Mechanical Properties:
– Tensile Strength: 800-1000 MPa
– Yield Strength: 600-800 MPa
– Elongation: 10-15%
– Hardness: 200-250 HB
Technical Properties:
– Density: 7.85 g/cm3
– Melting Point: 1420-1460°C
– Thermal Conductivity: 41 W/mK
– Specific Heat Capacity: 460 J/kg·K
Chemical Composition:
– Carbon (C): 0.17-0.23%
– Silicon (Si): 0.40% max
– Manganese (Mn): 0.50-0.80%
– Phosphorus (P): 0.035% max
– Sulfur (S): 0.035% max
– Chromium (Cr): 1.50-1.80%
– Nickel (Ni): 2.75-3.25%
– Molybdenum (Mo): 0.25-0.35%
The 21NiCrMo2 steel grade exhibits good corrosion resistance in harsh environments due to its chemical composition and can be used in demanding applications requiring high strength and toughness.
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