AISI E4340 Alloy Steel Chemical Composition & Properties, Grades, Chart and Pdf
AISI E4340, the steel with low alloy, that is the steel with low alloy, is highly reputable not just for its awesome toughness and tensile strength but also for its high tensile strength. The chemical content which is nickel, chromium and molybdenum(Ni, Cr and Mo)and above outstanding performance in machinability and wear resisting (two great characteristics features of this material) can be added to the alloyed steel. A286 ductility and machinability are commonly applied in making or casting in the aircraft and automotive industries. The most machinable form is E4340. This particular material possessing of having high tensile strength, impact resistance and scratch resistance is hence the suitable constituent for operation in the heavy loaded parts viz. gears, shafts, and axles. E4340 metallic series with grades given based on ASTM standards bring variety of shapes like round, square, and flat. The engineers at first have to address the intricate graphs and the manuals that show properties of the metal, such as mechanical properties listed, heat treatment recommendations and chemical composition of the metal in order to use the material effectively in engineering projects.
AISI E4340 Alloy Steel Chemical Composition And Grade Table
The AISI E4340, a low-alloy steel with high-level grades of strength and durability is one of the most advanced type of steels that is enjoyed by industrial applications. Its chemical composition normally includes carbon (content not more than 0.43%), manganese (within 0.60-0.80%), phosphorus (no more than 0.035%), sulfur (no more than 0.040%, silicon (content within 0.15-0.35%), chrome (content within 0. These E4340 steel grades are regulated as per the ASTM A322 and ASTM A304 standards and because of that they are widely used as heat resistant materials to design and create aircrafts, automobiles and machines.
| Elements | Iron, Fe | Nickel, Ni | Chromium, Cr | Manganese, Mn | Carbon, C | Molybdenum, Mo | Silicon, Si | Phosphorous, P | Sulfur, S |
|---|---|---|---|---|---|---|---|---|---|
| Min (%) | 95.175 | 1.65 | 0.7 | 0.65 | 0.38 | 0.2 | 0.15 | - | - |
| Max (%) | 96.27 | 2 | 0.9 | 0.85 | 0.43 | 0.3 | 0.3 | ≤ 0.0250 | ≤ 0.0200 |
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