Stainless Steel Precision Coil Tube From GNEE STEEL-Largest production capacity and longest single tube length in China
Stainless Steel Precision Coil Tube is mainly used in applications such as coiled heat exchangers, heat tracing tubes, marine umbilical cables, hydraulic instruments for ships, and hydrogen refueling stations.
Main Type of Seamless Steel Tube For Spiral Wounded Heat Exchanger
Stainless steel series: 304/L/H/LN,316/L/H/LN/Ti,321/H
Carbon alloy steel series: 10,Q345E,210C,20G,15CrMoG,T11
Maximum length of coil tubes of diferent specifications(The max.weight of single piece can reach 150kgs)
OD:Ф27-38mm 100mm
OD:Ф16-25mm 500mm
OD:Ф3-14mm 1000mm
Our company adopts advanced vacuum bright annealing process, which is in a full closed vacuum solution furnace, so that the surface of the steel tube will not contact with oxygen during annealing and will not exist oxide scale, The intemal and external surfaces of the steel tube will remain the onginal metal surface, bright and clean. In the bright annealing process,the temperature in the furnace is controlled accuratety, and the temperature in the furnace is nornally controlled to fluctuate ±5℃, make sure the steel tube is evenly heated and fully insulated dunng annealing.
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