How to avoid quality problems of P355NL1 pressure vessel steel sheet

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The carbon tool steel thick plate is made of carbon tool steel and is made by hot rolling. This carbon tool steel has good cold and hot processing performance, high hardness and plastic resistance, low production cost and wide range of uses. P355NL1 pressure vessel steel sheet, Carbon tool steel is usually delivered in an annealed or high temperature tempered state. It is mainly used to manufacture cutting tools, measuring tools and molds with low cutting speed, simple shape and low precision. The thickness of the steel plate is 4.5-25mm, and the width and length comply with GB709 regulations.

Quenching is a common heat treatment process. It is the metal heat treatment process in which the P355NL1 pressure vessel steel sheet metal workpiece is heated to a proper temperature and kept for a period of time, then immersed in the quenching medium for rapid cooling. Quenching can improve the strength and hardness of steel in a large range, and adjust the coordination between P355NL1 pressure vessel steel sheet strength and hardness, plasticity and toughness. Quenching is generally used as the final heat treatment.

As to the Chemical composition, the different content is a main on carbon content, while the carbon content of P355NL1 pressure vessel steel sheet, A283Gr. D is no more than 0.27% and it is higher than Grade C (≤0.24%) ; as to the mechanical property, the differences are tensile strength and yield strength, while the tensile strength of ASTM A283 Gr.D is 415-550MPa (60-80 ksi) and yield strength of ASTM A283 Grade D is 230MPa (33 ksi).

Booking space and making power of attorney (ten copies of order); the data of the original order shall be correct and consistent to the greatest extent when making the order, so as to reduce the frequent changes in the subsequent process. For booking with the company's seal for booking space, if the accessories for booking space (such as the price confirmation document of the shipping company) need to be provided, they can only be booked with all of them. Obtain the shipping space allocation receipt and extract the ship name, voyage number and B / L number information.

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