包钢板材厂爆炸事故调查报告公布

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