42CrMo4 4140 1.7225 SCM440 Hot Forged Shaft

Largest Weight:15000kg Surface Finish:6.3um Ra Or As Required.Forging Reduction Min:3.1 Or As RequiredRought machining or Finis Machining Heat Treatment: Q+T  Normalizing Or customized  Standards: GB:40CrNiMOA、DIN:36CrNiM04、JIS:SNCM439、BS:816M40、NF:40NCD3、AISI/ASTM:4340、AS:1444-4340、UNS:G43400 Composition: C:0.38-0.43%；Si：0.15-0.35%；Mn:0.6-0.8%；S≤0.04%；P≤0.035%；Cr：0.7-0.9；Mo：0.2-0.3；Ni：1.65-2.00% The company's testing equipment includes: One German SPECTRO direct-reading spectrometer, one handheld portable spectrometer, one metallographic microscope, one infrared thermometer, desktop and portable hardness testers, universal tensile machines and impact testing machines, etc.  The non-destructive testing includes ultrasonic, magnetic powder and penetration testing items. Rolling forging shaft and forged step shaft are widely used in the production of various mechanical components, including those for automobiles. Rolling Forging Shaft for automob…