Precision seamless steel pipe and traditional electric furnace + forging or forging billet and rolling. Product appearance strip, square, forging. Then the turbine plant is further processed, but the process is more special, the metal utilization rate after processing is about 30%. After the extrusion mode of production, it will have the following advantages:
1. Precision hot-rolled seamless steel tube is in the best stress state to reduce internal defects.
2. Easy to realize cross-sectional shape diversification, adapt to varieties, small batch production.
3. Hot-rolled seamless pipes with uniform properties.


The main methods of extrusion process are: electric furnace + electric furnace > forging or rolling-induction heating > extrusion-annealing.


The difference between extrusion forging and rolling is that:
1. The heating temperature of precision seamless extrusion is 30-60 C higher than that of forging.
2. Deformation and high speed (steel bar, only 2-4s).
3. Multi-step, high consumption