Alloy Steel Grade: AISI 8740
Product Forms: Steel, Chrome-Nickel-Molybdenum (8740) Bars and Re-forging Stock (Aircraft Quality)
Scope: This specification presents the requirements for chrome-nickel-molybdenum (8740) steel bars and re-forging stock of aircraft quality.
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DISCLAIMER: Alloy data sheets are for reference only, not for design purposes.
|C 0.43% Max||Cr 0.40 – 0.60%||Fe 96.65 – 97.72%||Mn 0.72 – 1.0%||Mo 0.20 – 0.30%|
|Ni 0.40 – 0.70%||P 0.035% Max||Si 0.15 – 0.30%||S 0.040% Max|
|Tensile Strength: –||Yield Strength: –||Elongation: 16.0%|
Tensile properties and associated requirements vary due to orientation, section thickness, and engineering requirements.