|Place of Origin:||China|
|Certification:||TS16949, ISO9001, OHSAS18001 etc.|
|Minimum Order Quantity:||1 ton|
|Packaging Details:||Seaworthy Wooden box, customized Packing|
|Delivery Time:||30 Days|
|Supply Ability:||60000 MT per Year|
|Shape:||Round||Application:||Automotive Part, Hydraulic System, High-precsion Machining. Etc.|
|Delivery Condition:||+C,+LC，+SR，+N，+A||Payment:||T/T; L/C|
|Sample:||Free Sample||Material:||E235, E355|
Delivery Condition NBK Precision Seamless Steel Tubes Standard EN10305-1 Steel Round Pipe
What is precision seamless steel tubes?
Precision seamless steel tube is a high precision steel tube after cold rolling or cold drawing
|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.
Other Delivery Condition aviliable:
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.
BKW(+LC): After the final heat treatment there is a suitable drawing pass.
BKS(+SR): 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.
As customer's requirements.
The Weight Formula