Description
ST45 Steel Pipes Manufacturer: DIN 2391 Grade St45 Boiler Tube Specification and Equivalent
ST45 steel pipes, manufactured according to DIN 2391 standards, are widely used in various industries, including automotive, oil and gas, power generation, and engineering. Known for their high strength, durability, and precision, these pipes are essential for applications involving high pressure and temperature. ST45 steel pipes come in both seamless and welded forms and are used in boilers, heat exchangers, condensers, and other high-temperature equipment. Below is a comprehensive guide to ST45 pipes, including their specifications, types, dimensions, mechanical properties, and pricing.
Table of Contents
- ST45 Steel Pipes Specification Chart
- What Are the Types of DIN 2391 Grade St45 Boiler Tube?
- Length of DIN 2391 ST45 Tubes
- Chemical Composition of DIN 2391-2 Grade St 45 Tubes
- Mechanical Properties of DIN 2391 ST45 Carbon Steel Pipes
- ST45 Seamless Pipe Thickness Chart
- DIN 2391 St45 Seamless Precision Steel Tubes Pipe Size Chart
- ST45 DIN 2391 Carbon Steel Welded Tube Size
- Price List of DIN 2391 ST45 Pipes
- Features of Carbon Steel DIN 2391 ST45 Piping
- Tolerance of ST45 DIN 2391 Carbon Steel Seamless Pipes
- CS DIN 2391 ST45 Tubing Uses
- Check DIN 2391 ST45 Tubes Specifications, Composition, and Updated Price Online
1. ST45 Steel Pipes Specification Chart
| Property | Specification |
|---|---|
| Standard | DIN 2391 |
| Grade | ST45 |
| Size Range (Outer Diameter) | 4mm – 190mm |
| Wall Thickness Range | 0.5mm – 15mm |
| Length Range | Max 6000mm |
| Outer Dimensions | 4mm – 60mm |
| Material | Carbon Steel |
| Form | Seamless, Welded |
| Application | Boiler Tubes, Heat Exchangers, Condensers, Automotive |
ST45 steel pipes are available in a variety of sizes and wall thicknesses to suit different industrial applications, especially where high pressure and temperature resistance are required.
2. What Are the Types of DIN 2391 Grade St45 Boiler Tube?
DIN 2391 Grade ST45 Boiler Tubes are classified into several types based on their processing and intended use. Below are the most common types available:
| Type of ST45 Tube | Application |
|---|---|
| Cold Drawn Seamless Pipes | Known for high precision and smooth finish, used in tools and instruments. |
| Cold Drawn & Stress Relieved Pipes | Offers higher strength and resistance to stress cracking, used in high-stress environments. |
| Cold Drawn Annealed Pipes | Soft and flexible, suitable for applications that require ductility and formability. |
| Welded Tubes | Used for general purpose applications, where high precision is not critical. |
| Precision Seamless Tubes | Used in equipment requiring tight tolerances and high accuracy. |
These types are used in various high-performance applications such as boilers, heat exchangers, and pressure vessels due to their ability to withstand extreme temperature fluctuations.
3. Length of DIN 2391 ST45 Tubes
The DIN 2391 ST45 pipes come in standard lengths or can be cut to custom lengths as per project requirements. Common length specifications include:
| Type | Length |
|---|---|
| Standard Length | Up to 6000mm |
| Custom Cut Lengths | Based on project needs |
For specialized applications, custom lengths can be provided by manufacturers, helping reduce waste and improve installation efficiency.
4. Chemical Composition of DIN 2391-2 Grade St 45 Tubes
The chemical composition of ST45 steel pipes includes key elements that enhance the strength, ductility, and temperature resistance.
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.21 max |
| Silicon (Si) | 0.40 max |
| Manganese (Mn) | 0.40 – 0.80 |
| Phosphorus (P) | 0.045 max |
| Sulfur (S) | 0.045 max |
This composition provides the pipes with the ability to endure high-temperature environments while maintaining structural integrity.
5. Mechanical Properties of DIN 2391 ST45 Carbon Steel Pipes
| Mechanical Property | Value |
|---|---|
| Tensile Strength | 500 – 520 MPa |
| Yield Strength | Min 375 MPa |
| Elongation | 21% |
| Hardness (HB) | Max 180 HB |
These properties make ST45 pipes suitable for high-stress, high-temperature applications, ensuring durability and long service life.
6. ST45 Seamless Pipe Thickness Chart
| Outer Diameter (mm) | Wall Thickness (mm) |
|---|---|
| 4mm | 0.5mm |
| 50mm | 2.5mm |
| 100mm | 4.5mm |
ST45 seamless pipes come in various thicknesses, catering to different pressure and temperature requirements.
7. DIN 2391 St45 Seamless Precision Steel Tubes Pipe Size Chart
| Size (mm) | Tolerance (mm) |
|---|---|
| 4mm – 25mm | ± 0.12mm |
| 25mm – 60mm | ± 0.15mm |
| 60mm – 100mm | ± 0.20mm |
Precision tubes offer tight tolerances, making them ideal for use in sensitive applications such as instrumentation and high-precision machinery.
8. ST45 DIN 2391 Carbon Steel Welded Tube Size
| Diameter (mm) | Wall Thickness (mm) |
|---|---|
| 10mm | 1mm |
| 50mm | 2.5mm |
| 100mm | 4mm |
Welded tubes are used in less critical applications but provide cost-effectiveness and ease of manufacturing.
9. Price List of DIN 2391 ST45 Pipes
The price of ST45 pipes can vary based on size, length, and quantity. Below is a general price range for standard sizes:
| Pipe Type | Price (USD per meter) |
|---|---|
| Seamless Pipe | $3 – $8 |
| Welded Pipe | $2 – $5 |
For bulk orders, discounts may be available.
10. Features of Carbon Steel DIN 2391 ST45 Piping
- High Strength: Provides durability and reliability in demanding environments.
- Corrosion Resistance: Excellent resistance to wear and tear.
- High-Temperature Capability: Can withstand high-temperature environments.
- Dimensional Precision: Seamless pipes offer superior precision.
- Variety of Sizes and Thicknesses: Available in a wide range to suit various applications.
11. Tolerance of ST45 DIN 2391 Carbon Steel Seamless Pipes
| Diameter (mm) | Tolerance (mm) |
|---|---|
| ≤ 25mm | ± 0.10mm |
| 25mm – 50mm | ± 0.15mm |
12. CS DIN 2391 ST45 Tubing Uses
- Boiler Systems
- Heat Exchangers
- Power Plants
- Automotive Industry
- Refineries
- High-Temperature Piping Systems
13. Check DIN 2391 ST45 Tubes Specifications, Composition, and Updated Price Online
For updated pricing, specifications, and composition details, consult trusted suppliers and manufacturers. Many offer custom services, free samples, and detailed product listings online to help match your project needs.
