A.7.3. Soft Solder, Silver-loaded (Space Quality)

PRODUCT

Type

Metal Alloy; Wire, Bar and Flux-cored Wire

Chemical Composition

62% Sn, 2% Ag, Rem. Pb

Manufacturer

JL Goslar GmbH

Postfach 2129,

D-38611 Goslar

Deutschland

Tel: +49 (0) 5321 / 754-332

Fax: +49 (0) 5321 / 754-333

Email: h.walk@jlgoslar.de

www.jlgoslar.de

EXPERIENCE & AVAILABILITY

Development Status

Commercial Product

Cost Range

Low

Lot Reproducibility

ECSS-Q-70-08 / 1999: 62 Tin Silver-loaded Solder,

EN 29453 / 1993: S-Sn62 Pb36 Ag2

Space Experience

Good

GENERAL PROPERTIES (Physical, Mechanical, Thermal, Electrical, Optical)

Nature

Typical Value

Remarks

Specific Gravity

8.5

@ Room Temperature

Ultimate Tensile Strength

63 MPa

@ Room Temperature

Proof Stress (0.2%)

52 MPa

@ Room Temperature

Elongation at Break

46%

@ Room Temperature

Thermal Expansion Coefficient

16.0 x 10-6 C -1

@ Room Temperature

PROPERTIES RELEVANT TO SPACE USE

Nature

Typical Value

Type of Test

Temperature Range

Suitable for extensive periods at +80C or short periods to a maximum of +120C.

 

SPECIAL RECOMMENDATIONS

          Not generally recommended for spacecraft use. Only used to prevent scavenging (dissolution) effect when soldering to silver-plated surface (e.g. silver plated or painted components, silver wire, etc.).