Which material is p355gh sheet high tensile equivalent grade in China

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Phosphorus is a very harmful element in P355GH sheet high tensile steel. With the increase of phosphorus content, the strength, flexion ratio and hardness of p355gh sheet high tensile steel increased, but the plasticity and toughness decreased significantly. In particular, the lower the temperature, the greater the impact on plasticity and toughness, increase the cold brittleness of steel.

The steel grades p355gh sheet high tensile of thick steel plate are basically the same as those of thin steel plate. In terms of steel types, in addition to the bridge steel plate, boiler steel plate, automobile manufacturing steel plate, pressure vessel steel plate and multi-layer high-pressure vessel steel plate, some kinds of p355gh sheet high tensile steel plates, such as automobile girder steel plate (2.5-10 mm thick), checkered steel plate (2.5-8 mm thick), stainless steel plate, heat-resistant steel plate, etc., are crossed with the thin plate.

Today, the prices of black commodity futures market fluctuated upward. The mentality of the spot market is optimistic, and the quotations of p355gh sheet high tensile merchants continue to rise. However, downstream users are more cautious in purchasing, and they basically purchase on demand. Some speculative demands have the willingness to replenish at low prices. At present, there are relatively few p355gh sheet high tensile inventory resources in the market. In addition, the cost of resources in the later stage is relatively high, so businesses are not willing to sell at low prices. On the whole, there are not many short-term new arrival resources, and the shipping pressure of merchants is not big, and the p355gh sheet high tensile price still has certain support. It is expected that the price of p355gh sheet high tensile will fluctuate and be stronger tomorrow.

Heat treatment advantages of p355gh sheet high tensile, SA516 Gr 70 pressure vessel steel: 1) SA516 Gr 70 pressure vessel steel quenching: The hardness of SA516 Gr 70 pressure vessel steel is increased, but the toughness is decreased. 2) SA516 Gr 70 pressure vessel steel normalizing: Improve strength and toughness. 3) SA516 Gr 70 pressure vessel steel annealing: Eliminate quenching effect, eliminate stress, uniform composition. 4) SA516 Gr 70 pressure vessel steel tempering: Uniform composition, slightly reduce hardness, greatly improve toughness.