Z508 cast iron electrode 
 Model: EZNiCu-1 
 Description: The nickel-copper alloy (Monel) welding core, strong graphite cast iron electrode, process and machinability are close to the Z308, but because of greater shrinkage and cracking of the poor, low strength of welded joints, not for parts of the welding force can be used to warm at room temperature or low temperature (up to 200 ℃) gray cast iron welding, can be AC and DC dual-use, stable arc, better technology 
 Uses: intensity is not high, gray cast iron welding 
 Chemical Composition of Deposited Metal /% 
 C ≤ 1 S ≤ 0.8 Mn ≤ 2.5 Fe ≤ 6 Ni 60-70 Cu 24-35