So far forever has already had many sucessful cases for drill pipe heat treatment line, such as e-75 drill pipe heat treatment line, x-95 drill pipe heat treatment line, g-105 drill pipe heat treatment line, s-135 drill pipe heat treatment line etc. Drill pipe heat treatment line features 1.Drill pipe length: 2-15m 2.Power: 100-8000kw 3.Drill pipe material: 45mn2, 36mn2v, 42mnm 4.Heating temperature:900-950 degree c. 5.Heating way: magnetic induction heating 6.Process: quenching, tempering Drill pipe heat treatment line advantages 1.Scrap is reduced or eliminated by the use of precise controls. 2.Distortion is minimized. 3.Use of costly alloy steels is reduced or eliminated. 4.Carburizing costs are eliminated. 5.Warm-up time is eliminated, since power is on only during the heating cycle. 6.Need for skilled labor is eliminated. 7.Man-hours are reduced with high production rates. 8.Working conditions are improved. 9.Maintenance costs are reduced. 10.Less floor space is needed.