7A04 Aluminum Forgings Forged Product Parts

• Customization: Available
• Processing Object: Metal
• Molding Style: Hot Forging
• Model NO.: 7A04
• Molding Technics: Gravity Casting
• Application: Aviation
• Material: Aluminium
• Heat Treatment: Quenching
• Surface Treatment: Zinc/Chrome Plating, Anodizing
• Forging Tolerance: +/-0.2mm
• Standard: ANSI
• Certification: CE, ISO 9001:2008
• Service: OEM ODM
• Transport Package: Export Standard Wooden Pallet or as Your Requsts
• Specification: According to Customer Requirement
• Trademark: Chalco Aluminum
• Origin: Henan China
• HS Code: 7218100000
• Production Capacity: 5000pieces/Month

Product Description

7A04 alloy is a heat-treated strengthening alloy of Al-Zn-Mg-Cu system. Its strength is higher than that of hard aluminium. Its yield strength is close to tensile strength and its plasticity is lower. Its sensitivity to stress concentration is strong, especially under the condition of vibration load and repeated static load. Therefore, the design, manufacturing and assembly of parts need to strictly avoid stress concentration and additional stress factors. The heat resistance of the alloy is poor, and it will soften sharply when the temperature is higher than 125 C. The stress corrosion resistance of thick parts in short and transverse direction is poor.

7A04 aluminum forgings forged product parts is widely used in the main stress parts of aircraft structure, such as girder, truss, partition frame, skin, wing rib, joint, landing gear parts, etc. It can produce various semi-finished products, such as sheets, strips, profiles, bars, wallboards, pipes, wires, free forgings and die forgings.

Chemical Composition of 7A04 aluminum alloy

Alloy

Si

Fe

Cu

Mn

Mg

Cr

Ni

Zn

Ti

Zr

Others

Al

Single

Total

7A04

0.50

0.50

1.4~2.0

0.20~0.60

1.8~2.8

0.15~0.25

-

5.0~7.0

-

-

0.05

0.15

Rest

Alloy	Alloy series	Main features	Σb Value/MPa	Working temperature/ºC
7A04	B95(Russia)	Yield strength is close to tensile strength, plasticity is low, and sensitivity to stress concentration is strong, especially under the condition of vibration load and repeated static load. Therefore, stress concentration and additional stress factors should be strictly avoided in the design, manufacture and assembly process of parts. The short transverse Kang stress corrosion resistance of the heavy alloy parts is poor.	480~570	<125

Physical Property of 7A04 aluminum forgings forged product parts
Alloy	Type	Temper	δ Specs/mm	Direction	σb/MPa	σp 0.2/MPa		δ %	Standard
7A04	Free forgings	T6	Weight ≤30KG	L	510		420	6	GJB 2351-1995
			Weight>30KG	L	510		420	5
	Die forgings	T6	Weight≤30KG	L	530		440	6
			Weight>30KG	L	430		440	6

 

Alloy	Temper	Aircraft type	Application parts and typical part
7A04	Aluminum forgings forged product parts:T6,T652,T73,T7352	Y8, Y12	Skin, wallboard, all kinds of beams (backlogs, forgings), partition frame, wing ribs, long truss, joints, landing gear parts, etc.

Type	Alloy	Projected area (m2)Or weight(kg)	Temper	Standard
Aluminum free forgings	5 series	≤3000kg	O,F	GBn223     ASTMB247
	2,6,7 series	≤3000kg	T6,T4,O,F
Aluminum die forgings	5 series	≤2.5m2	O,F
	2,6,7 series	≤2.5m2	T6,T4,O,F