2026年1月18日15时01分许，内蒙古包钢板材厂发生重大容器爆炸事故[1]。此次事故造成10人遇难、84人受伤[1]，共对62名相关人员追责问责[1]，其中板材厂7名人员因涉嫌犯罪被批准逮捕[1]。应急部门共投入1300余人参与救援，出动应急和救护车辆70余辆[1]。
调查认定，爆炸直接原因是1号球罐内壁发生"碱应力腐蚀开裂+腐蚀疲劳"复合损伤[1]。该球罐下环焊缝北侧长期受腐蚀和交变载荷作用[1]，最终导致泄漏[1]。泄漏发生后约1.5小时，由于未采取有效措施，球罐内压力超过容器承载能力，最终引发爆炸[1]。
A major container explosion at the Baosteel Plate Mill in Inner Mongolia on January 18, 2026, at approximately 15:01 resulted in 10 deaths and 84 injuries, according to an investigation report made public.[1] The facility, located in Kundu District of Baotou City, was identified as the site of a significant production safety responsibility accident.[1]
Investigators determined that the direct cause of the explosion was composite damage to the No. 1 spherical tank stemming from long-term corrosion and alternating stress, identified as "alkali stress corrosion cracking combined with corrosion fatigue."[1] A crack developed at the lower circumferential weld on the tank's north side, leading to a material leak that persisted for approximately 1.5 hours before internal pressure exceeded the container's load-bearing capacity and triggered the explosion.[1] The accident investigation held 62 related personnel accountable, with seven Baosteel Plate Mill employees charged with criminal offenses and approved for arrest.[1] Emergency response efforts mobilized more than 1,300 personnel and deployed over 70 emergency and rescue vehicles to the scene.[1]