Fine gold 999,9 |
751 g |
+ Master alloy |
249 g A118/ Y |
Colour |
Deep yellow (3N) |
Further information
Order-No. |
2620100108 |
Designation |
A118/ Y , for 18K yellow |
Technical data
Melting range |
880°C - 850°C |
Density |
15,2 g/cm³ |
Hardness |
as cast: 130 HV |
Application |
jewellery casting and continuous casting as sheet, wire, tube |
Processing
Casting |
suitable for vacuum casting and centrifugal casting as well as for continuous casting of tube, strip and wire |
Casting temperature |
1040°C - 1060°C |
Flask temp. |
620°C - 640°C |
Investment |
plaster bonded |
Quenching |
in 80°C hot water after 20- 25 minutes |
Working |
Material can be deformed max. 70%, then it must be annealed. Only roll a little at a time. Roll the same thickness several times if necessary. |
Heat treatment
Annealing |
650°C / 30 min, and then quench in hot water |
Hardening |
400°C - 440°C / 60 min, slow cool in air |
Brazing |
WIELAND brazing alloys 1630H (810°C), |
Flux |
Fluoron |
Pickling agent |
sulphuric acid (H2SO4) 10 % |