EN10305-1 E255 Cold Drawn Seamless Steel Pipe 16x1mm for Automotive Hydraulic Systems
Price:
Negotiable
MOQ:
2Tons
Delivery Time:
30days
Brand:
Joyruns
Product Description
EN10305-1 E255 Cold Drawn Seamless Precision Steel Pipe
High-precision cold drawn seamless steel pipe designed for automotive industry applications requiring tight tolerances, excellent surface finish, and superior mechanical properties.
Key Applications
- Hydraulic systems and components
- Motorcycle and automobile vibration dampers
- Precision machinery parts and automotive components
- Oil & gas pipeline pigging systems
Chemical Composition Specifications
| Standard | Steel Grade | Material Number | C | Si | Mn | P | S | Cr | Mo |
|---|---|---|---|---|---|---|---|---|---|
| EN10305-1 EN10305-4 |
E235 | 1.0308 | ≤ 0.17 | ≤ 0.35 | ≥ 0.04 | ≤ 0.025 | ≤ 0.025 | - | - |
| EN10305-1 EN10305-4 |
E255 | 1.0408 | ≤ 0.21 | ≤ 0.35 | ≥ 0.04 | ≤ 0.025 | ≤ 0.025 | - | - |
| EN10305-1 EN10305-4 |
E355 | 1.058 | ≤ 0.22 | ≤ 0.55 | ≤ 1.60 | ≤ 0.025 | ≤ 0.025 | - | - |
Mechanical Properties
| Steel Grade | Condition | Tensile Strength (MPa) Min | Yield Strength (MPa) Min | Elongation (%) Min |
|---|---|---|---|---|
| E235 | Cold Finished (Hard) | 480 | - | 6 |
| Cold Finished (Soft) | 420 | - | 10 | |
| Cold Finished & Stress-Relieved | 420 | 350 | 16 | |
| Annealed | 315 | - | 25 | |
| Normalized | 340-480 | 235 | 25 | |
| E255 | Cold Finished (Hard) | 580 | - | 5 |
| Cold Finished (Soft) | 520 | - | 8 | |
| Cold Finished & Stress-Relieved | 520 | 375 | 12 | |
| Annealed | 390 | - | 21 | |
| Normalized | 440-570 | 255 | 21 |
Final Supply Conditions
| Designation | Symbol | Description |
|---|---|---|
| Cold finished (hard) | BK | Tubes do not undergo heat treatment following the final cold forming and, thus, have a rather high resistance to deformation. |
| Cold finished (soft) | BKW | The final heat treatment is followed by cold drawing involving limited deformation. Appropriate further processing allows a certain degree of cold forming (e.g. bending, expanding). |
| Cold finished and stress-relieved | BKS | Heat treatment is applied following the last cold forming process. Subject to appropriate processing conditions, the increase in the residual stresses involved enables both forming and machining to a certain degree. |
| Annealed | GBK | The last cold forming process is followed by annealing in a controlled atmosphere. |
| Normalized | NBK | The last cold forming process is followed by annealing above the upper transformation point in a controlled atmosphere. |
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Company
Changzhou Joyruns Steel Tube CO.,LTD
Location
No.143 Qingyang North road,Tianning district. Changzhou
Contact Person
Lee