Sn99,3Cu0,7

Lead-free solder alloy in the form of solder wires, solder bars and rods for use in soldering aggregates.

Alloy designation in accordance with ISO 9453:2014:
Sn99,3Cu0,7 (401)
Product type: Solder bars and rods, Solder Wire

1. General characteristics

The solder was produced in the first smelt of tin and copper. The use of a continuous casting process ensures minimization of the generation of oxides in the solder. As a result, the phenomenon of the formation of dross in the soldering process is significantly reduced. The composition of the solder complies with the ISO 9453:2014 standard. The solder alloy intended for mechanized soldering in electronics, electrical engineering and other industrial applications where meeting the requirements of the RoHS2 Directive is required.

2. Chemical compositions, mass fraction in %

Sn	Cu	Bi	Sb	Ag	Cd	Au	In	Pb	Al	As	Fe	Ni	Zn
rest	0,50 - 0,90	max 0,10	max 0,10	max 0,10	max 0,002	max 0,05	max 0,10	max 0,07	max 0,001	max 0,03	max 0,02	max 0,01	max 0,001

3. Physical characteristics

Melting point: (solidus / liquidus)	227°C
Density	7,31 g/cm³
Electrical conductivity	0,126 μΩ•m
Thermal conductivity	66 W/m•K
Tensile strength	300 kgf/cm²
Elongation at break	21%
Hardness	9 HB
Suggested operating temperatures	250 - 400°C

4. Other information

Available diameters

• 0,50 • 0,80 • 1,00 • 1,20 • 1,50 • 2,00 • 3,00 mm

other on request

Available cross-sections and sizes

cross-sections	sizes [mm]	cartons
Bar, rectangle	20x40x350 mm	13 pcs. / 26 kg
Bar, rectangle	10x40x347 mm	25 pcs. / 25 kg
Bar, square	20x20x345 mm	20 pcs. /20 kg
Rod, triangle	12x12x400 mm	15 kg
Rod, semioval	8x12x420 mm	15 kg

other on request

Expiration date

not applicable

Label

The product is marked by a type of alloy or acc. to customer requirements
Cartons, reels marked with a type of alloy, sizes, lot number and net weight.

Storage

Keep away from strong oxidizing agents, acids and alkaline agents. The recommended humidity level is 20-60% and temperature is 5 – 20 °C