Sn96Ag4 is a standard soft solder alloy for the EMS area, which consists of Tin and Silver. This soft solder alloy is known in the technical field as SAC400 or SA4 and is one of the most common consumable solders in the field of PCB and cable assembly. Use as add-on solder for wave and selective soldering systems.
Delivery forms
Ingots with and without suspension
Rods Typ 3K (triangular) & 4K (quadrangular)
Massive solder and flux cored solder wires
Pellets (hemisphere sections)
Sticks® (Cylinders)
Other formats or products not listed here may be possible after consultation.
Applications
Lead-free electronic solder, which was primarily developed for general use in the following applications and soldering processes.
Wave and Selective soldering systems
Iron soldering systems
Laser soldering systems
Plasma and evaporation systems
Hand soldering
Dip tinning
Products
Pellets made from Sn96Ag4 (SAC400)
4836
molded
none
without
Pellets
Pellets
10 mm
27 mm
9145
molded
none
without
Pellets
Pellets
12 mm
25 mm
9144
molded
none
without
Pellets
Pellets
6 mm
18 mm
The products shown are only a selection from our product range. Please contact us for your desired configuration of Pellets from Sn96Ag4 (SAC400).
Solid solder wire made from Sn96Ag4 (SAC400)
4727
3 mm
4,000 g
no
5112
2 mm
4,000 g
no
9241
2.5 mm
4,000 g
no
The products shown are only a selection from our product range. Please contact us for your desired configuration of Solid solder wire from Sn96Ag4 (SAC400).
Ingots made from Sn96Ag4 (SAC400)
1013
molded
closed
with
Ingot Type G
Ingots
485 mm
50 mm
20 mm
9116
molded
closed
with
Ingots Type O
Ingots
485 mm
50 mm
20 mm
The products shown are only a selection from our product range. Please contact us for your desired configuration of Ingots from Sn96Ag4 (SAC400).
Sticks made from Sn96Ag4 (SAC400)
1108
molded
none
without
square cut
Sticks
340 mm
30 mm
20 mm
1300
molded
none
without
triangular
Sticks
400 mm
10 mm
10 mm
The products shown are only a selection from our product range. Please contact us for your desired configuration of Sticks from Sn96Ag4 (SAC400).
Small Sticks made from Sn96Ag4 (SAC400)
9177
pressed
none
without
Sticks
Small Sticks
12 mm
8 mm
The products shown are only a selection from our product range. Please contact us for your desired configuration of Small Sticks from Sn96Ag4 (SAC400).
Material properties
| Melting temperature °C | 221-226 |
| Solder wave temperature °C | ≥ 265 |
| Density g/cm³ | 7,5 |
| Hardness HB | 15 |
| Tensile strength N/mm² | n.s. |
| Stretching % | n.s. |
| Specific heat of fusion J/g | n.s. |
| Electrical conductivity µΩcm | 13 |
This alloy can be stored for at least 48 months if properly stored in a clean and dry environment. For massive formats, further processing is usually possible after the specified storage period has expired, but should be technically checked and approved in advance.
Chemical composition in accordance with the factory standard
(Data in percent by weight)
| Element | Formular | Composition |
|---|---|---|
| Tin | Sn | Residue |
| Silver | Ag | 3.5-4.0 |
| Antimony | Sb | < 0.1 |
| Bismuth | Bi | < 0.1 |
| Indium | In | < 0.1 |
| Lead | Pb | < 0.07 |
| Gold | Au | < 0.05 |
| Copper | Cu | < 0.05 |
| Arsenic | As | < 0.03 |
| Iron | Fe | < 0.02 |
| Nickel | Ni | < 0.01 |
| Cadmium | Cd | < 0.002 |
| Aluminium | Al | < 0.001 |
| Zinc | Zn | < 0.001 |
The data given in the table are based on internal material specification, which refers to the typical standardization data of ISO 9453.
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