Active Member
|
[China]
Address: Room 11718,17, FF, Building 5, Core Business District, East Contemporary International Plaza, Dongchang Road, Liaocheng Economic and Technological Development Zone, Shandong Province
Contact name:Milly Miao
Shandong Xiangtong Huiyuan Metal Materials Co., Ltd. |
|
|
Cold Rolled Steel Pipe Tube
Cold rolled precision seamless steel pipe is a high-precision steel pipe material. The main categories are: precision seamless steel pipe, precision hydraulic seamless steel pipe, cold-drawn precision seamless steel pipe, cold-rolled precision seamless steel pipe, high-precision seamless steel pipe, precision bright seamless steel pipe.
(1) Main varieties of steel pipes: DIN series high-precision precision bright seamless steel pipes, special steel pipes for hydraulic systems, special steel pipes for automobile manufacturing.
(2) Main standards: DIN2391, DIN2445, EN10305, DIN1629, DIN1630, ASTM A179.
(3) Main material: ST35 (E235) ST37.4 ST45 (E255) ST52 (E355).
(4) Main delivery status: NBK (+N) GBK (+A) BK (+C) BKW (+LC) BKS (+SR).
(5) Main features: There is no oxide layer on the inner and outer walls of the steel pipe, no leakage under high pressure, high precision, high finish, no deformation after cold bending, no cracks in flaring and flattening.
(6) Main uses: used in hydraulic system piping, automobile manufacturing piping, military industry, construction machinery, railway locomotives, aerospace, ships, injection molding machines, die-casting machines, machine tools, diesel engines, petrochemicals, power plants, boiler equipment and other industries .
(1) pipe material supply, the pipe materials used are hot-rolled finished pipes or semi-finished pipes, extruded pipes and welded pipes;
(2) pipe material preparation, including inspection, bundling, acid Washing, cleaning, rinsing, neutralizing, drying, lubricating, etc.;
(3) Cold working (cold rolling or cold drawing);
(4) Finishing of finished products includes heat treatment of finished products, straightening, sampling, cutting heads and tails, inspection ( Manual inspection and various flaw detection), hydraulic test, oiling, packaging, storage, etc. Different products have different finishing contents.
