Most 4000 series alloys are used for welding and brazing filler materials where they are remelted. Thermal treatment causes silicon to coalesce and spheroidize while the insoluble iron-rich phase is not altered. 4000 series alloys are also used as the clad alloy component of brazing sheet.
Flux Brazing Stock Items
| Stock |
#21 |
#22 |
| .020″ x 36″ x 72.00 |
X |
X |
| .032″ x 36″ x 72.00 |
X |
X |
| .040″ x 36″ x 72.00 |
X |
X |
| .050″ x 36″ x 72.00 |
X |
X |
MULTICLAD™ Stock Items
| Multiclad |
.016″ x 36″ x 72″ |
| Multiclad |
.020″ x 36″ x 72″ |
| Multiclad |
.032″ x 36″ x 72″ |
| Multiclad |
.040″ x 36″ x 72″ |
| Multiclad |
.050″ x 36″ x 72″ |
| Multiclad |
4000 Series Cladding
3003 Interlayer
6000 Series Core |
| Braze Sheet Items |
No. of Sides Clad |
Core Alloy |
Cladding Alloy |
Nominal Cladding Thickness Per Side (Percent of Composite Thickness) |
Optimal Brazing Range |
| #11 |
1 |
3003 |
4343 |
10% for .063 and less, 5% for .064 and more |
1100-1140/593-616 |
| #12 |
2 |
3003 |
4343 |
10% for .063 and less, 5% for .064 and more |
1100-1140/593-616 |
| #21 |
1 |
6951-F |
4343 |
10% for .090 and less, 5% for .091 and more |
1100-1140/593-616 |
| #22 |
2 |
6951-F |
4343 |
10% for .090 and less, 5% for .091 and more |
1100-1140/593-616 |
| #23 |
1 |
6951 |
4045 |
10% for .090 and less, 5% for .091 and more |
1090-1120/588-604 |
| #24 |
2 |
6951 |
4045 |
10% for .090 and less, 5% for .091 and more |
1090-1120/588-604 |
| #33 |
1 |
6951 |
4044 |
10% for all thickness |
1100-1135/539-613 |
| #34 |
2 |
6951 |
4044 |
10% for all thickness |
1100-1135/539-613 |
| #44 |
2 |
6951 |
4044/7072 |
15% 4044 one side, 5% 7072 other, for all thickness |
1100-1135/539-613 |
Foil Stock
| Stock |
6951 |
4047 |
No. 12 |
4004 |
4045 |
| .001 |
|
X |
|
X |
X |
| .002 |
|
X |
|
X |
X |
| .003 |
X |
X |
|
X |
X |
| .004 |
X |
X |
|
X |
X |
| .005 |
X |
X |
|
X |
X |
| .006 |
X |
X |
X |
|
X |
| .008 |
X |
X |
X |
|
X |
| .010 |
X |
X |
X |
|
X |
| .012 |
X |
X |
X |
|
|
| .015 |
|
X |
X |
|
X |
