38SM28(1.0760)Free Cutting Steel

free cutting steel 1, intensity of tension 0b MPa 2, the best price 3, Short delivery term

38SM28(1.0760)Automatic Steel

1  Characteristics and application scope:

      Is high sulfur carbon free cutting steel, and have a good cutting performance, compared with 45 steel can improve the life of cutter four times, increase production efficiency 30%, with high strength and hardness, and is suitable for processing requirements of high rigidity of the parts, such as ball screw, strength, rack and spline shaft, etc.

 

 2  chemical composition:

     C :0.37~0.45     Si:0.15~0.35     Mn:1.20~1.55     S :0.02~0.30     P :≤0.05

3   mechanical property:

tensile strengthσb (MPa):(hot rolling)590~735;(Cold and high temperature after the tempering state) 590~785

elongationδ5 (%): (hot rolling)≥14;(Cold and high temperature after the tempering state)≥17

reduction of areaψ (%): (hot rolling)≥20

hardness:(hot rolling)≤207HB;(cold draw):179~229HB

4  condition of delivery:Hot or cold pull to state delivery, delivery status should be indicated in the contract.

38SM28(1.0760)Free Cutting Steel