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5083

5456

5086

5056

511.0 512.0

513.0 514.0

5154 5254

5454

6005 6060

6063 6101

6151 6351

6951

6061

6070

7005 7021

7039 7046

710.0 711.0

413.0 443.0

444.0 356.0

A356.0 A357.0

359.0

319.0 333.0

354.0 355.0

C355.0 380.0

W S D C T M W S D C T M W S D C T M W S D C T M W S D C T M W S D C T M W S D C T M W S D C T M W S D C T M

2319*

A C B A A A C B A A A C B A A A B A A A C B A A C

4043/4047*

B B A B A B B A B A B B A B A B B A B A B B A A A A B B A A A A

4009*

A A B B A A A B B A A A B A A B A A B B A B

4145*

A A A A

B A A A A B A A A A B A A A A

5554

B B A A A B B A A A B B A A A A B A A A B 4043/4047*

A A B B A A A B B A A A B B A A A B B A B

4145*

A A A A A A

4008*

5554

A D C B A B D C B A

4043/4047*

4145*

A A B A A A A B A A A A B A A A A B A A A A B A A A A B A A A A B A A

5183

A B A A A A B A A A A B A A A A B A A A A B A A A A B A A A A B A A A

5356

B C A A A B C A A A A B C A A A A B C A A A A B C A A A A

5554

A A B A A A A B A A A A B A A A A B A A A A B A A A A B A A A A B A A

5556

B C A A A B C A A A B C A A A B C A A A B C A A A

5654

A D C A A A C C A A

4043/4047*

4145*

A D C A A A C C A A

4643*

A A B A A A A B A A A A B B B A A B B B B A B B A B A B B B

5183

A B A A A A B A A A A B A B A A B A B A B B A B A B B A B A

5356

B C A B A B C A B A B C A A B B C A A A B C C A B B A C B A B B B

5554

A A B A A A A B A A A A B B B A A B B B B A B B A B A B B B

5556

B C A B A B C A B A B C A A A B C A A A C C A B B C B A B B

5654

A D C A A

4043/4047*

4145*

A D C A A

4643*

A A B A A A A B A A B A B B A B A B B A B A B B A

5183

A B A A A A B A A A B B A B A B B A B A B B A B A

5356

B C A B A B C A B A C C A A A C C A A A A C C A B B A

5554

A A B A A A A B A A B A B B A B A B B A B A B B A

5556

B C A B A B C A B A C C A A B C C A B B C C A B B

5654

A A B B A A A B B A A A B B A A A B B A

5183

A B A B A A B A B A A B A B A A B A B A

5356

C C A A A C C A A A B C A A A B C A A A A

5554

A A B B A A A B B A A A B B A A A B B A

5556

B C A B A B C A B A B C A B A B C A B A

5654

A A B A A A A B A A A A B B B

5183

A B A A A A B A A A A B A B A

5356

B C A A A B C A A A B C A A B

5554

A A B A A A A B A A A A B B A

5556

B C A A B B C A A B B C A A A

5654

A A B A A A A B A A

5183

A B A A A A B A A A

5356

5554

A A B A A A A B A A

5556

5654

A (3) B A A

5183

A A A A

5356

5554

A A B A A

5556

5654

4043/4047*

5183

5356

5554

5556

5654

SYMBOL

CHARACTERISTIC

W

Ease of welding

Relative freedom from weld cracking.

S

Strength of welded joint

(as-welded condition)

Rating applies particularly to fillet welds.

All rods & electrodes rated should develop presently

specified minimum strengths for butt welds.

D

Ductility

Rating is based upon the free bend elongation

of the weld.

C

Corrosion resistance

in continuous or alternate

immersion in fresh or salt water.

T

Recommended for service at

sustained temperatures

above

150°F (65.5°C).

M

Color match

after anodizing.

A, B, C, & D

are relative ratings in decreasing

order of merit. The ratings have relative

meaning only within a given block.

Aluminum Filler Alloy Chart

How To Use This Chart

1. Select base alloys to be joined (one from the side

blue column, the other from the top blue row).

2. Find the block where the column and row intersect.

3. This block contains horizontal rows of letters

(A, B, C or D) representative of the alloy directly across

from them in the filler alloy box at the end of each row.

The letters in each line give the A-to-D rating of the

characteristics listed at the top of each column – W,

S, D, C, T and M (see Legend at right for explanation

of each letter).

4. Analyze the weld characteristics afforded by each

filler alloy. You will find that you can “trade off” one

characteristic for another until you find the filler that

best meets your needs.

Example

If joining base alloys 6061 and 5086; first find the box

where the 6061 row and the 5086 column intersect.

Then notice that there are no ratings for filler alloys

4043/4047, 4145 or 4643 – this means they are not

usually recommended for this base combination.

Filler alloy 5356 has an “A” rating for ductility, but a

“B” rating for strength. However, alloy 5556 has an

“A” rating for strength, but a “B” rating for ductility.

Therefore, it must be decided which attribute has

the highest priority.

*NOTES:

(1) Combinations having no rating are not usually recommended.

(2) The following filler alloys are heat-treatable and can

produce higher strength weldments after postweld solution

heat treatment and aging: 206, 357, 2319, 4008, 4009,

4145, and 4643.

(3) An “A” rating for alloy 5083 to 5083 and 5083 to 5456.

No rating for alloy 5456 to 5456.

(4) 4047 can be used in lieu of 4043. Alloy 4047 provides

increased fluidity for welding leak-tight joints, minimizes

solidification cracking, and has a slightly higher fillet weld

shear strength.

ALC-10016C 03/15