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  • Control of 304 Stainless Steel Thick-walled Tube Grain Size

    Control of 304 Stainless Steel Thick-walled Tube Grain Size

    304 stainless steel thick-walled tube parts to control grain size during heat treatment is necessary, its quality heat-treated 304 stainless steel thick-walled tube has a very important impact. Here’s how to control the size of its grain size Method Summary as follows. (1) Choose a reasonab...
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  • 304 Stainless Steel Seamless Pipe Wear

    304 Stainless Steel Seamless Pipe Wear

    304 stainless steel seamless pipe wear phenomenon is very common, many reasons for this phenomenon have physico-chemical and mechanical aspects, mainly by the abrasive wear, adhesive wear (glued), fatigue wear (pitting) corrosion and wear. 304 stainless steel seamless pipe and wear almost all pro...
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  • How to Weld for Large-diameter Welded Steel Pipe at Low Temperatures

    How to Weld for Large-diameter Welded Steel Pipe at Low Temperatures

    Under cold conditions a low-carbon steel welding, the cooling rate of the welded joint, which has made cracking tendency to increase, especially in the first weld Heavy structures susceptible to cracking, it is necessary to take the following process steps: 1) Do not possible under conditions of ...
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  • Derusting Work Process of Thick Wall Straight Seam Welded Pipe

    Derusting Work Process of Thick Wall Straight Seam Welded Pipe

    To walled Longitudinal rust oil treatment, we must first understand the characteristics and type of anti-rust oil, as well as their respective roles. So when buying such products can not be thrown off balance, indirectly save time. 1. Quick-drying Its biggest advantage is that dry fast, hard shel...
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  • Microstructure and Properties of Hot-rolled Seamless Steel Pipe

    Microstructure and Properties of Hot-rolled Seamless Steel Pipe

    At present, domestic steel producers face enormous challenges seamless steel overcapacity, have to adjust product structure, eliminate backward production capacity and research and development of high-quality products. Experimental studies have shown: the implementation of control of the cooling ...
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  • Passivation Process of Spiral Pipe

    Passivation Process of Spiral Pipe

    Since the thicker parts formed on the surface, dense and complex components of the scale, such parts pickling descaling relatively complicated. Such removal of loose oxide scale according to a pickling step of removing ash hung performed. 1, Loose scale: 2, Pickling operation: after loose scale, ...
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