Aircraft Steel AISI 4340

We are leading manufacturer and stockist of Aircraft Steel AISI 4340 in China.Aircraft Steel AISI 4340 Technical Data SheetAircraft Steel AISI 4340 Chemical Composition LimitsWeight%CMnP & SSiCrNiMoE4340 Bar0.38 - 0.430.65 - 0.850.0250.15-0.300.70-0.901.65-2.000.20-0.30E4340 Plate0.38-0.430.60-0.800.0250.15-0.350.70-0.901.65-2.000.20-0.30Alloy E 4340 is a widely used deep-hardening constructional steel. Due to E-4340's high alloy content it obtains a uniformed hardness by heat treatment. The high fatigue strength makes E4340 ideal for highly stress parts as it maintains it's strength and hardness at elevated temperatures.Aircraft Steel AISI 4340 Mechanical PropertiesAlloyConditionTensile Strength ksiYield Strength ksiElongation 4D %Reduction of Area %Hardness HBAlloy Steel E4340 BarAnnealed----235 maxAlloy Steel E4340 BarHardened and Tempered2602171030-Aircraft Steel AISI 4340 Heat TreatmentTo obtain the highest strength (260,Website:,000 psi minimum ultimate)                                     E 4340Normalised1650°F / 1 hrAustenitise1500°F / 1 hrQuenchOilDouble Temper475°F / 2 hr twiceAircraft Steel AISI 4340 Specifications  UNS G43406  AMS 6359 Sheet / strip / plate  AMS 6409 Bars / Forgings N&T  AMS 6414 Vac Melt Bars / Forgings  AMS 6415 Bars / Forgings  AMS 6484 Bars / Forgings N&T  AMS-S-5000  MIL-S-8844 Cl1  ASTM A322  ASTM A331  AISI E4340  BMS-7-28  BPS-299-947-055  BPS-299-949-055The Aircraft Steel AISI 4340 items which we can manufacture and supply are the followings.  Aircraft Steel AISI 4340 Rod  Aircraft Steel AISI 4340 Rings  Aircraft Steel AISI 4340 Forgings  Aircraft Steel AISI 4340 pipe  Aircraft Steel AISI 4340 tube  Aircraft Steel AISI 4340 bars  Aircraft Steel AISI 4340 plates  Aircraft Steel AISI 4340 sheets  Aircraft Steel AISI 4340 Strip  Aircraft Steel AISI 4340 wire  Aircraft Steel AISI 4340 fitting Union  Aircraft Steel AISI 4340 Pipe Elbows  Aircraft Steel AISI 4340 PIPE Tee  Aircraft Steel AISI 4340 ADAPTERS  Aircraft Steel AISI 4340 pipe bend  Aircraft Steel AISI 4340 reducers  Aircraft Steel AISI 4340 fitting caps  Aircraft Steel AISI 4340 pipe outlets  Aircraft Steel AISI 4340 Stub Ends  Aircraft Steel AISI 4340 Couplings  Aircraft Steel AISI 4340 pipe Nipples  Aircraft Steel AISI 4340 BUSHINGS  Aircraft Steel AISI 4340 pipes sockets  Aircraft Steel AISI 4340 Pipe Gasket  Aircraft Steel AISI 4340 pipe joints  Aircraft Steel AISI 4340 pipe Cross  Aircraft Steel AISI 4340 Pipe Wyes  Aircraft Steel AISI 4340 seal ring  Aircraft Steel AISI 4340 Flange  Aircraft Steel AISI 4340 bolts  Aircraft Steel AISI 4340 nuts  Aircraft Steel 4330 Mod VM  Aircraft Steel 4620 Vac Melt  Aircraft Steel AMS 6411  Aircraft Steel AMS 6294ONE OF THE KIND, MILLIONS OF CHOICES SUPERIOR QUALITY PROMPT DELIVERY FAVORABLE FEEDBACK ALL AVAILABLE IN PESCO SELECT PESCO, YOU WILL BE RIGHT For more info and price of Aircraft Steel AISI 4340, please send us inquiry and you will have quick reply soon.


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