Metal tantalum is a rare metal whose content is very low in nature and is mainly produced by electron beam or vacuum arc smelting. Its energy consumption during smelting is high, so it is expensive. Tantalum has stable performance at room temperature, with a small coefficient of linear expansion, good ductility, high thermal conductivity, and good high-temperature strength and processing performance.
The corrosion resistance of tantalum is better than that of titanium, zirconium, and niobium. Except for oleum, hydrofluoric acid, and other media, the corrosion resistance of tantalum in most industrial acids is very good. Tantalum is not very sensitive to notch and is not prone to local corrosion such as corrosion fatigue, and the corrosion type is uniform corrosion. Therefore, tantalum is mainly used in petrochemical equipment in the form of tantalum composite plates and lining structures. The welding process of tantalum cladding or tantalum tube is a key step in the manufacture of tantalum clad plate equipment, so solving the problem of tantalum welding is the premise for the wide application of tantalum in chemical containers.
Baoji Taicheng Clad Metal Materials Co., Ltd is a tantalum clad plates manufacturer. The following are the characteristics and welding precautions of tantalum metal organized by professional manufacturers for you.
(1) Compared with steel, tantalum has higher stiffness and elongation, lower hardness, and close upper yield strength and tensile strength;
(2) In order to ensure the welding quality of the tantalum clad plate and avoid mutual dissolution of tantalum and steel, the thickness of the cladding layer of the tantalum steel clad plate should be at least 2.5mm;
