Alloy Group

ALLOY Designation

Chemical Composition Limits(wt %)

Cu

Si

Fe

Mn

Mg

Zn

Al

1050

0.05

0.25

0.40

0.05

0.05

0.05

Al-Cu

2011

5.0~.6.0

0.04

0.70

-

-

0.30

2024

3.8~4.9

0.5

0.5

0.3~0.9

1.2~1.8

0.25

Al-Mn

3003

0.05~0.20

0.6

0.7

1.0~1.5

-

0.10

Al-Mg

5052

0.10

0.25

0.40

0.10

2.2~2.8

0.10

5056

0.10

0.25

0.40

0.05~0.20

4.5~5.6

0.10

Al-Mg-Si

6061

0.15~0.40

0.4~0.8

0.7

0.8~1.2

0.8~1.2

0.25

6063

0.10

0.2~0.6

0.35

0.45~0.9

0.45~0.9

0.10

Al-Zn

7075

1.2~2.0

0.4

0.5

2.1~2.9

2.1~2.9

5.1~6.1

Chemical Composition Limits(wt %)

Alloy

Group

Cr

Ti

PB,BI

Al

-

-

-

99.50 min

Al

-

-

0.2~0.6 each

rem

Al-Cu

0.10

0.15

-

rem

-

-

-

rem

Al-Mn

0.15~0.35

-

-

rem

Al-Mg

0.05~0.20

-

-

rem

0.04~0.35

0.15

-

rem

Al-Mg-Si

0.10

0.10

-

rem

0.18~0.28

0.20

-

rem

Al-Zn

Others

Typical

Temper

Mechanical Properties

Typical

Temper

Weldabilty

Machina-

Bility

Corrosion

Resistance

Conductivity

Typical

Applications

UTS

YTS

ELONG

ATION

-

H14

11

10

10

2.71

A

D

A

A

Chemical equipment

-

T3

38

30

12

2.83

D

A

D

D

Ski stock

Bicycle parts

Screw machine products

Truch frame

Aircraft structrue

-

T4

49

37

10

2.78

C

B

D

D

-

H14

15

14

8-16

2.73

A

D

A

B

Drum for Cop

M/C

Cooking utensils, Chemical equipment

-

H14

H34

26

21

10

2.68

A

C

A

D

Optical instrument

Architectural

Welded pressure vessels

Hydraulic tubes

Transportation equipment

-

H12

H32

31

15

35

2.64

A

C

A

D

-

T6

31

28

12

2.70

A

C

B

C

Roller for

Copy M/C

Pipe for brush

Cutter

Hydraulic tubes

Transportation equipment

-

T5

19

14

22

2.69

A

C

A

A

-

T6

55

49

6

2.80

D

B

C

C

Hight strength structure aircaft structure Bat

RATING

WELDABILITY

MACHINABILTY

CORROSION RESISTANCE

CONDUCTMTY

(%IACS)

A

READILY WELDABLE

EXCELLENT

SUPERIOR

55-63

B

WELDABLE IN MOST APPLICATIONS

GOOD-TO-EXCELLENT

GOOD

50-55

C

LIMITED WELDABILITY

GOOD

COMMON

40-50

D

WELDING NOT RECOMMENDED

NOT GOOD

BAD

30-40