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WB36钢管(%:0.16C、0.46～0.47Si、1.02～1.05Mn、0.008～0 010P、0.00IS、0.29～0.30Mo、1.17～1.20Ni、0.58Cu、0.02Nb、0.05 Al)冶金流程为45 t EAF-LF-VD-Φ600 mm铸坯-穿孔,ΦP600 m×70 mm-Φ720周期轧管机组轧制.通过控制环形炉加热气氛,均热段温度～1 250℃,穿孔温度1 100℃,随后毛管在周期轧管机中以三向压应力状态进行轧制,WB36钢管淬-回火后的组织为铁素体+贝氏体,室温和高温力学性能以及焊接性能均符合EN10216-2标准要求
WB36 steel pipe (%: 0.16C, 0.46 ~ 0.47Si, 1.02 ~ 1.05Mn, 0.008 ~ 010P, 0.00IS, 0.29 ~ 0.30Mo, 1.17 ~ 1.20Ni, 0.58Cu, 0.02Nb, 0.05Al) metallurgical process for 45 t EAF-LF-VD-Φ600 mm billet - perforation, ΦP600 m × 70 mm-Φ720 cycle rolling mill group ring furnace by controlling the heating atmosphere, the soaking section temperature ~ 1 250 ℃, perforation temperature 1100 ℃, then The capillary tube is rolled in a three-phase compressive stress state in a rolling mill. The structure of WB36 steel tube after quenching-tempering is ferrite + bainite. The mechanical properties at room temperature and high temperature as well as the welding performance meet the requirements of EN10216-2