The daily output of p355gh sheet specification reached a new high

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The effect of nitrogen (N) on the properties of P355GH sheet specification 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 p355gh sheet specification and so on steel should be reduced and limited as much as possible. Generally, nitrogen content should not be higher than 0.018%.

Steel plate is divided into rolling, hot rolling and cold rolling. The width of the thin plate is 500 ~ 1500 mm; the width of the thick plate is 600 ~ 3000 mm. Thin plates are classified according to steel types, including ordinary steel, steel, alloy steel, spring steel, stainless steel, tool steel, heat-resistant steel, p355gh sheet specification, bearing steel, etc .; according to use, there are ship plates, pressure vessel plates, atmospheric corrosion-resistant steel plates, bulletproof steel plate.

The higher the strength of the pipeline steel, the wall thickness and diameter can be reduced accordingly without affecting the safety of gas transmission, so as to realize the high-pressure and high-efficiency transmission of natural gas pipelines and greatly reduce the investment in pipeline construction. Therefore, high-pressure large-diameter pipeline steel has comprehensive advantages such as safety, efficiency, and reduced investment. The use of high-grade, large-wall-thick pipeline steel has shown a strong development trend.

ASME SA203 is a low-nickel alloy steel, including five grades of A, B, D, E, and F. SA203 Gr.E steel plate impact temperature -101 ° C. SA203 Gr.D / E / F has good impact toughness and mechanical properties under low temperature working conditions, and is usually used in low temperature environments of -70 ～ -101 ℃ (the tempered state can be -107 ℃). p355gh sheet specification Smelting method: It is smelted by electric furnace + refining outside the furnace + vacuum degassing, and should be fine grain killed steel.