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7A09

7A09 is an aviation super-hard aluminum alloy with high strength and good wear resistance. 7A09 is an Al-Zn-Mg-Cu super-hard aluminum. This alloy was used in the aircraft manufacturing industry in the late 1940s and is still in the aviation industry. Ultra-high-strength deformed aluminum alloy widely used. Its characteristic is that the plasticity after solution treatment is good, and the heat treatment strengthening effect is particularly good.

Product introduction

7A09 is an aviation super-hard aluminum alloy with high strength and good wear resistance.

7A09 is an Al-Zn-Mg-Cu superhard aluminum. This alloy was used in the aircraft manufacturing industry in the late 1940s and is still widely used in the aviation industry. It is characterized by good plasticity after solution treatment, particularly good heat treatment strengthening effect, high strength below 150 °C, and particularly good low temperature strength; poor weldability; stress corrosion cracking tendency; need to be coated with aluminum or other Protection processing is used. Two-stage aging improves the ability of the alloy to resist stress corrosion cracking. The plasticity in the annealed and quenched state is slightly lower than the same state of 2A12. Slightly better than 7A04, the static fatigue of the sheet. Notch sensitive, stress corrosion performance is better than 7A04.


Typical use

7A09 is mainly used to manufacture aircraft structures and other high-stress structural parts that require high strength and corrosion resistance, such as aircraft, lower wing panels, purlins, etc. Good solution after solution treatment, good heat treatment strengthening effect, good strength below 150 degrees, and particularly good low temperature strength, poor welding performance, stress corrosion cracking tendency. Also widely used in mold processing, mechanical equipment, fixtures, aerospace industry, blow molding (bottle) mold, ultrasonic plastic welding mold, golf head, shoe mold, paper mold, foam molding, dewaxing mold, machinery Equipment, used to make high-end aluminum alloy bicycle frame. In 2014, it will be used for the first time as the body material of the smartphone OPPO N3.

National brands

chemical composition

Alloy grade Silicon Si Iron Fe Copper Cu Manganese Mn Magnesium Mg Chromium Cr Zinc Zn Titanium Ti other Aluminum AL
New grade Old grade 0.5 0.5 1.2-2.0 0.15 2.0-3.0 0.16-0.30 5.1-6.1 0.1 Each total
7A09 LC9 0.05 0.15 margin


performance

Aluminum alloy grade and tensile strength Yield Strength Elongation /%
7A09 530 400 5


Heat treatment

Aluminum alloy grade and status Thermal expansion coefficient
(20-100 ° C)
Mm/m·k
Melting point range
(°C)
Conductivity
20 ° C (68 ° F)
Resistivity 20 ° C (68 ° F)
Ωmm2/m
density
(20 ° C) (g / cm3)
7A09-T6 23.6 475-635 33 0.0515 2.9


Application field

  • Industrial mold

    Industrial mold

  • Railway field

    Railway field

  • Ship field

    Ship field

  • Nuclear power

    Nuclear power

  • Mine field

    Mine field

  • Construction machinery

    Construction machinery

  • Petrochemical

    Petrochemical

  • Electronic appliances

    Electronic appliances

ADVANTAGE
Our advantage

Integrity, customer first, excellence

Rich industry experience

RICH INDUSTRY EXPERIENCE

We have been engaged in the research and development and manufacture of metal products for many years, and have accumulated rich experience in the industry. We provide stainless steel coils, stainless steel hot and cold rolled sheets, stainless steel flat plates, etc., which are recognized by the industry with integrity, strength and products!

Advantage1

Reliable product quality, reasonable price

RELIABLE PRODUCT QUALITY

Strive to meet the market demand for various specifications, and to ensure quality, low prices, welcome new and old customers to negotiate and discuss.

Advantage2

Logistics guarantee · perfect after-sales service

STRONG PRODUCTION STRENGTH

We show you the extremely accurate order status and delivery tracking system. The company has obtained ISO9001 quality system certification, and integrates R&D, production, sales and after-sales into a high-tech enterprise. The company has a perfect after-sales service system.

Advantage3
ADVANTAGE
Logistics advantage

Integrity, customer first, excellence

The logistics system escorts your goods

Processing, packaging, distribution, one-stop service

(All kinds of waterproof, export packaging)

Provide free exchanges to reduce your production costs

Orders arrive within 24 hours of delivery