Suzhou Senbo Machinery Co., Ltd
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6" Carbon Alloy Steel Hot Rolled Seamless Pipe Rolling Mill

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Suzhou Senbo Machinery Co., Ltd

No. 19, East Renmin Road, Suzhou Zhangjiagang, Jiangsu, China Zhangjiagang Jiangsu
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  • Place of Origin: China
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I. The formation of hot rolled seamless steel pipe


Hot-rolled seamless steel pipe is a steel pipe in which a solid tube billet or steel ingot is pierced and rolled into a hollow section. The basic process is piercing and rolling.


II. Hot rolled seamless steel pipe manufacturing process 


StepDescriptionRelated equipmentFunction
S1Billet preparingCutting machine, centering machine etc.cut billet into required length, drill center hole
S2Billet heatingSloping furnace, waling beam furnace etc.heat billet into required temperature
S3PiercingTwo-roll skew rolling piercing millmake hollow tube
S4ElongatingElongator, pipe mill, plug millreduce wall thickness of hollow tube
S5SizingSizing mill, sizing standreduce outer diameter of finished tube
S6Finishing, testing, packingStraightening machine, flaw detection equipment, packing machinemake finished tube straighter, inspect the quality of tubes, cut two ends of tubes, packing and storing.


Note: hot rolling line isn't standard production line. It should be designed in according to size, use, excuted standard etc. of finished tubes to achieve the highest cost performance. When you want to produce hot rolled seamless pipe smaller than 50mm, we suggest you use piercing mill + sizing mill. When you wan to produce thinner wall thickness, plug mill can be used to replace elongator etc. 


If you have other questions, do not hesitate to write emali or send message to us, we will try our best to help you!


III. Our main machines and work range

NameWork range
Hot piercer28mm ~ 340mm
Elongator50mm ~ 219mm
Sizing mill32mm ~ 219mm
Straightening machine6mm ~ 340mm


Note: Above parameters are the working range of our equipment. Customer can choose them seperately in according to the detail requirement. If you want complete online machines, please send us material, outer diameter, wall thickness and length, we will special design for you.

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