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DIN2391 Seamless Steel Tube Black Phosphated With Good Mechanical Performance
| Place of Origin | Jiangsu, China |
|---|---|
| Brand Name | Hongbao |
| Certification | TS16949,DNV,PED,ISO,TUV,LR |
| Model Number | HBPST-1 |
| Minimum Order Quantity | 1 ton |
| Price | Negotiable |
| Packaging Details | seaworthy plywooden case packing. |
| Delivery Time | Within 50 days if production |
| Supply Ability | 30000MT per year |
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xProduct Details
| Material | E235,E355,26MnB5,34MnB5 | Certificate | TS16949,DNV,PED,ISO,TUV,LR |
|---|---|---|---|
| Origin | Jiangsu,China | OD | 6-120mm |
| Thickness | 0.5-15mm | Shape | Round |
| Type | Welded Or Seamless | Processing | Cold Drawn, Cold Rolled |
| High Light | precision steel pipe,erw precision tubes |
||
Product Description
DIN2391 Cold Drawn Precision Steel Tube Black Phosphated Welded Hydraulic Steel Tubes
Description:
The tubes can be produced in the following delivery conditions:
GBK (+A) Annealed.
After the final cold forming process the tubes are annealed in a controlled atmosphere.
NBK (+N) Normalized. (Mainly focus on)
After the final cold forming process the tubes are annealed above the upper transformation point.
BK (+C) Cold finished/hard (cold finished as drawn).
No heat treatment after the last cold forming process.
BKW (+LC) Cold finished/soft (lightly cold worked)
After the last heat treatment there is a light finishing pass (cold drawing).
BKS (+SR) Cold finished/stress relieve annealed.
After the final cold forming process the tubes are stress relieve annealed.
| Process | Diameter | Length | Precision | Inner Hole Roughness |
| Cold Rolled | 30-100mm | ≤12 m | H8-H10 | 0.4-1.6 |
| Cold Draw | 30-250mm | ≤12 m | H8-H10 | 0.8-1.6 |
| Honing | 40-500mm | ≤12 m | H8-H9 | 0.4-0.8 |
| Rolling | 40-400mm | ≤7 m | H8 | 0.4 |
| Inner Diameter | H8 | H9 | H10 |
Steel Tube are manufactured according to technical specification of EN10305-2 Cold Drawn Welded
Precision Steel Tubes DOM tubing, with steel grade of E155,E195,E235,E275,E355 and delivery
conditions of +C +LC +SR +A +N
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