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Address: Daqiao Developing Zone Haiyan,Zhejiang Province,China

Phone: 86-574-88086983

Contact name:Mr. Richard

Torich International Co.,Ltd

City & Province Ningbo Zhejiang

Product Details

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.