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T91 steel pipe is a kind of ferritic heat-resistant steel. T91 steel pipe is developed on the basis of 9Cr1Mo(T9) steel, using metallurgical technology of purification and crystallization, as well as microalloying, controlled rolling, and controlled cooli

DIN 1630 ST52.4 seamless steel pipe is a long steel with a hollow section and no joints on the periphery. DIN 1630 ST52.4seamless steel pipe has a hollow section and are used in large quantities as pipes for conveying fluids. Compared with solid steel suc

DIN 17175 14mov63 steel pipe shall be manufactured by hot rolling or cold rolling, hot pressing, hot drawing or cold drawing according to DIN 17175. DIN 17175 14mov63 steel pipe heat treatment: pipes shall be provided with proper heat treatment for the wh