Jiangsu Hongbao Group Co., Ltd.
| Supply Ability | 60000 MT per Year |
| Delivery Time | 30 Days |
| Packaging Details | Seaworthy Wooden box, customized Packing |
| 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 |
| Brand Name | Hongbao |
| Certification | TS16949, ISO9001, OHSAS18001 etc. |
| Place of Origin | China |
| Model Number | HBPST-1 |
View Detail Information
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Product Specification
| Supply Ability | 60000 MT per Year | Delivery Time | 30 Days |
| Packaging Details | Seaworthy Wooden box, customized Packing | 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 | Brand Name | Hongbao |
| Certification | TS16949, ISO9001, OHSAS18001 etc. | Place of Origin | China |
| Model Number | HBPST-1 | ||
| High Light | precision seamless pipe ，seamless steel tube | ||
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
Main Date
| Standard | EN10305-1 |
| Material | E235, E355 |
| Outer Diameter Range: | 4-120mm |
| Wall Thickness Range: | 0.5-15mm |
Delivery Condition
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.
Surface Treatment
Surface treatment
Oil-dip;
As customer's requirements.
The Weight Formula
(OD-WT)*WT*0.02466=KG/Meter
Company Details
Business Type:
Manufacturer
Year Established:
1958
Total Annual:
60000000-80000000
Employee Number:
700~1000
Ecer Certification：
Verified Supplier
Jiangsu Hongbao Group (Pipe) Co., Ltd. (Zhangjiagang Hongda Pipe Co., Ltd.) is a high-tech company in Jiangsu province. The company has a registered capital of RMB 89 million, covers an area of 130,000 square meters, employs 600 staff, and has annual sales of RMB 400 million. The company is speciali... Jiangsu Hongbao Group (Pipe) Co., Ltd. (Zhangjiagang Hongda Pipe Co., Ltd.) is a high-tech company in Jiangsu province. The company has a registered capital of RMB 89 million, covers an area of 130,000 square meters, employs 600 staff, and has annual sales of RMB 400 million. The company is speciali...
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