1. Key Properties:
Chromium-Molybdenum Alloy Steel: 13CrMo44 is a chromium-molybdenum alloy steel designed for high-temperature and high-pressure applications. The alloy is known for its excellent mechanical properties and resistance to thermal fatigue.
High-Temperature Strength: This material provides excellent resistance to oxidation and can maintain its strength at elevated temperatures, making it ideal for use in power plants and other industrial applications with high heat exposure.
Good Weldability: 13CrMo44 exhibits good weldability, though welding should be performed with preheating and post-weld heat treatment to avoid cracking and ensure the durability of the joints.
Creep and Fatigue Resistance: 13CrMo44 is designed to perform well under long-term exposure to high-pressure and high-temperature conditions, offering superior resistance to creep and thermal fatigue.
Good Corrosion Resistance: The material provides good resistance to corrosion in various environments, particularly in steam and chemical process applications.
2. Applications/Industries:
Power Generation: 13CrMo44 is widely used in the power generation industry, including in components like superheaters, reheaters, steam pipelines, and boiler tubes, where the material must withstand high temperatures and pressures.
Petrochemical: The material is used for piping systems, pressure vessels, and heat exchangers in the petrochemical industry, especially in areas with high thermal and mechanical stress.
Oil & Gas: Used for critical piping and equipment in oil and gas applications that operate under extreme temperature and pressure conditions.
Chemical Processing: 13CrMo44 is employed in chemical plants for high-temperature process equipment, such as reactors and heat exchangers, where the material's resistance to thermal fatigue and corrosion is crucial.
Heavy Machinery: This steel is used in the manufacture of heavy machinery parts such as turbines, valves, and other components subjected to high heat and pressure.
3. Certifications/Standards:
DIN 17175: 13CrMo44 is specified in the DIN 17175 standard, which applies to seamless steel pipes for high-temperature service, ensuring it meets the requirements for power plant and industrial applications.
ISO 9001: 13CrMo44 is produced in compliance with ISO 9001 standards, ensuring high-quality production and manufacturing processes.
4. Chemical Composition:
Carbon (C): 0.12% – 0.18%
Manganese (Mn): 0.40% – 0.70%
Chromium (Cr): 1.00% – 1.10%
Molybdenum (Mo): 0.40% – 0.60%
Silicon (Si): 0.30% – 0.60%
Phosphorus (P): 0.025% max
Sulfur (S): 0.010% max
Iron (Fe): Balance
5. Technical Specifications:
Yield Strength:
13CrMo44: 450–600 MPa (depending on heat treatment and thickness)
Tensile Strength:
13CrMo44: 600–750 MPa
Hardness:
13CrMo44: Typically ranges between 180–220 HB (Brinell hardness) depending on heat treatment.