316 round stainless steel bar price for china

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Q:What are the differences in the properties of hot-rolled and cold-rolled stainless steel tubes?
Stainless steel tube with hot and cold points, hot rolling is made by stainless steel tube billet heated to red state, through processing a mold, which is cold-rolled stainless steel pipe billet collocation through different mould at room temperature, finally by drawing rolling method, stainless steel tube working together the size of the need to.
Q:Can magnets attract stainless steel tubes?
There are two kinds of stainless steel, one is made of nickel as the main component of stainless steel, one is chromium as the main component of stainless steel. The magnet can absorb chromium containing stainless steel and can not suck nickel containing stainless steel.
Q:Advantages and disadvantages of PPR lined stainless steel pipe and PPR aluminium plastic pipe
1 、 aluminum plastic composite pipe including lap welding aluminum plastic composite pipe and butt welding aluminum plastic composite pipe, butt welding, the thickness of the aluminum strip and welding process requirements are relatively high.2, the existence of lap welding aluminum layer, increased the modulus of the pipe, and the wall thickness is more thick, installation of pipe is more difficult to bend, need to use more pipe fittings for connection, therefore, field construction is more difficult than PP-R. And the plastic aluminum steady state composite tube must first strip off the outer protective layer, the adhesive layer and the aluminum layer before welding, and then can connect. If the adhesive layer is not clean, it will lead to welding unreliable and leak point.
Q:Is galvanized steel pipe stainless steel pipe?
Galvanized steel pipe is a kind of welded steel pipe, and its essence is hot-dip galvanized coating on the inner and outer surface of welded steel pipe. Hope to be of help to you.
Q:What's the difference between the stainless steel pipe welded pipe and seamless pipe?
Welding performance: chemical composition of seamed pipe and seamless pipe are different. The production of seamless steel components only meets the basic requirements of astm. The production of seamed tube steel containing suitable for chemical composition of welding. For example, the mixing of silicon, sulfur, manganese, oxygen, and a certain proportion of elements such as the triangle ferrite can produce a welding flux which is easy to transfer heat during welding, so as to make the whole weld be welded well. The lack of steel pipe above the chemical components, such as seamless tube, can produce all kinds of unstable factors in the process of welding, welding and welding penetration is not easy.
Q:Stainless steel pipe drilling?
General requirements for processing stainless steel workpiece hole smooth, less burr, white technology generally choose high-quality grinding drill, on the market are mostly black rolling process, the main difference between full grinding and rolling process is drilling with the drill chuck supporting the overall use of small amplitude and hole grinding, less burr, the accuracy is high especially, when batch processing efficiency.
Q:Stainless steel pipe pickling ratio
Usage: apply proper amount of this product onto the surface of stainless steel to be processed, the thickness of 1~2 mm, 5-30 minutes or longer (by dirt, sheet materials and processing requirements), process the best brush a few times, the surface oxide skin, rust completely clean, with water (lime water or salt water better) rinse, avoid rust.
Q:Stainless steel seamless steel tube, ordinary seamless steel pipe, which is good?
The general stainless steel tube is wear-resistant, high temperature resistance, corrosion resistance. Plain carbon steel seamless tubes resist pressure better than stainless steel.
Q:Under what circumstances can the stainless steel pipe be welded by argon arc, and under what conditions can the arc welding be used?
Argon arc welding is a kind of welding technology using argon gas as protective gas. Also called argon gas shielded welding. That is, argon shielded gas is applied around the arc welding, and the air is separated from the welding zone to prevent the oxidation of the welding zone. Argon arc welding technology is based on the principle of arc welding on using argon protection for metal welding, the welding material in high current to be welded on the substrate is melted into liquid form of molten pool, the metal to be welded and welding welding technology to achieve a metallurgical combination, due to the high temperature melting on argon welding continuous feeding in the welding material can not contact with oxygen in the air, thereby preventing the material oxidation, therefore can welding stainless steel, iron metal hardware.
Q:316 stainless steel pipe wall mirror polishing, the smaller the roughness, the better.
Sanitary grade stainless steel tube and stainless steel sanitary pipe: phi 6 - 219mm * 0.5 - 5mm. The product is cold rolled by three roll tube mill and is polished inside and outside by degreasing and flat drawing. It is a seamless sanitary stainless steel pipe and stainless steel sanitary pipe finished product. The outer surface of the product is polished, the diameter and wall thickness tolerance of less than 0.02-0.05mm, the inner wall of the pipe roughness Ra is less than or equal to 0.6 m after Ra or 0.4-0.25 inner wall polishing m, sanitary stainless steel pipe and stainless steel pipe health features: inside and outside wall of polished, bright surface, very smooth, high dimensional accuracy, delivery status generally hard (micro magnetic), and widely used.

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