FONTARGEN A/AF 314

FONTARGEN A 312 F3-layer-silverfoil cadmiumfreeEN ISO 3677: B-Ag 49 Zn Cu Mn Ni – 680/705Composition, typical analysis (% w/w):Ag Zn Ni Mn Cu49 20,5 0,5 2,5 27,5Composition refers to the different solder coatsMechanical and physical properties:Working temperature: 690°CMelting range: 680 – 705°CSpecific gravity:9,0 g/cm³Shear strength:150 – 300 N/mm²(depends on Co-content of metal)Elongation: 35 %Characteristics / Applications:Copper foil coated with silver solder on both sides for joints of hard metals and carriersteel. The foil is build-up with a ratio 1:2:1. The copper, which does not melt duringbrazing, relieves the stress that occurs during brazing due to the difference in coefficientsof expansion of the hard metal layer and the carrier steel. Compared to A 324, A 312 Fhas a lower manganese- and nickel content.Heat sources:Acetylene torch, induction and resistance heatingFlux:F 300 – Series, particularly recommendable: F 300 HFSAvailability:Bare Coatedrods rodsWire Foil Preforms Powder Paste07/08/SR/041