CDW Drawn Over Mandrel Steel Tube
Material, Specification, Key Features
CDW (Cold Drawn Welded) Drawn Over Mandrel Steel Tube is a type of steel tube known for its precision dimensions, smooth surface finish, and uniform mechanical properties. It is manufactured through a process where the tube is drawn through a die and over a mandrel, resulting in improved dimensional accuracy and enhanced mechanical properties.
Key Features:
Precision dimensions
Smooth surface finish
Uniform mechanical properties
High strength
Good machinability
Excellent weldability
Chemical Composition
The chemical composition of CDW Drawn Over Mandrel Steel Tube typically includes the following elements:
| Element | Composition (%) |
| Carbon (C) | 0.18 - 0.23 |
| Manganese (Mn) | 0.30 - 0.60 |
| Silicon (Si) | 0.15 - 0.35 |
| Phosphorus (P) | 0.040 (max) |
| Sulfur (S) | 0.040 (max) |
Mechanical Properties
The mechanical properties of CDW Drawn Over Mandrel Steel Tube are as follows:
| Property | Value |
| Tensile Strength | 400 - 600 MPa |
| Yield Strength | 320 - 420 MPa |
| Elongation | 15 - 25% |
| Hardness (HV) | 130 - 180 HV |
Physical Properties
The physical properties of CDW Drawn Over Mandrel Steel Tube are as follows:
| Property | Value |
| Density | 7.85 g/cm³ |
| Thermal Conductivity | 45 W/(m·K) |
| Specific Heat Capacity | 0.50 J/g·K |
Process Performance
CDW Drawn Over Mandrel Steel Tube offers excellent process performance, making it suitable for various fabrication techniques such as welding, bending, and machining. It maintains its dimensional stability and mechanical properties throughout these processes, ensuring consistent quality in the finished product.
Steel Grade
CDW Drawn Over Mandrel Steel Tube is typically available in various steel grades, with common grades including:
ST52.3
E355
SAE 1020
Application
Due to its precision dimensions, uniform mechanical properties, and excellent process performance, CDW Drawn Over Mandrel Steel Tube finds applications in various industries, including:
Automotive
Machinery
Construction
Agriculture
Aerospace
Its versatility and reliability make it a preferred choice for structural components, hydraulic cylinders, machine parts, and other critical applications where dimensional accuracy and mechanical strength are paramount.
Possible Alternative Grades
While CDW Drawn Over Mandrel Steel Tube offers excellent properties, there are alternative grades available depending on specific application requirements. Some possible alternative grades include:
DOM Steel Tube (Drawn Over Mandrel)
ERW (Electric Resistance Welded) Steel Tube
Seamless Steel Tube
Each of these alternatives may offer distinct advantages in terms of cost, availability, or specific performance characteristics, and the choice among them depends on the particular needs of the application.
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