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4140 Case Hardening Structure Steel
4140 alloy structural steel. This steel has good workability and small processing deformation. The fatigue resistance of 4140 alloy structural steel is quite good. It is a medium-sized hardenable steel. 4140 has good strength and good comprehensive mechanical properties after heat treatment. Good manufacturability and high yield. The highest operating temperature is 427 degrees Celsius. 4140 strength, high hardenability, good toughness, small deformation during quenching, high creep strength and enduring strength at high temperatures.
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