Product List
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Silver brazing filler metal
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Silver brazing flux cored wire (TBW)
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Silver brazing flux coated rod
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Phosphorus Copper brazing filler metal
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Pure Copper brazing filler metal
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Brass brazing filler metal
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Phosphorus Brass brazing filler metal
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Aluminum brazing filler metal
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Aluminum brazing flux sintered wire (TBM)
Silver brazing filler metal (Cadmium free)
In recent years, due to health and safety concerns, cadmium free silver brazing filler metal is commonly used.
Through various developments in welding technology, the qualities of cadmium free silver brazing filler metal have been greatly improved.
| Part number | Chemical Composition (%) | Operating Temperature ℃ (Guide) | JIS Name | Applications / Features | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Ag | Cu | Zn | Sn | In | Ni | Solidus | Liquidus | Brazing | |||
| Meta-flo 302S | 35 | 36 | 27 | 2 | - | - | 655 | 745 | 745～845 | - | •Silver Brazing filler metal with fluidity. |
| Meta-flo 304 | 40 | 30 | 28 | - | - | 2 | 670 | 780 | 780～900 | BAg-4 |
•Good mechanical properties and corrosion resistance. •Inhibits corrosion in contact with stainless steel. |
| Meta-flo 305 | 45 | 30 | 25 | - | - | - | 665 | 745 | 745～845 | BAg-5 |
•Cadmium free, suitable for electrical equipment and food industry. •Suitable for non-uniformity and wide gaps. |
| Meta-flo 306 | 50 | 34 | 16 | - | - | - | 690 | 775 | 775～870 | BAg-6 |
•Suitable for corner-wall brazing due to its wide melting temperature range. •Good physical properties at very low temperatures. |
| Meta-flo 307 | 56 | 22 | 17 | 5 | - | - | 620 | 650 | 650～760 | BAg-7 |
•Has the lowest melting point amongst Cadmium-free materials. •Excellent flowability, beautiful appearance, good corrosion resistance. |
| Meta-flo 307B | 48 | 28 | 19 | 5 | - | - | 640 | 690 | 690～800 | - |
•More economical than 307 as it uses less silver. •Good flowability. |
| Meta-flo 308 | 72 | 28 | - | - | - | - | 780 | 780 | 780～900 | BAg-8 |
•Vacuum resistant and doesn’t contain components that evaporate (Zinc, Cadmium). •Doesn’t require flux in atmosphere or vacuum furnaces. |
| Meta-flo 315 | 40 | 30 | 30 | - | - | - | 670 | 730 | 730～830 | - |
•Cadmium-free medium-grade silver brazing filler metal. •Soft, good corrosion resistance. |
| Meta-flo 317 | 38 | 30 | 30 | - | 2 | - | 660 | 725 | 725～830 | - |
•Relatively low melting point and excellent flowability. •Good corrosion resistance. |
| Meta-flo 322 | 30 | 38 | 32 | - | - | - | 675 | 765 | 765～870 | BAg-20 |
•An economical low-silver brazing filler metal. •Good flowability. |
| Meta-flo 450E | 50 | 20 | 28 | - | - | 2 | 660 | 705 | 705～800 | BAg-24 |
•Low melting point, good flowability. •The added Nickel makes it suitable for stainless and carbide. |
| Meta-flo 450H | 50 | 16 | 26.5 | - | - | Ni3 Mn4.5 |
660 | 690 | 690～790 | - | •Added Nickel and Manganese makes it suitable for diamond tools and carbide. |
| Meta-flo 440H | 40 | 30 | 29 | 1 | - | - | 660 | 715 | 715～815 | - | •Relatively low melting point, good flowability. |
| 50Ag-50Cu | 50 | 50 | - | - | - | - | 780 | 875 | 875～950 | - |
•Vacuum resistant and doesn’t contain evaporating components (Zinc, Cadmium). •More economical than 308. |
- Suitable Base Materials
- Iron-based alloys, stainless steel, copper, copper alloys, nickel, nickel alloys, cemented carbide, cast iron, ceramics, etc.
The basic composition of silver brazing filler metal is silver-copper binary system and silver-copper-zinc ternary system.
The properties change depending on the amount of silver.
Various elements are added to give it special characteristics.
- Nickel: Increases corrosion resistance against stainless steel and wettability against cemented carbide tool steel.
- Tin: Lowers the melting point and improves workability and fluidity.
- Indium: Lowers melting point and improves workability.
