Production Process: Cold rolling by Cold pilger machine and Cold rolling machine
Size: 20-350mm
1. Standard: EN10305-2 Cold Drawn Precision Seamless Steel Pipes
2. Steel Grade: E155,E195,E235,E275,E355, other materials upon agreement with customers.
3. Production method: Cold drawn on the weled steel tubes, to reach high accuracy on the OD and WT tolerance
4.Size range: O.D.:20-350mm W.T.:1-50mm L:max12000mm
5. Packing: In Hexagonal Bundles, wth anti-rust oil protection, with seaworthy packing
6.Deliver condition:
1). +C No heat treatment after the final cold drawig process
2). +LC After the final heat treatment there is a suitable drawing pass
3). +SR After the final cold drawing process there is a stress relieve heat treatment in a controlled atmosphere
4). +A After the final cold drawing process the tubes are annealed in a controlled atmosphere
5). +N After the final cold drawing operation the tubes are normalized in a controlled atmosphere
Chamfering and cutting could be done if need
Please specifiy the final heat treatment when sending the enquiry.
