forging ring Material: 42CrMo,42CrMo4,45#,CK45,16Mn etc kinds of material, Heat Treatment:Normalizing, Quechning and Tempering forging ring, forged ring, weld neck flange, forging flange, forged flange, forged parts, forging parts,Max. Weight2 tonsMax. Diameter: 2MMaterial42CrMo,42CrMo4,45#,CK45,16Mn etc kinds of materialHeat TreatmentNormalizingQuechning+Tempering forging ring