1. Key Properties:
High Strength: 10CrMo9-10 (1.7380) is a chromium-molybdenum alloy steel, offering high tensile strength and excellent resistance to high-temperature conditions.
Good Heat Resistance: This material is particularly well-suited for high-temperature applications, offering exceptional resistance to thermal fatigue and creep, making it ideal for pressure vessels and piping in industrial settings.
Good Weldability: The steel has good weldability, although preheating and post-weld heat treatment may be required for thicker sections to ensure optimal mechanical properties and prevent cracking.
Corrosion Resistance: 10CrMo9-10 offers good resistance to oxidation and corrosion at elevated temperatures, making it suitable for use in power plants, steam boilers, and petrochemical applications.
Toughness and Durability: The material exhibits good toughness, ensuring durability in high-pressure environments, and is resistant to both mechanical wear and thermal stresses.
2. Applications/Industries:
Power Generation: 10CrMo9-10 is widely used in the power generation industry, especially in steam boilers, high-pressure piping, and heat exchangers, where resistance to high temperatures and pressure is required.
Chemical Processing: Used in chemical processing industries for reactors, pressure vessels, and piping that must withstand corrosive substances and high-temperature environments.
Petrochemical: Commonly found in refinery applications, including reactors and steam pipelines, where the material’s resistance to heat and corrosion is crucial.
Oil & Gas: Employed in high-pressure systems like pipelines and drilling equipment, particularly in environments subject to high temperatures.
Heavy Engineering: Suitable for pressure vessels and equipment that require strength at elevated temperatures, such as in the manufacturing of turbines, superheaters, and steam drums.
3. Certifications/Standards:
DIN 17175: 10CrMo9-10 is commonly compliant with the DIN 17175 standard for seamless steel tubes used for high-pressure and high-temperature services.
EN 10216-2: The steel grade is also compliant with EN 10216-2 for seamless steel tubes used in pressure applications at elevated temperatures.
ISO 9001: Quality management system certification.
4. Chemical Composition:
Carbon (C): 0.08% – 0.15%
Manganese (Mn): 0.40% – 0.60%
Chromium (Cr): 0.90% – 1.10%
Molybdenum (Mo): 0.40% – 0.60%
Silicon (Si): 0.20% – 0.40%
Phosphorus (P): 0.025% max
Sulfur (S): 0.010% max
Iron (Fe): Balance
5. Technical Specifications:
Yield Strength:
10CrMo9-10: 280–450 MPa (depending on heat treatment and dimensions)
Tensile Strength:
10CrMo9-10: 550–720 MPa
Hardness:
10CrMo9-10: Approximately 170–210 HB (Brinell hardness)