Mechanical properties:
– 34CrNiMo6 steel has a high yield strength of 980 MPa, compared to 4140 steel with a yield strength of 655 MPa and 4340 steel with a yield strength of 930 MPa.
– 34CrNiMo6 has a high tensile strength of 1180 MPa, which is comparable to 4340 steel with a tensile strength of 1080 MPa.
Technical properties:
– 34CrNiMo6 steel has a high fatigue limit and good impact toughness, making it suitable for high-stress applications such as gears, crankshafts, and heavy-duty axle shafts.
Chemical composition:
– 34CrNiMo6 steel contains 0.30-0.37% carbon, 1.30-1.70% chromium, 1.30-1.70% nickel, and 0.15-0.30% molybdenum. This composition provides good hardenability and high strength, making it suitable for applications requiring high toughness and fatigue resistance.
Overall, 34CrNiMo6 steel offers superior mechanical properties and technical performance compared to other alloy steel grades such as 4140 and 4340, making it a preferred choice for demanding engineering applications.
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