Alloy Steel 4140/4130/4340 Application: For Indicators

We are engaged in manufacturing, exporting, distributing and supplying excellent quality Alloy Steel 4140/4130/4340 to our valuable clients.
1.Chemical composition:
C0.38-0.43 Si0.15-0.35 Mn0.75-1.00 Pmax0.035 Smax0.040 Cr0.80-1.10 Mo0.15-0.25
2.Steel making process: EAF+LF+VD
3.Formed technique: hot rolled or forged
4.Delivery condition: 28-34HRC N/A/Q+T
5.Heat treatment:
1)Normalizing: 860A 10a , in air cold
2)Quench: 850A 10a , in oil or water cold
3)Tempering: depending on the hardness

6.Properties:
1) Medium hardenability steel
2)Excellent fatigue resistance, good processability and small deformation when processing
3)Good intensity and nice synthetic mechanical property

7. Applications:
1) Used in the manufacturer of the high strength forgings
2) Available at 2,000 meters deep of oil drill pipe and fishing tools
3) Used for bending machine mold