2024 aluminum alloy
It belongs to the Al-Cu-Mg alloy family (with copper and magnesium as primary alloying elements) and is known for its excellent strength-to-weight ratio, fatigue resistance, and machinability.
Descriptions
1. Chemical Composition
The chemical composition of 2024 aluminum alloy adheres to standards such as AMS 4127 and ASTM B211. Key elements include:
Element | Composition (% by Weight) |
Aluminum (Al) | Balance |
Copper (Cu) | 3.8–4.9 |
Magnesium (Mg) | 1.2–1.8 |
Manganese (Mn) | 0.3–0.9 |
Iron (Fe) | ≤ 0.50 |
Silicon (Si) | ≤ 0.50 |
Zinc (Zn) | ≤ 0.25 |
Chromium (Cr) | ≤ 0.10 |
Titanium (Ti) | ≤ 0.15 |
Others (total) | ≤ 0.15 |
2. Mechanical Properties
2024 aluminum forgings are typically supplied in T3, T4, or T6 temper conditions. Properties vary based on heat treatment:
Property | T3 Temper | T4 Temper | T6 Temper |
Tensile Strength (MPa) | 470–490 | 425–450 | 450–485 |
Yield Strength (MPa) | 325–345 | 290–310 | 310–345 |
Elongation (% in 50 mm) | 10–15 | 15–20 | 8–12 |
Modulus of Elasticity (GPa) | 72 | 72 | 72 |
Hardness (Brinell HB) | 120–135 | 105–120 | 120–130 |
Fatigue Strength (MPa) | 140–160 | 130–150 | 140–160 |
3. Common Forging Product
Flanges and fittings
Gear blanks
Connecting rods
Valve bodie
Piston heads
Structural brackets
4. Industry standards
Standard | Scope |
AMS 4127 | Aerospace hand forgings (chemical, mechanical properties). |
ASTM B211 | Bars, rods, and wire specifications. |
ASTM B247 | Die forgings (dimensional tolerances, testing). |
SAE J454 | Chemical composition limits for alloys. |
AMS 2772 | Heat treatment processes (T3/T4/T6 tempers). |
MIL-A-22771 | Military-grade aircraft forgings (NDT requirements). |
EN 586-2 | European standard for forgings (mechanical testing). |
ASTM E8/E8M | Tensile testing (strength, elongation). |
ASTM E18 | Hardness testing (Rockwell/Brinell). |
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CONTACT US
Address
B-2007,Chuanmei Building,Taishan Street,Taian City，Shandong, China
Call Us
+86 0538 6368027
Email Address
Sales@tiptopforging.com
Applications
Aircraft wing spars, fuselage frames, landing gear components.
Suspension systems, engine pistons, transmission parts.
Hydraulic systems, gears, shafts.
