Yosun (Tianjin) Piping Engineering Co., Ltd. is one of the most credible manufacturers and suppliers of cold-worked and hot-worked pipe in China. Please feel free to wholesale customized cold-worked and hot-worked pipe at competitive price from our factory. If you have any enquiry about quotation, please feel free to email us.
[ Scope]
This appendix lists the conditions and finished in which pipe and tube(other than converter sizes) are normally supplied. These are subject to changes, and the manufacturer should be consulted for the latest information available.
[Cold-Worked Tube and Pipe]
Cold-worked,Annealed,with Ground Outside Diameter----The inside diameter may have a bright finish when material is annealed in a protective atmosphere; otherwise,the inside diameter is supplied descaled as necessary.It is abailable in sizes 1/2 to 4 in.(12.7 to 102 mm),inclusive, in outside diameter in both normal and heavy-wall tube,and pipe sizes, all schedules,of corresponding outside-diameter dimensions.
Cold-Worked,Annealed, and Pickled(Not Ground)-----Outside and inside diameter will have dull, matte (pickled) surfaces.It is available in sizes 1/2 to 6 5/8 in.(12.7 to 168 mm), inclusive,in outside diameter in both normal and heavy-wall tube,and pipe sizes,all schedules,of corresponding outside-diameter dimensions.
[Hot-Worked Tube]
Hot-Worked-Annealed(Not Pickled) Tube----Has an oxide surface resulting from the hot-working operation.In tended generally for nachined parts where the oxide surface will be removed.
Hot-Worked-Annealed ( Pickled) Tube----Has the oxide surface removed on both outside and inside diameters by picking.Surface may be spot ground for removal of minorsurface imperfections at the manufacturer's option.
Hot-Worked-Annealed ( Machined outside and Inside Diameters) Tubes----The outside and inside diameter surfaces are machined to specified dimensions.Minor surface imperfections may be spot ground for removal,at the manufacturer's option.
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