CONTACT

  • Milestone Metal (Changzhou) Co., Ltd.
    Milestone Metal (Changzhou) Co., Ltd.
    ADD: Plant G7, No.118, Zhennv Road,  Liyang, 213376, Changzhou, Jiangsu, China
    TEL:+86-519-87805959
    FAX:+86-519-87805959
    E-mail: sales@milestone-metal.cn
  • AMET Intelligent Manufacturing (Jiangsu) Co., Ltd.
    AMET Intelligent Manufacturing (Jiangsu) Co., Ltd.
    ADD: Plant G7, No.118, Zhennv Road,  Liyang, 213376, Changzhou, Jiangsu, China
    Tel: 0519-87805959
    Fax: 0519-87805959
    E-mail: sales@milestone-metal.cn
  • AMET Intelligent Equipment (Tianjin) Co., Ltd.
    AMET Intelligent Equipment (Tianjin) Co., Ltd.
    ADD: Building 1-4, Shengyuan Road, Xiqing District, Tianjin City, 300385
    Tel: 022-59653718
    Fax: 022-59653716
    E-mail: support@ametchina.cn
P91 Manual Butt Welding
P91 (10Cr9Mo1VNb) is a martensitic heat-resistant steel, serving as the key material for high-temperature and high-pressure components such as power station boilers and main steam pipelines.

The mainstream manual butt welding process adopts TIG welding for root pass + SMAW for filling and capping. Strict control of temperature and heat input is implemented throughout the process to ensure the high-temperature creep strength and crack resistance of the welded joint.




Manual butt welding of P91 is suitable for the field installation and maintenance of high-temperature and high-pressure pipelines in power stations, petrochemical and nuclear power industries. With a mature and controllable process, it is a reliable manual welding solution for the butt joining of high-temperature pressure-bearing components.

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