AMS 6349
Alloy Steel Grade: AISI 4140
Product Forms: Steel, Bars | Normalized
Scope: This specification covers an aircraft-quality, low-alloy steel in the form of bars.
Product availability:
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DISCLAIMER: Alloy data sheets are for reference only, not for design purposes.
| Chemical Composition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Fe 97.0% | Cr 1.0% | Mn 0.90% | C 0.40% | Si 0.25% | |||||
| Mo 0.20% | S 0.05% | P 0.04% | |||||||
| Mechanical Properties | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Tensile Strength: 95 – 107.3 ksi | Yield Strength: 60.2 – 95 ksi | Elongation: 17.7 – 25.7% | |||||||
Tensile properties and associated requirements vary due to orientation, section thickness, and engineering requirements.
Alloy Steel 4140 Applications:
- Commercial and Military Aircraft
- Automotive
- Oil & Gas
- Agricultural
- Forged Gears and Shafts
Cross Reference Specifications
T.I. Approvals:
Plus a wide range of approvals from most leading OEM’s across Aerospace, Medical, Industrial, and Oil and Gas markets.