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STEEL FOR SUPERFICIALLY TREATED MECHANICAL PARTS WITH HIGH MECHANICAL CHARACTERISTICS, AND MECHANICAL PARTS MADE FROM THIS STEEL AND THEIR FABRICATION PROCESS.
STEEL FOR SUPERFICIALLY TREATED MECHANICAL PARTS WITH HIGH MECHANICAL CHARACTERISTICS, AND MECHANICAL PARTS MADE FROM THIS STEEL AND THEIR FABRICATION PROCESS.
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机译：具有高机械特性的经过精密处理的机械零件用钢，以及由该钢及其制造工艺制成的机械零件。
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摘要
A steel includes: by weight, -0.35%=C= 0.50%; -0.30%=Mn=1.50%; -traces=Cr=1.50%; -0.05%=Mo=0.50%; -0.15%=Si=1.20%; -traces=Ni=1.0%; -traces=Cu=1.0%; -traces=V=0.35%; -traces=Al=0.10%; -traces=B=0.005%; -traces=Ti=0.10%; -traces=Nb=0.10%; -traces=S=0.15%; -traces=Ca=0.010%; -traces=Te=0.030%; -traces=Se=0.050%; -traces=Bi=0.050%; -traces=Pb=0.100%; -traces=N=0.020%; and the balance of iron and impurity formed by the finish machining. The contents of C, Mn and Cr are satisfied 830-270C%-90Mn%-70Cr%)=620. The invention also provides a manufacturing method of mechanical parts made out of that steel and the obtained mechanical parts.
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机译：以重量计，钢包括：-0.35％<= C <= 0.50％; -0.30％<= Mn <= 1.50％; -迹线<= Cr <= 1.50％; -0.05％<= Mo <= 0.50％; -0.15％<= Si <= 1.20％; -迹线<= Ni <= 1.0％; -迹线<= Cu <= 1.0％; -迹线<= V <= 0.35％; -迹线<= Al <= 0.10％; -迹线<= B <= 0.005％; -迹线<= Ti <= 0.10％; -迹线<= Nb <= 0.10％; -迹线<= S <= 0.15％; -迹线<= Ca <= 0.010％; -迹线<= Te <= 0.030％; -迹线<= Se <= 0.050％; -迹线<= Bi <= 0.050％; -迹线<= Pb <= 0.100％; -迹线<= N <= 0.020％;以及通过精加工形成的铁和杂质的余量。 C，Mn和Cr的含量满足830-270C％-90Mn％-70Cr％）≤620。本发明还提供一种由该钢制成的机械零件的制造方法以及所获得的机械零件。
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