Stainless welded Steel Pipe

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PRODUCT NAME: WELDED STAINLESS STEEL  PIPE

NameWelded Stainless Steel  Pipe
StandardASTM, GB, JIS, DIN, EN, AISI
Material GradeTP304 TP304L TP316 TP316L TP347 TP347H TP321 TP321H TP310 TP310S
TP410 TP410S TP403
S31803/S32205 S32750 S32760
Outer DiameterWelded Pipe: single slit(Φ8mm-Φ630mm); girth(Φ630mm-Φ3000mm),
ThicknessWelded Pipe: single slit(0.5mm-25mm); girth(3mm-30mm)
LengthCommonly 5.8 Meters or 6.0 Meters,  or as customers' request
ToleranceAccording to the Standard, +/-10% Commonly.
Surface180#, 320#, 400# Satin / Hairline, Bright Anneal, Pickle,400#, 500#, 600# or 800# Mirror finish
ApplicationPetrochemical industry, chemical fertilizer industry, oil refining industry, oil and gas industry, light industry and food industry, pulp and paper industry, energy and environmental industries.
TestFlaring test, Flattening test, Bending Test, Hydraulic Test, Eddy Current test

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Q:Ask experts, 304 stainless steel pipe why rust?
Stainless steel is not easy to rust and has a lot to do with the composition of stainless steel. In addition to iron, stainless steel contains chromium, nickel, aluminum, silicon and so on. General stainless steel chromium content is generally not less than 12%, high even up to 18%. Steel added elements such as chromium, can change the performance of the steel, such as the molecular structure of steel more uniform on the surface of the steel is more easily to form a layer of dense oxide protective film, thereby greatly improving the ability of corrosion-resistant stainless steel. Therefore, stainless steel can resist fire, water, acid, alkali and various solutions to its corrosion, not rust. The scientists found that the internal structure of the steel is more uniform, various components more closely linked to the corrosion of the more difficult the invasion, also attached to the surface with a layer of oxide film, like iron and steel to wear armor, was not naturally easy to rust.
Q:310 stainless steel resistance to high temperature?
American brand 310S, also known as 2520, used in high temperature furnace tube manufacturingMain features: austenitic stainless steel
Q:What are the differences in the properties of hot-rolled and cold-rolled stainless steel tubes?
From the current market, cold working processing method has been basically eliminated the hot working mode, this is caused by defects in thermal processing of stainless steel pipe: thermal processing of stainless steel tube, as in the case of heating, a molding, molding the mechanical properties of the stainless steel tube is relatively poor, so the tube doing mechanical processing will often cannot meet the needs of mechanical and physical properties.
Q:What's lined with stainless steel?
Stainless steel lining is a method of trenchless repair of underground pipes.
Q:Why can it stainless steel be put together with carbon steel tube?
Potential difference: the stainless steel pipe with a more positive potential and the carbon steel pipe with negative potential are even connected. The stainless steel tube is cathode, and the carbon steel tube is anode. The greater the potential difference between the two, the greater the galvanic corrosion tendency.
Q:Stainless steel pipes can not be less than the amount of chromium
General stainless steel chromium content is generally not less than 12%, high even up to 18%. Steel added elements such as chromium, can change the performance of the steel, such as the molecular structure of steel more uniform on the surface of the steel is more easily to form a layer of dense oxide protective film, thereby greatly improving the ability of corrosion-resistant stainless steel. Therefore, stainless steel can resist fire, water, acid, alkali and various solutions to its corrosion, not rust. The scientists found that the internal structure of the steel is more uniform, various components more closely linked to the corrosion of the more difficult the invasion, also attached to the surface with a layer of oxide film, like iron and steel to wear armor, was not naturally easy to rust. Why is stainless steel rust? When the stainless steel tube surface appear brown rust (point) when people are surprised: stainless steel does not rust, rust is stainless steel, steel may be a problem. In fact, this is a lack of understanding of stainless steel one-sided misconceptions. Stainless steel will rust under certain conditions. Stainless steel has the ability to resist atmospheric oxidation - that is, stainless steel, and also has the ability to corrode in medium containing acids, alkalis, and salts - that is, corrosion resistance. But its corrosion resistance is changed with the chemical composition, the mutual state, the condition of use and the type of environmental medium.
Q:304 stainless steel will rust it?
General stainless steel chromium content is generally not less than 12%, high even up to 18%. When chromium is added to the steel, the properties of the steel can be changed. For example, the molecular structure of the steel is more uniform, and the surface of the steel is easy to produce a layer of dense oxide protective film, which greatly improves the corrosion resistance of the stainless steel. Therefore, stainless steel can resist fire, water, acid, alkali and various solutions to its corrosion, not rust. The scientists found that the internal structure of the steel is more uniform, various components more closely linked to the corrosion of the more difficult the invasion, also attached to the surface with a layer of oxide film, like iron and steel to wear armor, was not naturally easy to rust.
Q:Where is the difference between seamles steel pipe and welded pipe?
Seamless steel tube: seamless steel pipe is made of steel ingot or solid tube blank through piercing, then made by hot rolling, cold rolling or cold casting. Specifications for seamless steel tubes are expressed in millimeters of outer diameter * wall thickness. Seamless steel pipe, hot-rolled and cold-rolled (DIAL) seamless steel pipe two categories.Hot rolled seamless steel tubes are divided into ordinary steel tubes, low and medium pressure boiler tubes, high pressure boiler tubes, alloy steel tubes, stainless steel pipes, oil cracking pipes, geological steel pipes and other steel pipes, etc..
Q:What wire is used for welding of 316 stainless steel line?
Inspection of assembly and tack welds;1, check the geometry and shape after assembly, whether it conforms to the provisions of the drawings. :2, assembly and assembly clearance is 1.5 - 2mm, using TIG welding, three point positioning welding,The welding seam position for the clock 3 points, 9 points and 12 points, the welding materials used should be the same as the welding materials, welding length is 10 15mm, welding requirements and guarantee no defect, the wrong side is less than 1.5 2mm.3, the group is not allowed to use strong assembly, the joint wall must be flush.4, when welding, there must be no air, slag, tungsten and crack.
Q:How can galvanized steel pipe to be connected with stainless steel pipe?
Welding methods are used to connect. Because galvanized pipe is in fact carbon steel pipe, so galvanized pipe and stainless steel pipe welding, in fact, carbon steel and stainless steel welding, welding of dissimilar materials. Attention should be paid to the zinc coating at the side of the groove before welding. It is OK to brush silver powder after welding.

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