Q:How can the inner walls of stainless steel tubes be polished?
Electropolishing is thrown to the workpiece as anode, insoluble metal poles at the same time as the cathode, immersed into electrolytic cell, with the direct current produced anodic dissolution selectively, so as to achieve the surface brightness increasing effect. Specific can be used to search "what is electrolytic polishing" can understand!
Q:How much more expensive is 304 stainless steel than 201?
304 now it's about 20000 yuan a ton, and 201 is about 15000 tons.
Q:Stainless steel pipe is mainly used in what areas?
The stainless steel pipe is a kind of economic section steel, is one of the most important products in the steel industry, which can be widely used in industrial and living decoration on the market, a lot of people for the production of staircase handrails, railings, window, furniture etc.. There are two kinds of materials, 201 and 304.
Q:Why is the outer diameter of 1 inch galvanized pipe 33.7? And the outer diameter of one inch stainless steel pipe is 25.4
Some 25.4 such outer threads, is the imperial Whitworth Thread and American Standard unified thread, single head wire estimate.
Q:What's the difference between stainless steel 302 or 304?
Plate type heat exchanger, corrugated pipe, household appliances (1, 2 kinds of tableware, kitchen cabinet, indoor pipeline, water heater, boiler, bath), auto parts (windshield wiper, muffler, mold), medical appliances, building materials, chemical, food industry, agriculture, marine parts, millet mobile phone etc.. 304 stainless steel is a nationally recognized food grade stainless steel.
Q:What wire is used for welding of 316 stainless steel line?
Quality inspection of welding groove preparation, according to requirements of groove size, accuracy and surface quality stipulated in construction instruction and welding process instruction, groove quality including flatness, perpendicularity and cleanness.1, check the groove processing size (height, angle, edge and blunt edge, etc.) and accuracy isDoes it meet the relevant technical standards?.2, check the groove surface roughness and surface defects (cutting gap, crack,Layer and slag) if beyond the scope of the standard should be allowed to defect, repair treatment, such as surface roughness does not reach the standard, can use abrasive grinding.3. Check the surface cleaning quality of the groove. At least 200mm of the groove face and its sidesShould be clean within the scope, without burr, slag, rust, oil, film and paint and other harmful foreign bodies.4 、 nondestructive inspection of groove surface. For welding process documentation, specify the slopeMaterials such as CY-M steel, Fe-CY-N, high temperature steel and alloy steel shall be examined on the surface for nondestructive testing (such as coloring, etc.), and the defects such as cracks shall be removed.
Q:What are the specifications of stainless steel decorative pipes?
The steel pipe seamless steel pipe and welded steel pipe (seamed pipe) two categories. It can be divided into round tube and special-shaped tube according to the sectional shape. The round steel tube is widely used, but there are some special-shaped steel tubes such as square, rectangle, semicircle, hexagon, equilateral triangle and octagon.
Q:What's the difference between cold drawn steel tube and hot rolled steel tube?
Cold drawn steel tube is a kind of precision cold drawn seamless pipe used for mechanical structure and hydraulic equipment with high dimensional accuracy and good surface finish. The use of precision seamless tube manufacturing machinery structure or hydraulic equipment, etc., can greatly save the working hours of mechanical processing, improve material utilization, at the same time help improve product quality.
Q:Disadvantages of stainless steel tubes
Galvanized iron pipe is the most widely used material at present. Because of the corrosion of galvanized iron pipe, the content of heavy metals in water is too high, which affects the health of human body.
Q:Stainless steel why are rust?
In polluted air (such as atmosphere containing large amounts of sulfides, oxides of carbon and nitrogen oxides), condensate is formed when sulfuric acid, nitric acid, and acetic acid are subjected to condensation, resulting in chemical corrosion.