what is gb t 4171 q415nh corten steel data sheet
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The preparation of what is gb t 4171 q415nh corten steel data sheet galvanized steel before welding is the same as that of ordinary low-carbon steel. It is necessary to carefully handle the groove size and nearby galvanized layer. In order to achieve penetration, the groove size shall be appropriate, generally 60 ~ 65 °, with a certain gap, generally 1.5 ~ 2.5mm; in order to reduce the penetration of zinc into the weld, the galvanized layer in the groove can be removed before welding. In the practical work, the centralized beveling, no blunt edge technology for what is gb t 4171 q415nh corten steel data sheet centralized control, two-layer welding process, reducing the possibility of incomplete penetration.
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The weldability of what is gb t 4171 q415nh corten steel data sheet is good. It means that under certain process and construction conditions, what is gb t 4171 q415nh corten steel data sheet can obtain good performance after welding. Weldability is a measure of the hot workability of steel. Weldability can be divided into weldability in construction and weldability in use. Weldability in construction refers to the sensitivity of cracking in weld metal and near seam zone, and hardening sensitivity of steel in near seam zone. Good weldability means that under certain welding process conditions, the weld metal and steel near the seam do not produce cracks. Weldability in use means that the mechanical properties of weld and HAZ steel are not lower than those of base metal.