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DIN 1.2888 alloy steel tube
Material Properties
High Strength: The 1.2888 alloy steel tube possesses high strength and can withstand significant pressure and stress. It maintains stable performance under high-pressure and high-load conditions, making it suitable for applications requiring high strength, such as high-pressure pipeline systems.
Good Heat Resistance: This alloy steel tube exhibits excellent heat resistance, maintaining its mechanical properties and dimensional stability in high-temperature environments. It is ideal for use in pipelines of high-temperature equipment, such as superheaters and reheaters.
Excellent Wear Resistance: The addition of alloying elements gives the 1.2888 alloy steel tube strong wear resistance. It can withstand erosion caused by fluid scouring, abrasion, and particles, thereby extending the service life of the pipeline. It is suitable for transporting media containing solid particles or with abrasive characteristics.
Corrosion Resistance: The tube has a certain degree of corrosion resistance, allowing it to withstand exposure to various chemicals. It can operate reliably in corrosive environments, such as pipelines used in the chemical and petroleum industries.
Chemical Composition
| Element Serial Number | C | Si | Mn | P | S | Cr | V | Mo | W | Co | Ni | Nb | Fe |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min | 0.17 | 0.15 | 0.4 | 0 | 0 | 9 | 0.1 | 1.8 | 5 | 9.5 | 0 | 0.1 | - |
| max | 0.23 | 0.35 | 0.6 | 0.03 | 0.035 | 10 | 0.5 | 2.2 | 6 | 10.5 | 1 | 0.3 | - |
| Actual Value | 0.23 | 0.33 | 0.45 | 0.03 | 0.02 | 9.35 | 0.20 | 1.98 | 5.22 | 9.71 | 0.53 | 0.2 | 72.20 |
Mechanical Properties
| Mechanical Property | Value |
|---|---|
| Tensile Strength | 661 MPa - 2510 MPa |
| Yield Strength | ≥ 12 MPa |
| Elongation | ≥ 96% |
| Brinell Hardness | 243 HBS - 410 HBS |
| Rockwell Hardness | ~30 HRC |
Application Fields
Power Industry: Commonly used in high-pressure, high-temperature pipeline systems, such as boilers, superheaters, and reheaters in power and nuclear plants. It operates reliably in steam environments, ensuring the safe functioning of power equipment.
Mechanical Manufacturing: Suitable for manufacturing mechanical components like automobile drive shafts and petroleum drill pipes. Its high strength and wear resistance meet the demands of complex working conditions.
Chemical Industry: Used for transporting corrosive media and high-temperature fluids. Its corrosion and heat resistance ensure the reliability and stability of pipelines in chemical production.
Oil Exploitation: Applied in oil drilling and extraction as oil well pipes and pipelines, capable of withstanding high-pressure oil and gas transport and resisting underground environmental erosion.
Specification Dimensions
| Parameter | Range |
|---|---|
| Outer Diameter | φ4 mm - φ410 mm |
| Wall Thickness | 1 mm - 35 mm |
| Length | 10 mm - 12,000 mm |
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