- Manganese: Lowers melting point and improves workability.
Silver brazing filler metal (containing Cadmium)
Adding cadmium (Cd) is the most effective way to lower the melting point of brazing filler metal and improve work efficiency by improving the fluidity.
Cadmium is specified as a hazardous substance in the RoHS directive.
| Part number | Chemical Composition (%) | Operating Temperature ℃ (Guide) | JIS Name | Applications / Features | |||||
|---|---|---|---|---|---|---|---|---|---|
| Ag | Cu | Zn | Cd | Solidus | Liquidus | Brazing | |||
| Meta-flo 301 | 45 | 15 | 16 | 24 | 605 | 620 | 620～760 | BAg-1 |
•Lowest melting point among silver brazing filler metals, excellent workability, good corrosion resistance. •Narrow melting temperature range and good penetrability. |
| Meta-flo 301A | 50 | 15.5 | 16.5 | 18 | 625 | 635 | 635～760 | BAg-1A |
•Low melting point, good flowability and corrosion resistance. •Smallest melting temperature range with good penetrability. |
| Meta-flo 302 | 35 | 26 | 21 | 18 | 605 | 700 | 700～845 | BAg-2 |
•Relatively low melting point, good workability. •Suitable for non-uniform gaps due to wide melting temperature range. |
| Meta-flo 311 | 40 | 17 | 17 | 26 | 610 | 640 | 640～760 | - | •Performance is similar to 301 and 301A, and is inexpensive and economical. |
| Meta-flo 312 | 30 | 28 | 21 | 21 | 615 | 705 | 705～800 | - | •Performance is similar to 302, and is inexpensive and economical. |
| Meta-flo 318 | 25 | 35 | 22 | 18 | 615 | 750 | 750～850 | - |
•Low silver and economical. •Suitable for non-uniform gaps due to the wide melting temperature range. |
| Meta-flo 319 | 20 | 40 | 25 | 15 | 615 | 775 | 775～900 | - |
•Low silver and economical. •Suitable for non-uniform gaps due to the wide melting temperature range. |
- Suitable Base Materials
- Iron-based alloys, stainless steel, copper, copper alloys, nickel, nickel alloys, cemented carbide, cast iron, ceramics, etc.
※Cadmium : Lowers melting point and improves workability and fluidity. (Caution: The usage of Cadmium is regulated).
Silver brazing flux-cored wire (TBW)
Silver brazing is possible with flux-filled wires. (Standard Dimensions: 0.6φ～2.0φ)
| Part number | Chemical Composition (%) | Operating Temperature ℃ (Guide) | JIS Name | Applications / Features | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Ag | Cu | Zn | Sn | In | Ni | Solidus | Liquidus | Brazing | |||
| 5040TBW | 40 | 30 | 28 | 2 | - | - | 650 | 710 | 710～810 | - |
•No need to apply flux to brazed parts. The flux used to fill the seamless wire is non-hygroscopic and non-corrosive at room temperature. Ring processing is also possible. |
| 5056TBW | 56 | 22 | 17 | 5 | - | - | 620 | 650 | 650～760 | BAg-7 |
•No need to apply flux to brazed parts. •The flux used to fill the seamless wire is non-hygroscopic and non-corrosive at room temperature. •Ring processing is also possible. |
Silver brazing flux coated rods (Coated silver brazing rods)
Flux coated silver brazing rods can be used for silver brazing. (Core wire 1.5φ×500L [2.55φ×500L including flux coating])
| Part number | Chemical Composition (%) | Operating Temperature ℃ (Guide) | JIS Name | Applications / Features | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Ag | Cu | Zn | Sn | In | Ni | Solidus | Liquidus | Brazing | |||
| 5056FC | 56 | 22 | 17 | 5 | - | - | 620 | 650 | 650～760 | BAg-7 |
•Flux-coated silver brazing rods for manual insertion. •Can be used for brazing in the field. |
Copper brazing filler metal
Pure copper has very good wetting properties. Due to its high melting point, it is mainly used in vacuum or reducing atmosphere.
| Part number | Chemical Composition (%) | Operating Temperature ℃ (Guide) | JIS Name | Applications / Features | |||
|---|---|---|---|---|---|---|---|
| Cu | Sn | Solidus | Liquidus | Brazing | |||
| OFCU | Over 99.96 | - | 1083 | 1083 | 1095～1150 | C1020 | •High quality oxygen-free copper, mainly used in furnace brazing. |
| Copper Paste | Metal Component Copper 100 | - | 1083 | 1083 | 1095～1150 | - | •Paste brazing material made by mixing organic solvent and copper powder. |
| Copper Paste | Metal Component 80～85 | 15～20 | 800～ | ～950 | 950～1000 | - | •Paste brazing material with lowered melting point by adding tin (Sn). |
- Suitable Base Materials
- Iron-based alloys, stainless steel, etc.
