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Oil Treated High Precision Seamless Steel Tubes 4mm Small Outer Diameters
|Shape||Round||Application||Automotive Part, Hydraulic System, High-precsion Machining. Etc.|
|Payment||T/T; L/C||Sample||Free Sample|
|Port||Shanghai Port||Trade Term||FOB, EXW, CIF|
precision seamless pipe,
seamless round tubes
Delivery Condition +LC Precision Seamless Steel Standard EN10305-1 Steel Round Pipe
Precision seamless steel tube is a high precision steel tube after cold rolling or cold drawing.
|Standard||EN10305-1; DIN2391; DIN2445|
|Material||E235, E355, St37.4, St52.4|
|Outer Diameter Range:||4-120mm|
|Wall Thickness Range:||0.5-15mm|
|NBK(+N)||After the final cold drawing operation the tubes are normalized in a controlled atmosphere.|
After the final heat treatment there is a suitable drawing pass.
|GBK(+A)||After the final cold drawing process the tubes are annealed in a controlled atmosphere.|
|BK(+C||No heat treatment after the final cold drawig process.|
After the final cold drawing process there is a stress relieve heat treatment in a controlled atmosphere.
1. Smaller outer diameters;
2. High precision can be done in small batch production;
3. Cold drawing finished products with high precision and good surface quality.
4. The transverse area of the steel tube is more complicated;
5. Steel pipe performance is superior, metal is more dense.