40nicrmo2** form: plate, rod, tube, steel strip, wire, forging, forging pipe, forging plate, forging bar, round bar, plate, sheet, seamless pipe, welded pipe, round bar, wire, steel plate, disc round, strip.
1.Introduction.
40nicrmo2 is a commonly used engineering material with excellent mechanical properties and heat treatment properties.
2.Chemical composition.
The chemical composition of 40nicrmo2 is as follows:
Nickel (Ni): 15-2.00%
Chromium (cr): 070-1.00%
Molybdenum (Mo): 020-0.35%
Carbon (c): 037-0.44%
Silicon (Si): 015-0.40%
Manganese (mn): 050-0.80%
Phosphorus (p): no more than 0025%
Sulfur (s): no more than 0025%
3.Physical properties.
40NiCRMO2 has the following physical properties:
Density: 785 g/cm³
Melting Point: 1420-1460
Thermal conductivity: 12-16 W (m·k).
Coefficient of linear expansion: 11-14 10-6
4.Mechanical properties.
The mechanical properties of 40nicrmo2 depend on its heat treatment state. The following are its typical mechanical property values (with appropriate heat treatment):
Yield strength: 1000 MPa
Tensile strength: 1200 MPa
Elongation: 10%.
Hardness: 370 HB
Impact toughness: 30 J cm
5.Heat treatment process.
The heat treatment process of 40nicrmo2 includes quenching and tempering.
Quenching: The steel is heated to 890-950 and then quickly cooled to room temperature. This makes it possible to obtain materials with high hardness and strength.
Tempering: The quenched material is heated to 400-600 for a certain period of time, and then cooled to room temperature. This reduces the hardness of the material and improves toughness.
6.Fields of application.
40nicrmo2 is widely used in the manufacture of high-strength, high-hardness parts and tools, such as gears, shafts, pins and stamping dies. Its excellent mechanical properties and heat treatment properties make it widely used in the field of engineering.
7.Conclusion.
In summary, 40nicrmo2 is an excellent engineering material with excellent mechanical properties and heat treatment properties. Understanding its comprehensive profile, chemical composition, physical properties, mechanical properties, and heat treatment process is essential for the proper use and handling of the material. With the right application and reasonable heat treatment conditions, 40nicrmo2 will exert its excellent performance to meet the needs of the engineering field.