Page 13 - Motor Fan illustrated Special Edition

The general properties of aluminum alloys
1000 series aluminum 5000 series alloys

This refers to pure aluminum materials: 1100 and 1200 are the 5000 series alloys with relatively low levels of Mg are used as
most common types. 1050, 1070, and 1085 indicate that they decorative materials, etc., and those with relatively high Mg
have a purity of at least 99.50%, 99.70%, and 99.85% levels are used for structural materials.
aluminum respectively. Typical of the alloys with a moderate amount of Mg is 5052. It
1000 series aluminum is not a high-strength material, but it is the most versatile. The alloy 5083 contains a large amount
has excellent corrosion resistance and formability, and of Mg and is the strongest of the non-heat-treatable alloys.
because it also has a highly lustrous surface it is often used Also being suitable for welding, it is used for welded
for decorative parts, nameplates, reective plates, etc. structural materials in boats, automobiles, chemical plants,
The material also features excellent electrical conductivity etc. It performs well in environments exposed to seawater or
and heat-conductivity, and 1060 and 1070 are often used for pollution.
power lines and heat dissipation materials. 6000 series alloys
2000 series alloys 6000 series alloys have medium to high strength and good
Representative alloys in this series are 2017 and 2024, which corrosion resistance.
are known as duralumin and super duralumin respectively. The 6061-T6 alloy has a proof stress of over 245N/mm ,
2
They are almost as strong as steel. meaning it is a high-strength alloy comparable to ASTM A36
On the other hand, they include copper, so they are relatively (JIS3101 SS400) structural carbon steel.
lacking in corrosion resistance, and when used in corrosive The 6063 alloy is excellent material for extrusion, and it is
environments they therefore require anti-corrosion treatment. widely used as a construction material, particularly for
2014 is commonly used as a high-strength forged material. window frames.
2000 series alloys are highly machinable. 2011, in particular, is
commonly used for machine components due to its high 7000 series alloys
machinability. The 7000 series alloys can be divided into two groups:
Al-Zn-Mg-Cu alloys, which are the strongest of all aluminum
3000 series alloys alloys; and Al-Zn-Mg alloys, which are used for welded
The representative alloy in this series is 3003, and the structural materials.

addition of Mn means it is an alloy that retains the formability 7075, one of the leading Al-Zn-Mg-Cu type alloys, is used in

and corrosion resistance of pure aluminum while boasting aircraft and trains. Motor Fan illustrated

increased strength. It is commonly used for utensils, 7204, one of the leading Al-Zn-Mg type alloys, is strong, and
containers and as a building material. room-temperature age hardening means that welded parts
The 3004 and 3104 alloys are based on the 3003 alloy but recover to a strength similar to that of the base material,

contain approximately 1% Mg to further increase their giving it superior joining efciency.
strength. They are used for aluminum cans, roof cladding,
door panels, etc. Other alloys
4000 series alloys Since the addition of Li to aluminum makes it less dense and

increases its Young's modulus, it is garnering attention as an
The addition of silicon to the 4032 alloy reduces thermal ideal low-density, high-strength material suitable for use in ALUMINUM AUTOMOBILE TECHNOLOGY
expansion and improves abrasion resistance. Forged material aircraft and large structural materials.
for pistons also has other trace additives such as Cu, Ni, and New 8000 series alloys are being developed, such as

Mg, which enhances heat resistance. internationally registered powder metallurgy aluminum alloys,
As the melting temperature of 4043 is low it is used for etc.
welding wire and brazing ller metals. Thanks to the dispersal
of Si particles, 4043 also has a beautiful gray coloring when
anodized.
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COMPANY OVERVIEW - UACJ Corporation

The largest manufacturer of aluminum rolled products

in Japan, UACJ was established by the integration of
Furukawa-Sky Aluminum Corp. and Sumitomo Light
Metal Industries, Ltd.
The UACJ Group operates about 85 production and
sales bases in countries around the world, including
the U.S.A., Thailand, the Czech Republic and China.
The UACJ Research and Development Division
consists of a group of about 300 expert researchers,
the largest number in the world in the rolled aluminum
industry.
Core members of the Automotive Materials Research Dept.

Corporate Name UACJ Corporation
Headquarters Tokyo Sankei Bldg., 1-7-2 Otemachi, Chiyoda-ku, Tokyo 100-0004, Japan
Principal Business Manufacture and sales of aluminum rolled products, extrusions, cast products,
forged products, precision-machined components and copper tubing.
Capital 52,277 million yen (approx 463 million U.S. dollars) The UACJ Research and Development Division
Location: Nagoya, Aichi Pref., Japan