Shandong Xiangtong Huiyuan Metal Materials Co., Ltd.
Shandong Xiangtong Huiyuan Metal Materials Co., Ltd.
Add to Cart
Standard: ASTM, DIN, JIS, GB, EN, BS.
Steel Grade: ST37,ST42,ST45,ST52.
Out Diameter: 20-200mm
Thickness: 0.1-20mm
Length: 3-8m, Customize according to customer requirements.
Cold Rolled Steel Pipe Tube
Cold-drawn 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 .
Application
Precision steel pipes are widely used in automobiles, motorcycles, electric vehicles, petrochemicals, electric power, ships, aerospace, bearings, pneumatic components, seamless steel pipes for medium and low pressure boilers, etc.
(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.
