Technical Data Sheet BrazeTec 6488
Standard: BrazeTec Standard
(ISO 3677) (B-Ag64CuInMnNi 730/780))
Nominal composition [wt.-%]:Ag 64; Cu 26; Mn 2; Ni 2; In 6
Permitted impurities max. [wt.-%]:Al 0.001; Bi 0.030; Cd 0.010; P
0.008; Pb 0.025; Si 0.05
Max. impurities [wt.-%]:0.3
Technical data
Melting rangeacc. Measurement:approx. 730 – 780°C
Brazing temperature:approx. 770°C
Density:approx. 9.6 g/cm³
Shear strength acc. DIN EN 12797:approx. 150 - 300 MPa (cemented
carbide/steel)
Operating temp. of brazed joint:approx. -200°C to +200°C (without
loss in strength)
Standard delivery forms*
Wire:1.0 - 1.5 - 2.0 mm Ø
Rods:1.0 - 1.5 - 2.0 mm Ø, 500 mm length
Ribbon:0.1/ 0.2/ 0.3/ 0.4 mm thickness and 70 mm width
Preforms:rings, shaped parts, sections, stamped and shaped parts,
shims, discs, perforated plates
*Other delivery forms upon request
Applications
BrazeTec 6488 is a low melting silver based brazing alloy with
excellent flow characteristics. The brazing
alloy is suitable for brazing of cemented carbides and materials
which are difficult to wet, such as tungsten, molybdenum, tantalum and
chromium. The reachable strength of the joint depends from the parent metals.
BrazeTec 6488 will be used especially if parts are going to get a
vacuum coating as e.g. TiN and therefore
Zn-containing brazing alloys are not suitable.
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