What are the welding precautions for Q355NH steel exporter

BEBON Iron & Steel has fully passed the ISO9001 quality system certification, marine steel has passed 9 countries' classification societies, and construction steel has obtained the CE Lloyd's CE Mark certification. The main body of Q355NH steel exporter steel passed ISO14001 environmental management system certification and OHSAS18001 occupational health and safety management system certification. The main Q355NH steel exporter production processes and technical equipment of the enterprise have reached the international advanced level, the comprehensive competitiveness has entered the international advanced ranks, and the international influence has been significantly enhanced.

42CrMo steel plate is a strength steel with high strength and toughness, good hardenability, no obvious temper brittleness, high fatigue limit and multiple impact resistance after quenching and tempering treatment, and good low temperature impact toughness. The steel Q355NH steel exporter is suitable for manufacturing large and medium-sized plastic molds that require certain strength and toughness.

In the manufacturing process of boiler pressure components, raw materials must undergo complex processing deformation and welding, so the steel used to manufacture the boiler must also have good process performance. All materials Q355NH steel exporter used to manufacture pressure parts must conform to the relevant national standards for boiler steel. The defects such as delamination, non-metallic inclusion, porosity and looseness in the steel shall be as few as possible, and white spots and cracks are not allowed.

The effect of nitrogen (N) on the properties of Q355NH steel exporter and so on steel is similar to that of carbon and phosphorus. With the increase of nitrogen content, the strength of steel can be significantly improved, especially the plasticity, especially toughness, and the weldability will be decreased, and the cold brittleness will be intensified. At the same time, aging tendency, cold brittleness and hot brittleness will be increased, which will damage the weldability and cold bending property of steel. Therefore, the nitrogen content in Q355NH steel exporter and so on steel should be reduced and limited as much as possible. Generally, nitrogen content should not be higher than 0.018%.

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The results of adopting two-level Q355NH steel exporter service system and implementing standardized management are mainly reflected in the formation of vigorous work style such as quick response and quick action. Our company's customer service center stipulates that employees must be accurate and quick in technical support and Q355NH steel exporter after-sales service. Through the formation of this fast, agile, vigorous style, to provide users with satisfactory service.