Brazing Foils
Silver and copper phosporus brazing foil strips and cuts. Our silver and copper phosphorus brazing foils have a high quality surface with thickness tolerances below the standard requirements.
The use of silver foil for joining tungsten carbides to steel is very common. Especially manganese and nickel containing alloys are very popular due to their positive wetting and strength properties, e.g. in the saw blade industry.
Many of our customers are using the advantages of our A 338 F, which is a nickel and manganese containing foil according to ISO 3677 standard. That foil has comparable properties in terms of melting range, strength and wetting combined with a lower silver content. It is a common alternative for the standard A 324 F.
Fontargen Brazing is involved in numerous R&D projects worldwide as well as in partnerships with companies in the tooling industry. Fontargen Brazing offers the essential technical support to develop a technical process optimization in collaboration with the customer. We provide our knowledge in the selection of the perfect brazing filler metal and support brazing specialists with the ideal application.
Fontargen Brazing provides the following standard alloys in customized sizes:
Copper Based Filler Metals
| Product Name | ISO 17672 | ISO 3677 | AWS 5.8 | Melting range (°C) | Melting range (°F) | Characteristics | Typical applications |
|---|---|---|---|---|---|---|---|
| A 101 F | Cu 773 | B-Cu48ZnNi(Si)-890/920 | RBCuZn-D | 890 - 920 | 1634 - 1688 | for ductile joints and high tensile strength, | Brazing tungsten carbides and high-speed steel, hardening after brazing possible, auger bits, bits for road mills |
| A 210 F | Cu 470a | B-Cu60Zn(Si)-875/895 | 875 - 895 | 1607 - 1643 | widely used for repair purpose | tools for tunneling for examples scraper, agricultural tools | |
| A 205 F | B-Cu86MnNi-970/990 | 970 - 990 | 1778 - 1814 | good wetting at tungsten carbides, high strength in combination with good ductility | carbide tipped drills, coal mining drills, cutter | ||
| A 206 F | B-Cu87MnCo-980/1030 | 980 - 1030 | 1796 - 1886 | good gap filling, heat resisting brazed joints because of Co -contend | mining tools and road drill bits |
| A 101 F | Cu 773 | B-Cu48ZnNi(Si)-890/920 | RBCuZn-D | 890 - 920 | 1634 - 1688 | for ductile joints and high tensile strength, | Brazing tungsten carbides and high-speed steel, hardening after brazing possible, auger bits, bits for road mills |
| A 210 F | Cu 470a | B-Cu60Zn(Si)-875/895 | 875 - 895 | 1607 - 1643 | widely used for repair purpose | tools for tunneling for examples scraper, agricultural tools | |
| A 205 F | B-Cu86MnNi-970/990 | 970 - 990 | 1778 - 1814 | good wetting at tungsten carbides, high strength in combination with good ductility | carbide tipped drills, coal mining drills, cutter | ||
| A 206 F | B-Cu87MnCo-980/1030 | 980 - 1030 | 1796 - 1886 | good gap filling, heat resisting brazed joints because of Co -contend | mining tools and road drill bits |
Silver Filler Metals
| Product Name | ISO 17672 | ISO 3677 | AWS 5.8 | Melting range (°C) | Melting range (°F) | Characteristics | Typical applications |
|---|---|---|---|---|---|---|---|
| A 324 F | Ag 230 | B-Ag49ZnCuMnNi-680-705 | BAg-22 | 680 - 705 | 1260 - 1301 | very good wetting and flow at tungsten carbides because of Mn and Ni contend, high strength - τ aB > 200 N/mm2 possible | widely used standard filler metal in brazing tungsten carbides for example conveyor belt scraper, auger bits, crushing teeth, knives |
