What is E4340 steel?

What is E4340 steel?

E4340 is a highly alloyed, electric-furnace processed; vacuum degassed grade, which conforms to the rigid aircraft standards of AMS-2301. It contains approximately 0.8% chromium, 1.8% nickel, and 25% molybdenum.

What is E4340?

AISI 4340 (E4340) alloy steel is a medium carbon, low alloy steel known for its toughness and strength. Machining is done typically in the annealed condition. 4340 steel alloy is used primarily for structural applications such as aircraft landing gears.

What is 4340 steel used for?

AISI 4340 alloy steel is mainly used in power transmission gears and shafts, aircraft landing gear, and other structural parts.

Is 4340 low carbon steel?

4340 steel is an “ultra-high” strength steel classified a medium-carbon, low-alloy steel. 4340 has high strength, ductility, toughness, creep resistance, and fatigue resistance relative to most other steels.

How hard is 4340 steel?

The tensile strength of the 4340 steel material core is usually not affected since the nitriding temperature range is generally below the original tempering temperature employed. Surface hardness achievable is 600 to 650HV.

What is AQ steel?

Alro stocks 4340 AQ – a highly alloyed steel with high nickel and chromium content which assures deep hardening when oil quenched, with high strength characteristics throughout the section. Used for heavily stressed parts operating under strenuous conditions.

What grade of steel is 4340?

4340 is a 1.8% nickel – chromium – molybdenum high hardenability high tensile steel – generally supplied hardened and tempered in the tensile range of 930 – 1080 Mpa (condition U) – (Rc 28 – 36).. Characterised by high strength and toughness in relatively large sections.

What type of material is 4340?

AISI 4340 is a low alloy steel containing nominally 0.4% C, 0.8% Cr, 0.25% Mo and 1.8% Ni. Higher strength levels up to 150 KSI 0.2% PS may be achieved by suitable heat treatment. Often used in preference to AISI 4140 at the higher strength levels because of its better hardenability and improved CVN impact toughness.

What is the carbon content of 4340 steel?

AISI / SAE 4340 Alloy Steel

What is 4340 chromoly steel?

4340 Chrome Moly Round Bars will be added to your quote! 4340 is nickel-chromium-molybdenum alloy steel. It is ideal for highly stressed parts, and it can attain much deeper hardenability than 4100 series steel.

What is EN24 material?

EN24 is a very high strength steel alloy which is supplied hardened and tempered. The grade is a nickel chromium molybdenum combination – this offers high tensile steel strength, with good ductility and wear resistance characteristics.

Whats better 4140 or 4340?

However, 4340 has more carbon, while 4140 has more chromium. One of the most significant differences between the two metals is the inclusion of nickel in 4340 steel, which accounts for the metal’s greater strength and fracture toughness.

What are the mechanical properties of AISI e4340 steel?

The following table shows the physical properties of AISI E4340 alloy steel. The mechanical properties of annealed AISI E4340 alloy steel are displayed in the following table. Machinability (annealed and cold drawn. Based on 100 machinability for AISI 1212 steel) The thermal properties of AISI E4340 alloy steel are given in the following table.

What can 4340 alloy steel be used for?

Fusion and resistance welding is also possible with our 4340 steel from stock. 4340 steel alloy is used primarily for structural applications such as aircraft landing gears. 4340 alloy steel is also used in the manufacturing of structural parts like gears, sprockets, chucks, molds, and more.

What can a 4340 round bar be used for?

This steel is an excellent choice for highly stressed parts intended to operate under severe conditions. 4340 steel round bar is used for crankshafts, landing gear struts, valves, connecting rods, axle shafts, machine tool arbors, and more. Learn more by visiting our 4340 per AMS 6415 CF and HR bar pages.

How much lamellar pearlite is in Castle 4340?

Castle 4340 annealed hot roll bars are 80% minimum lamellar pearlite for improved machinability. RED. OF AREA-%