Boiler Tube Coating by Twin Wire Arc Spray system provides hard coating over base metal. Boiler Tube Coating by Twin Wire Arc Spray system is done by metal wire.Boiler Tube Coating by Twin Wire Arc Spray system is done by different material like Chrome Carbide Nickel Chrome, Tungsten Carbide etc. Boiler Tube Coating by Twin Wire Arc Spray system has a porosity less than 5 %. Boiler Tube Coating by Twin Wire Arc Spray system has excellent bond strength of 3000 psi.