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Steel Tube Standards

According to producing craft, there are different steel tube standards, also different country and different application, there are more standars for supplier, in order to produce suitable pipes for clients.

Structure seamless steel tube (GB/T8162-2008).Mainly used for the general structure and the mechanical structure.It represents material (steel grade) : carbon steel, 20, 45 # steel;Alloy steel Q345, 20 crmo 20 cr, cr, 40, 30-35 crmo, 42 crmo, etc                                                               

Transmission fluid with seamless steel tube (GBT8163-2008).Mainly used in engineering and large equipment in pipes conveying fluid.On behalf of the material (brand) of 20, Q345, etc           

Cold drawn or cold rolled precision seamless steel tube (GB3639-83) is used in the mechanical structure, hydraulic equipment of high dimensional accuracy and surface finish good cold drawn or cold rolled precision seamless steel tube.Choose precision seamless steel tube manufacturing mechanical structure or hydraulic equipment, etc., can greatly save the machining time, improve material utilization, at the same time to improve the quality of the product. Instead of EN10305-1, DIN2391 etc


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