延えん性せい

noun, noun which may take the genitive case particle 'no'

ductility; malleability

Technical term in materials science and engineering. Refers to the ability of a solid material to deform under tensile stress; often characterized by the material's ability to be stretched into a wire.

• 金きんは延えん性せいに富とんだ金きん属ぞくです。

  Gold is a metal with high ductility.

• この合ごう金きんは延えん性せいが低ひくいため、加か工こうが難むずかしい。

  This alloy has low ductility, so it is difficult to process.