X42 pipeline steel

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X42 pipeline steel chemical composition optimization design


The function of C in X42 pipeline steel is to improve the strength, but too high carbon content will reduce the plasticity and impact toughness of X42 pipeline steel, and will also reduce the corrosion resistance of X42 pipeline steel to large gas. The important thing is that C has a negative effect on the weldability of X42 pipeline steel.

Carbon content in most steel product specifications is capped. For X42 pipeline steel, carbon equivalent Ce and crack sensitivity coefficient Pcm are important control indexes of weldability and weld tear of X42 pipeline steel, and the carbon content will directly affect this index. Therefore, it is necessary to adopt low-carbon design in composition design of X42 pipeline steel.

The ratio of Mn to C can also affect the ductile and brittle transition temperature of X42 pipeline steel. In addition, Mn has an effect on the HIC resistance of X42 pipeline steel. According to the different requirements of thickness and strength of X42 pipeline steel, the mass fraction of Mn in steel is generally controlled at 1.1% and 2.0%.

If you want to purchase high quality X42 pipeline steel, please contact Katalor. We can supply X42 pipeline steel with different sizes and high quality to meet your any requirements. Welcome to contact us for free. We will give you the best price in X42 pipeline steel.

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