Cold Drawn Carbon Steel Welded Tube E355 10-50mm OD 1.5-8mm Wall Thickness EN10305-2 Standard
Price:
800 - 9000 USD / ton
MOQ:
5T
Delivery Time:
60-75days
Brand:
HDT
Product Description
Production Method & Specifications
This cold drawn carbon steel welded tube is manufactured using electric resistance welding (ERW) with precise control over sizing, wall thickness, inside/outside diameter, weld integrity, and surface finish to achieve required mechanical properties.
Key Specifications
Material: E355 (Other options: E155, E195, E235, E275)
Outer Diameter: 10-50mm
Wall Thickness: 1.5-8mm
t/D Ratio: ≥ 0.2 (Standard: t/D=0.1)
Standard: EN10305-2
Process: Cold Drawn, Cold Rolling
Mechanical Properties
| Grade | Typical Specification | Yield Strength |
|---|---|---|
| E355 | Φ38×4.5 | 355-450 MPa |
Chemical Composition
| Steel Number | Quality Level | Thickness (mm) | C (%) ≤ | Si (%) ≤ | Mn (%) ≤ | P (%) ≤ | S (%) ≤ |
|---|---|---|---|---|---|---|---|
| E355 (Fe510) | C | ≤30 | 0.20 | 0.55 | 1.60 | 0.040 | 0.040 |
| C | >30 | 0.22 | 0.55 | 1.60 | 0.040 | 0.040 | |
| D | ≤30 | 0.20 | 0.55 | 1.60 | 0.035 | 0.035 | |
| D | >30 | 0.22 | 0.55 | 1.60 | 0.035 | 0.035 |
Delivery Conditions
- +C: No heat treatment after final cold drawing process
- +LC: Suitable drawing pass after final heat treatment
- +SR: Stress relieve heat treatment in controlled atmosphere after final cold drawing
- +A: Annealed in controlled atmosphere after final cold drawing
- +N: Normalized in controlled atmosphere after final cold drawing operation
Product Advantages
Compared to Seamless Cold Drawn Tubes
- Superior dimensional shape and geometry
- Enhanced surface quality and finish
- Tight eccentricity and wall thickness tolerances
- Improved safety performance
- Excellent low-temperature toughness
- 90% of cylinders in USA market use welded tubes
- More cost-effective for fixed lengths
Manufacturing Excellence
Our SG/76 Enhanced High-precision High Frequency Welding Tube Production Line ensures exceptional quality with small outer diameters (10-50mm), thick wall thicknesses (1.5-8mm), high t/D ratio (≥0.2), and superior dimensional precision.
Applications
These precision cold drawn welded tubes are ideal for hydraulic cylinders, pneumatic systems, machinery components, structural applications, and various industrial equipment requiring high-strength, dimensionally accurate steel tubing.
Similar Products
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
ZHANGJIAGANG HUA DONG ENERGY TECHNOLOGY CO.,LTD
Location
Rm. 1202, Buildiing A, Wanda Plaza, Zhangjiagang, Jiangsu, China
Contact Person
Yolanda Zou