When talking about precision pipe, always means for small diameters seamless pipe or stainless pipe, how is that?And what is differences between precision steel pipe and normal steel pipe?<\/p>\n
So today we are going to explain what is precision pipe from below aspects:<\/p>\n
Material Standards Precision pipe is the carbon, alloy or stainless steel pipe with high precision sizes. Usually it has been made through hot rolling or cold drawn (cold rolling) processes. So precision pipe is a kind of seamless pipe.<\/p>\n It is designed with several advantages: With these advantages it is widely used for manufacturing the pneumatic parts and hydraulic components.<\/p>\n International standard for precision pipe is DIN 2391, which is applied with European standard.<\/p>\n As a matter of fact, more steel pipe standard could applied for the precision pipe. Includes DIN2445, EN10305, DIN1630, DIN1629, ASTM A106, ASTM A179, JIS G3445<\/p>\n Materials available with 10#, 20#, 35, 45, 40Cr, 25Mn. 37Mn5, St35(E235), St37.4, St45(E255), St52(E355) and etc.<\/p>\n For hot rolling precision steel pipe, tolerance of OD is +\/- 0.1%. During manufacturing processes, the key point is to do the annealing for raw materials. <\/p>\n Precision steel pipe manufacturing flow chart: As we know, most of precision steel pipe has cold drawn and hot rolled process. On the contrast, cold rolling will be more complicated. Not only the pipe need to be continuous rolled by three roller, but also the test have to be done after extrusion, so to guarantee the quality of the precision pipe materials.<\/p>\n Manufacturing methods of seamless precision pipe includes hot rolling and cold drawn. More over it could be manufactured in welding processes.<\/p>\n a. You can get a smaller diameter with precision steel pipe The internal and external diameter could control within +\/- 0.01 mm. In the guarantee of anti-bending strength and torque strength same, the weight of precision pipe is lighter. It can be widely used in manufacturing precision machinery parts and engineering structure, and also commonly used to produce various kinds of conventional weapons, barrel, shells, bearing and so on.<\/p>\n","protected":false},"excerpt":{"rendered":" When talking about precision pipe, always means for small diameters seamless pipe or stainless pipe, how is that?And what is differences between precision steel pipe and normal steel pipe? So today we are going to explain what is precision pipe from below aspects: Material Standards Manufacturing Processes Size Tolerances Features Applications What is precision pipe […]<\/p>\n","protected":false},"author":2,"featured_media":3908,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[253],"_links":{"self":[{"href":"https:\/\/www.octalsteel.com\/wp-json\/wp\/v2\/posts\/3904"}],"collection":[{"href":"https:\/\/www.octalsteel.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.octalsteel.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.octalsteel.com\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.octalsteel.com\/wp-json\/wp\/v2\/comments?post=3904"}],"version-history":[{"count":2,"href":"https:\/\/www.octalsteel.com\/wp-json\/wp\/v2\/posts\/3904\/revisions"}],"predecessor-version":[{"id":3906,"href":"https:\/\/www.octalsteel.com\/wp-json\/wp\/v2\/posts\/3904\/revisions\/3906"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.octalsteel.com\/wp-json\/wp\/v2\/media\/3908"}],"wp:attachment":[{"href":"https:\/\/www.octalsteel.com\/wp-json\/wp\/v2\/media?parent=3904"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.octalsteel.com\/wp-json\/wp\/v2\/categories?post=3904"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.octalsteel.com\/wp-json\/wp\/v2\/tags?post=3904"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\nManufacturing Processes
\nSize Tolerances
\nFeatures
\nApplications<\/strong><\/p>\nWhat is precision pipe<\/h2>\n
\nInside and outside surface no oxide coating;
\nIt could bear high pressure, no leaking;
\nStrict less tolerance;
\nSurface smooth;
\nNo reformation in cold bending, no cracks during flaring test, and flattening test. <\/p>\nPrecision steel pipe material standard<\/h2>\n
Size Tolerances<\/h2>\n
\nFor cold drawn precision pipe, tolerance allowed in below conditions:
\nDiameters 6mm to 10mm, normal tolerance condition +\/- 0.2%, premium tolerance condition +\/- 0.15%.
\n10mm to 30mm, normal tolerance condition +\/- 0.4%, premium tolerance condition +\/- 0.2%.
\n30mm to 50mm, normal tolerance condition +\/- 0.45%, premium tolerance condition +\/-0.3%.
\nFor outer diameters above 50mm, normal tolerance condition +\/- 0.1%, premium tolerance condition +\/- 0.8%.<\/p>\nKey processes in manufacturing the precision steel pipe<\/h2>\n
\nRaw Material Inspection – Remove Oxide Layer – Visual Inspection – Heating – Hot Rolling – Pickling and Passivation (Phosphating) – Grinding – Lubrication and Drying – Cold Rolling (Internal and external extraction) – Remove Oil – Ends Cutting – Inspection – Marking – Packing and Storage<\/p>\nFeatures<\/h3>\n
\nb. High precision pipe accept small quantity for MOQ.
\nc. The pipes with cold drawn processes has high precision and good surface finish.
\nd. The transverse area of the steel pipe is more complicated.
\ne. Performance is superior, with higher density.<\/p>\nApplication<\/h2>\n