Basic definition of 13CrMo44:
• Standard source: German DIN 17175 standard (partially superseded by EN standards, but still widely used)
• Chinese name: 13CrMo44 alloy steel pipe (13 chromium-molybdenum 44)
• Steel type: Pearlitic heat-resistant alloy steel
• Primary alloying elements: Chromium (Cr) and molybdenum (Mo)
• Operating temperature range: ≤ 580°C (for long-term stable operation)
Main Characteristics:
Characteristic: High-temperature strength
Description: Maintains good strength at around 550°C.
Characteristic: Good oxidation resistance
Description: Contains chromium, which forms a dense oxide film at high temperatures.
Characteristic: Excellent creep resistance
Description: Contains molybdenum, significantly enhancing endurance strength and creep resistance at high temperatures.
Characteristic: Good weldability
Description: Can be welded using manual welding, submerged arc welding, and gas shielded welding, but heat treatment needs to be controlled.
Characteristic: Long service life
Description: Can operate for a long time under proper usage conditions with low maintenance costs.
Chemical Components
Mechanical Properties
Tensile Requirement
Applications:
Power Industry: Boiler superheaters, reheaters, economizers, and high-temperature steam pipelines.
Petrochemical Industry: High-temperature heat exchangers, cracking furnaces, and hot oil pipelines.
Pressure Vessels: Tube seats, heat exchanger tubes, and flanged pipelines.
Thermal Energy Systems: High-temperature heat collector systems and steam output systems.
Testing of 13crmo44 Seamless Alloy Steel Tubes
- Tensile test
- Notch impact/bending test
- Ring test
- Non-destructive test
- Visual inspection of tube surface
- Gauging
- Leakage test
- Grade identification test
- Hot tensile test
Packaging and shipping
