Stainless steel production process and equipment introduction

Manufacturing of Stainless Steel Tubing

Tube Mill Process

This process has operations such as:

Rolling and Welding

With rolling and welding, stainless steel coils are continuously roll formed on a tube mill. The strip edges are welded together using welding techniques such as TIG, high frequency, and laser. Depending on the welding method, the strip edges may have to be prepared to yield a high quality weld. As part of the finishing process, weld beads on the ID and OD of the tube are removed with scarfing, sanding, bead rolling or other means depending on the final application and specification of how the tube is to be made.

Cleaning and Heating

The rolled stainless steel tubes produced in this manner are trimmed to the desired lengths based on industry demand. The stainless pipes and tubes are then cleaned to remove the dirt. These rolled tubes are then heat treated to reduce any stress that may have occurred during the welding and forming procedures. The continuously rolling hearth furnace is used for heat treatment. Temperature controllers and recorders are installed in the furnace. Following the heat treatment procedure, the stainless steel tubing and pipes are straightened and pickled to remove surface scales.

Cold Drawing

In some circumstances, the appropriate size may not be available directly from the mill. The cold operation procedure can then be employed to get the appropriate size. The tubes or pipes are covered with soap and oxalic solution during the cold drawing process. This solution provides lubrication, reducing friction during the cold drawing process. The tube or pipe is dragged over the bench utilizing Die plugs during the cold drawing operation.

Finishing Process

Next, the drawn-out tube or stainless steel pipe is cleaned, heat treated, pickled, and straightened. The final pipes or tubes are marked using computerized ink jet marking equipment. Before being sent on to stainless steel pipe exporters, the pipe or tube is labeled with the grade of material, heat number, size, and the stamp of a third party inspection. The resulting stainless tubes or pipes will be subjected to rigorous testing and quality control. This is followed by appropriate packing and shipping. There are several stainless steel pipe applications for which these pipes and tubes are employed.

Equipment introduction

Welding pipe equipment:used for welding steel bars, all using imported welding machines and independently developed automatic argon arc welding tracking systems. Advanced welding technology (magnetic control) ensures the stability,smoothness, and delicacy of internal and external weld quality, and improves welding efficiency by 10-30%

Online and offline eddy current testing equipment to ensure the quality of each welded pipe、chamfering

Laser cutting:Laser cutting can achieve high-precision and multi specification cutting, with smooth and clean cutting surfaces.CNC laser cutting has no burrs, and raw material consumption is not high. It can complete large-scale production, greatly reducing freight logistics time.

Laser cutting workshop:Adopting specialized equipment, multiple devices operate efficiently to ensure delivery time

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Stainless steel pipes have become an indispensable part of all walks of life because of their excellent performance and versatility. For more than four years, JingChangSheng has been supplying high quality stainless steel to various industries around the world. JingChangSheng has become synonymous with precision, reliability and innovation. To view our products or talk to our experts, please contact JingChangSheng today.