High-corrosion-resistance gas protection welding wire

Abstract

The invention belongs to the field of welding materials, and relates to a high-corrosion-resistance gas protection welding wire. The welding wire comprises the following chemical compositions in percentage by mass: 0.01-0.1 percent of C, 0.1-1.0 percent of Si, 0.3-1.0 percent of Mn, less than or equal to 0.015 percent of P, less than or equal to 0.015 percent of S, 1.5-5 percent of Ni, 0.5-1.5 percent of Cr, 0.1-0.8 percent of Cu, 0.01-0.2 percent of Ti, 0.15-0.6 percent of Mo, less than or equal to 0.01 percent of O, less than or equal to 0.01 percent of N and the balance of ferrum. The welding wire has stable welding performance, and obtained deposited metal is matched with the corrosion resistance of parent metal; and meanwhile, the welding wire has high comprehensive mechanical performance, and is particularly suitable for novel high-weather-proof steel.

Description

technical field [0001] The invention belongs to the field of welding materials, and relates to a high-corrosion-resistant gas-shielded welding wire material for metal material welding, and is especially suitable for steel types requiring high weather resistance. Background technique [0002] Ordinary weathering steel and high-strength weathering steel have good economic performance, excellent processing performance and comprehensive performance, but their atmospheric corrosion resistance cannot meet the current requirements of weathering steel for railway wagons; the weathering performance of stainless steel can meet the conditions of use of wagons, but the price is expensive , and stainless steel still has certain problems in low temperature toughness, weldability, etc., which restricts its application in railway vehicles. [0003] In recent years, with the rapid development of the railway industry, the railway wagon industry is in urgent need of a weathering steel with goo...

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Problems solved by technology

[0007] Table 2. Prior Art Wel

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