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Address: DAXIN TOWN,ZHANGJIAGANG,JIANGSU P.R.CHINA
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Delivery Condition +N Precision Seamless Stee Standard EN10305-1 Steel Round Pipe
Delivery Condition
+N: After the final cold drawing operation the tubes are normalized in a controlled atmosphere.
Other Delivery Conditions
| +A: | After the final cold drawing process the tubes are annealed in a controlled atmosphere. |
| +C: | No heat treatment after the final cold drawig process. |
| +LC | After the final heat treatment there is a suitable drawing pass. |
| +SR | After the final cold drawing process there is a stress relieve heat treatment in a controlled atmosphere. |
Advantage
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.
Main Date
Material: E235, E355
OD: 4-120mm
WT: 0.5-15mm
Standard: EN10305-1
Preocess: Cold rolling, Cold drawn.
