EN-GJS-500-7C, also known as GGG50, is a material with a predominately ferric/pearlitic structure and is one of the most commonly used in the ductile iron family. This grade offers good tensile strength and a satisfactorily high yield point combined with good toughness, which makes this the grade of choice across many industries. In comparison to EN-GJS-400-15C (GGG40), this material is the ideal choice for applications where the level of wear and tear is high. It possesses excellent machinability and can be used up to about 450°C. By annealing, this grade can be converted to EN-GJS-400-15C or EN-GJS-400-18C which has lower strength but exhibits much higher elongation and better impact resistance.