The limit value is determined by a tensile test. Here the material is stretched until it breaks. The yield point is the value at which a material begins to deform plastically and does not return to its original shape after the strain has ceased.

Two yield strengths can often be determined for materials:

  • Upper yield strength: maximum stress at which no permanent plastic deformation occurs
  • Lower yield strength: lowest stress at which the material just not starts to deforms and does not return to its original shape.

See also

Elasticity

Elasticity is a material property that provides information about the ability of materials to withstand stress.

Read more
Forgeability

The forgeability of steel depends on the carbon content but also on various alloying elements.

Read more
Hardness

The hardness defines the mechanical resistance that the material is able to withstand mechanical impact of other materials.

Read more

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