Castolin 181 - Cadmium-free silver solder

Castolin 181 

Cadmium-free, overheating-resistant silver solder. Similar in color to brass. For high-strength, crack-resistant joints. Similar in color to brass. Operating temperatures from approx. - 200 °C to 200 °C.

Technical data
Brazing alloy
ISO 17672: ~ AG 220
EN 1044: ~ AG 206
DIN 8513: ~ L-Ag20

Flux content*
EN 1045: FH 10
DIN 8511: F-SH1

Melting interval [°C]: 690 - 810
Soldering temperature [°C]: 810
Density [g/cm3]: 8.7
* if flux-coated/flux-containing

Applications
For gap and joint brazing, e.g: Unalloyed and low-alloy steels (structural steels, case-hardening, heat-treatable and nitriding steels), high-alloy steels (stainless CrNi steels), nickel, nickel alloys, copper and copper alloys, aluminum-bronze (CuAl alloys), malleable cast iron (GTW) and carbide.

Typical application examples are:
Bronze and brass fittings, band saw blades, electrical contacts, hard metal tools, soldering of diamonds, cable lugs, current collectors, galvanized earthing rails, connections of resistance elements, refrigeration technology, brass instruments, chandeliers and metal goods.

Processing instructions
Clean soldering areas. Round off edges. Coat soldering surfaces with flux. Heat the tip of the soldering rod and dip it into the flux. Preheat the workpiece widely and continuously. Do not overheat. Remove corrosive flux residues.
Heat sources: Flame soldering (acetylene; neutral to slightly reducing), gas torch, oven (with and without shielding gas), HF induction, resistance heating.

Delivery form
Castolin 181: bare filler rod
Castolin 181 F: flux-coated solder rod