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0.7070
EN-GJS-700-2 (GGG-70)
0.7070 (EN-GJS-700-2 (GGG-70)) is ductile [[glossary:kugelgraphit|iron]] ([[element:C|spheroidal graphite]]): tough and strong like some steels because the [[glossary:kugeln|carbon]] is present as nodules. Welding is possible but requires [[glossary:vorwaermen|preheating]]. Typical composition: 3.35 % C, 0.8 % Mn, 2 % Si.