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  • Weight calculation formula for seamless steel pipe
  • Author:Anji County PengDa Steel Pipe Co.,Ltd.Date:2018-08-02 15:15 Click:

formula




Seamless tube process flow




Health grade mirror tube process flow:


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Tube billet - Test - peeling - Test - heating - perforation - acid washing - grinding - lubrication air drying - welding head - cold drawing - solid solution treatment - acid washing - acid washing passivation - Inspection - cold rolling - deoiling - dry - internal polishing - External polishing - Inspection marking - - finished packaging




Industrial pipe process flow




Tube billet - Inspection - peeling - Test - heating - perforation - acid washing - repairing mushrooms - lubrication air drying - welding head - cold drawing - solid solution treatment - acid washing and passivation




Seamless steel pipe size and allowable deviation




Deviation grade standardized external diameter allowable deviation




D1 + 1.5%, smaller than 0.75 mm




D2 + 1%. Less than 0.50 mm




D3 + 0.75%. is smaller than 0.30 mm




D4 + 0.50%. Less than 0.10 mm




Weight formula for seamless steel pipe




[outer diameter wall thickness * wall thickness]*0.02466=kg/ m (weight per meter)


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