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  • Galvanized mild steel welded seam welding proces

    Galvanized mild steel welded seam welding proces

    Steel surface coating is designed to corrosion or decorative, or both. The seam welding, not only to obtain a sufficient joint strength,but also required to maintain the function of the coating. By the strength requirements, seam welding process and uncoated steel is similar, taking into account ...
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  • Exhaust pipe for auto

    Exhaust pipe for auto

    Automobile exhaust bellows, also known as automobile exhaust pipe hose, which is installed in the exhaust pipe of the engine exhaust manifold and muffler between the entire exhaust system was flexible coupling, which play a vibration and noise reduction, easy exhaust muffler system installation a...
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  • Dsaw welding

    Dsaw welding

    DSAW welding of principle: Submerged arc welding is the use of arc welding heat, And manual electrode arc welding is different: submerged arc welding wire is exposed above without paint, however, what usually see manual welding electrode above is with a very thick layer coatings, submerged arc fl...
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  • Difference between Hot Stretch Reducing Pipe and LSAW Steel Pipe

    Difference between Hot Stretch Reducing Pipe and LSAW Steel Pipe

    Difference between hot stretch reducing pipe and LSAW steel pipe are basically has the following two points: 1, Resulting in differnce on product quality due to the different processes, hot stretch reducing also carried out a process after high-frequency welding process that lsaw steel pipe can n...
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  • Density of Carbon Steel Pipe

    Density of Carbon Steel Pipe

    Density is one of the numerous properties of steel. It is calculated by dividing the mass by the volume. Steel comes in many different forms. Density is calculated by dividing the mass by the volume. The density of carbon steel is approximately 7.85 g/cm3 (0.284 lb/in3). There are many uses for s...
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  • Deoxidation iron requirements of seamless steel pipe

    Deoxidation iron requirements of seamless steel pipe

    Deoxidation iron requirements of seamless steel pipe: Size: In the case of continuous charging, the size of the direct reduced iron is very important parameter. Small in size (1 ~ 2mm) materials may quickly oxidized when contacting the slag, it may be pumped flue. Size is too large (> 30mm) at...
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  • Cooling rate of X80 pipeline steel welding heat affected zone

    Cooling rate of X80 pipeline steel welding heat affected zone

    For long-distance natural gas pipeline, using high grade pipeline steel is the main way to save costs. Canada’s pipeline industry practice proved that: compared with the X60, adoption of X70 pipeline wall thickness can be reduced 14%;Compared with X70, adoption of X80 pipeline wall thicknes...
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  • Cold rolled steel pipe

    Cold rolled steel pipe

    Cold rolled steel pipe is produced through cold-rolled process. Cold-rolling is at room temperature for a further rolled to a target thickness of the thin plate. And comparison of hot-rolled steel, cold rolled steel plate thickness is more accurate, and the surface is smooth, beautiful, but also ...
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  • Cold drawn seamless steel tube process

    Cold drawn seamless steel tube process

    Cold drawn seamless steel tubes process: round tube → heating → ​​perforation → Heading → ​​annealing → ​​pickling → ​​oiled (copper) → multi-pass cold drawn (cold rolled) → blank tube → heat treatment → straightening →hydrostatic testing (testing) → mark → storage. Cold drawn steel tube is with ...
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  • Characteristics of seamless casing and tubing

    Characteristics of seamless casing and tubing

    Characteristics of seamless casing and tubing Seamless oil casing, oil and gas exploration in the largest amount of a pipe, it relies on male and female buckle buckle which is screwed inside and outside, will a series deep underground steel pipe work. Oil well casing is the lifeline of its qualit...
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  • Difference between erw and dsaw pipes

    Difference between erw and dsaw pipes

    Process High-frequency straight seam welded pipe (ERW) production process is easy, a single production specifications, using resistance welding and high frequency welding process. Double submerged arc welded straight seam steel pipe(dsaw) production technology was used JCOE molding process, moldi...
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  • Common Structural Shapes

    Common Structural Shapes

    Structural steel is a category of steel used as a construction material for making structural steel shapes. A structural steel shape is a profile, formed with a specific cross section and following certain standards for chemical composition and mechanical properties. Structural steel shapes, size...
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