| A 338 F | B-Ag38CuZnMnNi-680/700 | 680 - 700 | 1265 - 1292 | lower silver contend as A 324 with comparable property's | alternative for A 324 | ||
| A 350 F | Ag 450 | B-Ag50ZnCuNi-660/705 | BAg-24 | 660 - 705 | 1220 - 1305 | very fluid filler metal for close fit up, good wetting at carbides | carbide and diamond tools |
| A 347 F | Ag156 | B-Ag56ZnCuSn-620/655 | BAg-7 | 620 - 655 | 1148 - 1211 | low melting point, medium viscosity | E-motors and generators where high strength and good ductility is necessary |
| A 314 F | Ag 155 | B-Ag55ZnCuSn-630/660 | 630 - 660 | 1166 - 1220 | molten filler metal low viscosity very good flow , low melting point | diamond bits with carbide surface |
| A 324 F | Ag 230 | B-Ag49ZnCuMnNi-680-705 | BAg-22 | 680 - 705 | 1260 - 1301 | very good wetting and flow at tungsten carbides because of Mn and Ni contend, high strength - τ aB > 200 N/mm2 possible | widely used standard filler metal in brazing tungsten carbides for example conveyor belt scraper, auger bits, crushing teeth, knives |
| A 338 F | B-Ag38CuZnMnNi-680/700 | 680 - 700 | 1265 - 1292 | lower silver contend as A 324 with comparable property's | alternative for A 324 | ||
| A 350 F | Ag 450 | B-Ag50ZnCuNi-660/705 | BAg-24 | 660 - 705 | 1220 - 1305 | very fluid filler metal for close fit up, good wetting at carbides | carbide and diamond tools |
| A 347 F | Ag156 | B-Ag56ZnCuSn-620/655 | BAg-7 | 620 - 655 | 1148 - 1211 | low melting point, medium viscosity | E-motors and generators where high strength and good ductility is necessary |
| A 314 F | Ag 155 | B-Ag55ZnCuSn-630/660 | 630 - 660 | 1166 - 1220 | molten filler metal low viscosity very good flow , low melting point | diamond bits with carbide surface | |
| A 356 F | B-Ag63CuInMnNi-730/780 | 680- 705 | 1256 - 1301 | Zn- free alloy, good wetting at tungsten carbides used where zinc fumes in the furnaces not tolerable | for brazed tools which are coated by vacuum process after for example TiN | ||
| A 320 F | Ag 145 | B-Ag45CuZnSn-640/680 | B-Ag-36 | 640-680 | 1184-1256 | medium viscosity, good gap filling | universal brazing alloy - Cu alloys, steel |
Tri Foil
| Product Name | ISO 3677 | Melting range (C°) | Melting range (F°) | Characteristics | Typical applications |
|---|---|---|---|---|---|
| A 312 F | B-AgZnCuMnNi-680/705 | 680 -705 | 1260 - 1301 | tri metal foil, widely used, attenuate stress inside the brazed joins | circular saw blades, cutter |
| A 312 F | B-AgZnCuMnNi-680/705 | 680 -705 | 1260 - 1301 | tri metal foil, widely used, attenuate stress inside the brazed joins | circular saw blades, cutter |
Copper Phosphor
| Product Name | ISO 17672 | ISO 3677 | AWS 5.8 | Melting range (°C) | Melting range (°F) | Characteristics | Typical applications |
|---|---|---|---|---|---|---|---|
| A 3015 F | CuP 284 | B-Cu80AgP-645/800 | BCuP-5 | 645 - 800 | 1193 - 1472 | Thin fluid copper-phosphorus alloy with high silver content and high ductility,even at low temperatures | gap brazing of copper and copper |
| A 3015 FS | CuP 284 | B-Cu80AgP-645/800 | BCuP-5 | 645 - 800 | 1193 - 1472 | surface meets the requirements for laser processing | laser brazing |
| A 3015 F | CuP 284 | B-Cu80AgP-645/800 | BCuP-5 | 645 - 800 | 1193 - 1472 | Thin fluid copper-phosphorus alloy with high silver content and high ductility,even at low temperatures | gap brazing of copper and copper |
| A 3015 FS | CuP 284 | B-Cu80AgP-645/800 | BCuP-5 | 645 - 800 | 1193 - 1472 | surface meets the requirements for laser processing | laser brazing |