History of Electrum. This gold-silver alloy has a long history of being used by humans. It was used for different purposes since third millennium BC. However, the variation in the gold and silver contents of this alloy made it difficult to decide the value of each coin.
To measure a material's ductility, the tester typically takes a measurement of the material's tensile strength. Tensile strength examines how far the material can stretch without breaking. This ability is similar to malleability, though they each have a slight difference. Instead of measuring tensile strength, or essentially how far the metal can stretch, malleability measures how much pressure a material can take without breaking or cracking.
malleability refers to metals which can be hammered into different shapes.   ductility refers to metals which can be drawn into wires.   Not all metals are malleable or â¦ ductile.Cast iron, for example, is quite hard but brittle. But metals that are malleable or ductile are so because of the way in which atoms are arranged.In a metal the atoms lie close together and, while they strongly attract one another, may be able to flow past each other whilst maintaining their proximity, and the metal's shape can be changed. Not all metals are malleable or â¦ ductile. Cast iron, for example, is quite hard but brittle. But metals that are malleable or ductile are so because of the way in which atoms are arranged.