G-X5CrNiMoNb1810 Steel Grade: A High-Performing Material for Various Industries

Specification: G-X5CrNiMoNb1810 Steel Grade

G-X5CrNiMoNb1810 is a high-performing material that finds application in various industries due to its excellent mechanical properties and chemical composition. This steel grade belongs to the group of stainless steels and is specifically designed for high temperature and corrosive environments.

Mechanical Properties:

1. Tensile Strength: The G-X5CrNiMoNb1810 steel grade has a minimum tensile strength of 600 MPa. This high tensile strength ensures the material can withstand heavy loads and resist deformation under stress.

2. Yield Strength: The minimum yield strength of G-X5CrNiMoNb1810 is 400 MPa. This property indicates the maximum stress the material can handle before permanent deformation occurs.

3. Elongation: The steel grade exhibits a minimum elongation of 20% to ensure it can withstand deformation without failure. This property is crucial when the material needs to absorb energy or undergo forming processes.

4. Hardness: G-X5CrNiMoNb1810 has a hardness range of 25-35 HRC (Rockwell hardness). This moderate hardness allows for easy machining while maintaining adequate strength and wear resistance.

Chemical Composition:

1. Chromium (Cr) – 16-18%: Chromium provides excellent corrosion resistance and enhances the steel’s ability to withstand oxidizing environments.

2. Nickel (Ni) – 10-14%: Nickel improves the steel’s resistance to corrosion, especially in acidic and chloride-containing solutions.

3. Molybdenum (Mo) – 2-3%: Molybdenum helps enhance the overall corrosion resistance, especially in chloride-rich environments, and improves the material’s mechanical strength.

4. Niobium (Nb) – 0.1-0.3%: Niobium improves the steel’s high-temperature strength and contributes to its heat resistance.

5. Carbon (C) – 0.03% max: A low carbon content ensures the material’s resistance to sensitization and reduces the risk of intergranular corrosion.

6. Sulfur (S) – 0.03% max: A low sulfur content helps improve the material’s hot-working properties and reduce the risk of brittleness.

7. Phosphorus (P) – 0.04% max: A low phosphorus content ensures good weldability and improves the material’s resistance to intergranular corrosion.

Overall, G-X5CrNiMoNb1810 steel grade offers a combination of high strength, excellent corrosion resistance, and good machinability, making it a desirable material for various industries like petrochemical, oil and gas, aerospace, and marine applications.
G-X5CrNiMoNb1810 Steel grade
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