316 stainless steel contains 2-3% molybdenum for better corrosion resistance. Available in grades 316, 316L, 316H, 316Ti, 316Cb, 316N, 316LN. Excellent mechanical properties including strength and ductility
Two metal pieces are joined end-to-end without overlap. Surfaces must be on same plane for weld metal to remain within planes. Can be automated or hand-done on steel or copper with brazing
Handbook provides guidance for modern welding on ships. First maritime welding handbook developed in 1950s. UNITOR company traces back to 1905 as Acetylene producer. Company name changed to UNITOR in 1943. Became Unitor Ships Service AS in 1968
Welding combines pieces using heat and/or compression to form a continuum. Arc welding uses electricity to create controlled lightning-like arc. Filler metal is melted into weld using wire feed or manual electrode. Welding groove is created before starting process
T-50 rod for mild steels and 490MPa tensile strength steel. T-50G and T-53 rods for mild steels and 490MPa steel respectively. T-70S2 rod for offshore drilling rigs and structural steels. T-100 and T-120 rods for 690MPa and 830MPa high strength steels. T-80D2 and T-81CMA rods for heat-resistant steels
Pipelines transport liquids from one point to another. Pipeline welding joins pipes at fixed lengths. Required in various industries including construction and oil/gas