High-plasticity and low-yield-ratio straight seam welding steel round pipe with yield strength larger than or equal to 355MPa and manufacturing method of high-plasticity and low-yield-ratio straight seam welding steel round pipe

The invention belongs to the technical field of steel round pipe preparation, and particularly relates to a high-plasticity low-yield-ratio straight seam welding steel round pipe with the yield strength larger than or equal to 355 MPa and a manufacturing method of the high-plasticity low-yield-ratio...

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Bibliographische Detailangaben
Hauptverfasser:	QI WEIWEI, HOU GUANGDA, WU XUPENG, LI YUGONG, LIU XUDONG, MA HENG, ZHANG LIANGLIANG, HUANG ZHIDONG, SUN QIAN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ALLOYS CHEMISTRY COMBINED OPERATIONS FERROUS OR NON-FERROUS ALLOYS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS MACHINE TOOLS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METAL-WORKING NOT OTHERWISE PROVIDED FOR METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS OTHER WORKING OF METAL PERFORMING OPERATIONS TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS UNIVERSAL MACHINE TOOLS
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