Trial Production and Development of Heat Treated Boron Steel TB38 for Agricultural Machinery
By designing a high carbon,high manganese,and titanium microalloyed strengthening composition system,a boron steel composition for agricultural machinery was designed.At the same time,the hot rolling processes such as final rolling and coiling temperature were optimized,and TB38,a heat-treated boron steel for agricultural machinery,was successfully developed.The microstructure of the hot-rolled product is ferrite+pearlite,with a decarburization layer of ≤ 0.02 mm.After heat treatment,the surface hardness(HRC)is≥53,which meets the requirements for agricultural machinery use.The finished product has high strength,toughness,and wear resistance.
boron steelused for agricultural machinerydecarburization layerheat treatment