Introduction to precision steel Pipe

 Precision steel tube is a kind of high precision steel tube material processed by cold drawing or hot rolling. Precision steel tube is mainly used in chemical industry, petroleum, medicine, food, energy, electric power, aerospace, environmental protection, boiler heat exchanger and so on.  Specifically including automobiles, motorcycles, electric vehicles, petrochemical, ships, bearings, pneumatic components, middle and low pressure boiler seamless steel pipe, steel sleeve, bearings, hydraulic, mechanical processing and other fields!

ASTM1045 1020 1030 Precision Steel pipe

•  ASTM1045 ,The inner and outer walls of no.45 precision steel tube have no oxidation layer, withstand high pressure, no leakage, high precision, high finish, no deformation in cold bending, flaming, flattening without cracks, and anti-rust treatment on the surface.  It is suitable for automobiles, machinery fittings and other machines with high requirements on precision and smoothness of steel pipes.  The tolerance can be maintained at 2-8 wire, so the user is slowly changing the material from seamless steel pipe or round steel to precision bright seamless steel pipe.

• ASTM1020, 20 precision steel pipe is widely used in hydraulic system with precision steel tube, injection molding machine with precision steel, shipbuilding, steel pipe, seamless steel pipe used in hydraulic cutting machine, high pressure steel pipes, fittings, machinery, sanitation vehicle, shipbuilding industry, metal processing, military industry, diesel engine, the internal combustion engine, air compressor, construction machinery, forestry machinery, etc.  Due to less tolerance, so many machining users in order to save labor, material, time loss, choose precision steel pipe.

•  ASTM1035, no.35, which has good plasticity and appropriate strength, boasts good process performance and fair welding performance, is mostly used in normalizing and quenching and tempering states.  Widely used in the manufacture of all kinds of forgings and hot pressed parts, cold drawing and top forging steel, in mechanical manufacturing manufacturing into a variety of parts, such as crankshaft, rotating shaft, shaft pin, lever, connecting rod, beam, sleeve, ring and so on.

  

 Quality requirements for precision steel tubes of various materials

•  capillary.  The thickness of capillary wall should be uniform and the internal and external surface defects should be few.  External surface polishing and internal hole defect cleaning equipment shall be provided.

•  the re-inspection.  Compared with ordinary steel pipe, the production of precision steel pipe has increased the pickling and reinspection process of hot rolled wool tube, mainly to ensure that the outer surface of the wool tube has no folding, crack and other defects, and to exclude the wool tube with folding, serious marking, pockmarked and other defects on the inner surface.

• tools.  The surface finish of the tools used in the production of general precision steel pipe is required to be above Ra0.4, the dimensional accuracy is above H3, and the hardness is required to be above HRC70.  At the same time, it is required that there should be no steel sticking on the top or die during the drawing process.

• annealing.  In the production of cold drawn pipe, the precision steel pipe needs to be equipped with bright annealing furnace without oxidation, and the quality of annealing affects the performance of the steel pipe and the removal of oxide sheet.

• pickling.  Precision steel pipe is easy to form "black slag" in the process of sulfuric acid pickling, which will form black spot on the surface in subsequent production.  To prevent the formation of black spots, 5-10g/ L NaCl was added to the acid pool.

•  lubrication.  Resin should be used as lubricant, this lubrication is obviously different from other, the steel pipe drawn out of the natural color of iron matrix, with high smoothness and beautiful appearance color

 How to select precision steel pipe manufacturers

 Lent thickness problem.  Not only to use calipers to measure the thickness, but also to measure the thickness of the back arc!  Because there will be wall reduction in the elbow push process, so back isolation is also very important!  Generally, 114x3.5 elbow will use 114X4 thick pipes to produce. If the manufacturer purchases thinner ones, the natural loss will be reduced a lot.

 Why choose us

•  Quality lends itself to something artistic, giving you a diamond-like sheen and a noble experience

•  A talented team of designers collaborate to orchestrate out-of-date designs that explore precision steel tubes in a unique minimalist style

•  Buy a high-quality product, professional team, high-quality professional service, and have many cooperating customers

•  The company's production factory, located in the suburbs, currently employs 200 people and covers an area of 100,000 square meters.  The company is located in the urban area of export sales and has 10 to 99 employees.

•  Cost a sample to buy something for free and we can build products according to customers' demands.Please select the manufacturer of Huidetong first.