For Marine,boiler,pressure vessel,mining engineering machinery,ocean engineering structure and other important structure welding Type Model (GB) Chemical composition (%) CMnSiSPotherTHJ502NiCu E5003-G0.120.30/0.900.350.0300.035Cu0.20/0.50 Ni0.20/0.50THJ506NiCu E5016-G0.120.30/0.900.700.0300.035Cu0.20/0.50 Ni0.20/0.50THJ506RE5016-G0.101.000.400.0300.035Ni ≥ 0.50THJ606E6016-D10.121.25/1.750.600. ...