40Cr Steel Robot Joint Components: The King of Cost-Effectiveness in Heavy-Duty Scenarios

40Cr steel, after quenching and tempering, achieves a hardness of HRC25-32 and a tensile strength ≥980MPa, with a cost only 1/5 that of titanium alloy. Medium-frequency quenching increases surface hardness to HRC55, improving wear resistance by 200%. Used in automotive manufacturing robot joints, it supports a 200kg load for continuous operation of 10,000 hours without deformation, with an annual failure rate <0.5%.