Germany’s Friedrich Kocks has received an order to supply a stretch reducing block and a rotating hot saw
The order was placed by China National Petroleum Corporation for its new welding tube plant at its subsidiary Baoji Petroleum Steel Pipe Co in Baoji, China.
The new plant will produce up to 300kt/y of welded tubes and the range of products includes tubes within a diameter range of 60.3 to 177.8mm with wall thicknesses of 4.83 to 13.72mm.
The three-roll stretch reducing block will roll all finished sizes out of only one mother size of 193.7mm diameter. The SRB will be designed for the use of up to 24 non-adjustable and adjustable stands with a nominal roll diameter of 360mm. The last three stands used in the block are adjustable finishing stands, the other stands are non-adjustable reducing stands.
The rotating hot saw type RHS 1000 allows the production of different tube lengths with tightest length tolerances. Commissioning of the new tube mill is planned for the second half of 2011.