TB/T 1979 railway weathering steel mechanical properties

TB/T 1979 railway weathering steel is to add a certain amount of copper, nickel and other elements to the steel during welding, so as to form a compact oxide film during atmospheric oxidation, thus preventing further oxidation of the atmosphere and the matrix. When the carbon content of TB/T 1979 railway weathering steel is high, the greater the hardness is, the greater the cold tendency of the heat affected zone is. The welding performance of TB/T 1979 railway weathering steel is cross.

TB/T 1979 railway weathering steel has the following mechanical properties.
Yield strength: more than 355MPa
Tensile strength: 490-630MPa
Elongation after fracture: more than 22
Impact temperature: 0 degree

TB/T 1979 railway weathering steel is a kind of special steel specially used in railway, which is a kind of special steel in weathering steel. Weathering steel has unique mechanical properties. Railway steel requires TB/T 1979 railway weathering steel to have high strength, high weathering resistance and special specifications. TB/T 1979 railway weathering steel is produced to meet this requirement. The production and smelting process of railway weathering steel is very complicated.