About 4340 (E4340) Alloy Steel
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. It also offers good ductility in the annealed condition, allowing it to be bent or formed. Fusion and resistance welding is also possible.
4340 (E4340) steel alloy is used primarily for structural applications such as aircraft landing gear, as well as other structural parts like gears, sprockets, chucks, molds, and more.
About AMS 6415 Round Bar
(Cold Finished, Hot Rolled)
AMS 6415 round bar cold finished or hot rolled is one of the richer alloy steels, featuring hardenability with high strength characteristics. This steel is an excellent choice for highly stressed parts intended to operate under severe conditions. It is used for crankshafts, landing gear struts, valves, connecting rods, axle shafts, machine tool arbors, and more.
Typical Chemical Properties (%)
|Phosphorus||0.025 max.||Chromium||0.70/0.90||Copper||0.35 max.|
With the largest stocked inventory of aircraft quality steel, Benedict-Miller delivers the best 4340 (E4340) steel plate or round bar cut and finished to your specifications when you need it.Call 1-908-497-1477 to get a quote and immediate answers to your questions.
Quality Raw Materials
from Prime Stock
Our long-standing relationship with vendors ensures you the highest quality raw materials. Representing only prime stock from world class mills, all our AQ steel is certified to Aerospace Material Specifications (mill certification available upon request).
Our diverse supply chain ensures you get the right material for your projects.
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Benedict-Miller: Supplying the world AISI 4130 (E4130), and 4340 (E4340) Aircraft Quality Steel