GLOBAL GRAPHITE CAST IRON WHAT IS
SG (Global Graphite) Iron?
Developed in 1943, it was found that graphite added to form nodules rather than scales by adding magnesium before casting. This resulted in a new material with excellent tensile strength and ductility. Adding these mechanical properties of this material to the advantages already provided by cast iron has allowed it to enter almost every major engineering field in a short time. In most cases, replacement of existing steel castings or tattoos due to cost savings.
Properties:
Dayanım
Strength Tensile strength up to 900N / mm2 (ADI offers higher resistance). Ductility more than 20% extensions (low degrees only)
Compared to other ferrous metals.
Ease of Processing.The free graphite in the structure also contributes to the machining process.
Cost Per Unit PowerSignificantly cheaper than most materials.
MetallurgySG Iron composition varies slightly from that of Gray Iron, but this material offers ductility and increased power. This is due to the fact that one of the many names proposed in the microstructure (Nodular Iron) is suggested to be graphite spheres (referring to the formation of nodules). rather than scales. While the gray iron gives its unique properties, the stamps damage the mechanical force and prevent the continuity of the metallic matrix. The sharp edges of the washers, on the other hand, are further reduced as tensioner risers. G Iron does not experience this problem because graphite is in separate areas, thus ensuring the continuity of the matrix and ensuring ductility. Since the graphite does not have sharp edges, there are no stress boosters that will otherwise reduce the strength of the metal matrix.