Phosphorus Copper brazing filler metal
Phosphorus-copper brazing is characterized by the fact that phosphorus (P) acts as a flux (reducing copper oxides), so copper can be brazed without flux.
Flux is required for copper alloys.
| Part number | Chemical Composition (%) | Operating Temperature ℃ (Guide) | JIS Name | Applications / Features | |||||
|---|---|---|---|---|---|---|---|---|---|
| P | Ag | Cu | Sn | Solidus | Liquidus | Brazing | |||
| Meta-flo 402 | 7.1 | - | RMNG | - | 710 | 795 | 735～845 | BCuP-2 | •Economical as it contains no silver. |
| Meta-flo 403 | 6.2 | 5 | RMNG | - | 645 | 815 | 720～815 | BCuP-3 |
•Silver-containing phosphor bronze brazing filler metal. •The higher the silver content, the greater the ductility is. This improves processing, mechanical properties and corrosion resistance. |
| Meta-flo 404 | 7.2 | 6 | RMNG | - | 645 | 720 | 690～790 | BCuP-4 | |
| Meta-flo 405 | 5 | 15 | RMNG | - | 645 | 800 | 705～815 | BCuP-5 | |
| Meta-flo 406 | 7 | 2 | RMNG | - | 645 | 790 | 730～815 | BCuP-6 | |
| Meta-flo 412 | 6.5～7.5 | - | RMNG | 7 | 650 | 700 | 690～790 | - | •Adding Tin lowers the melting point and improves workability. |
| Meta-flo 416 | 7 | 4 | RMNG | 4 | 625 | 675 | 650～750 | - |
•Adding Tin lowers the melting point and improves workability. •Good mechanical properties and corrosion resistance. |
- Suitable Base Materials
- Copper, Copper Allow
※In order to improve the brazing finish and prevent oxidation of the base metal, we recommend using vapor flux.
Brass brazing filler metal
An economical and easy to work with alloy of copper and zinc.
| Part number | Chemical Composition (%) | Operating Temperature ℃ (Guide) | JIS Name | Applications / Features | |||||
|---|---|---|---|---|---|---|---|---|---|
| Cu | Zn | Ni | Si | Solidus | Liquidus | Brazing | |||
| Meta-flo 203 | 62.25 | RMNG | 0.225 | 0.225 | 900 | 900 | 900～955 | - | •Good brazing performance with iron-based alloys. |
- Suitable Base Materials
- Iron-based alloys, cast iron, copper, copper alloys, nickel, etc.
Phosphor bronze brazing filler metal
Phosphorus (P) is added to Copper-Tin brazing. Good corrosion resistance and good flowability.
| Part number | Chemical Composition (%) | Operating Temperature ℃ (Guide) | JIS Name | Applications / Features | ||||
|---|---|---|---|---|---|---|---|---|
| Cu | Sn | P | Solidus | Liquidus | Brazing | |||
| PBW-2 | RMNG | 6 | 0.25 | 910 | 1045 | 1050～1090 | C5191 （BCu-3） |
•BCu-3 Equivalent. •Mainly used in furnace brazing. |
| PBW-3 | RMNG | 8 | 0.25 | 880 | 1030 | 1040～1080 | C5212 |
•Lower melting point than BCu-3. •Mainly used in furnace brazing. |
- Suitable Base Materials
- Iron-based alloys, cast iron, copper, nickel, stainless steel, etc.
Aluminum brazing filler metal
Aluminum brazing filler metal is made by adding silicon (Si) to aluminum to lower the melting point.
| Part number | Chemical Composition (%) | Operating Temperature ℃ (Guide) | JIS Name | Applications / Features | |||||
|---|---|---|---|---|---|---|---|---|---|
| Si | Fe | Cu | AI | Solidus | Liquidus | Brazing | |||
| Meta-flo 4047 | 12 | <0.8 | <0.3 | RMNG | 575 | 580 | 585～640 | A4047 | •Suitable for grafting with narrow gaps. |
| Meta-flo 4045 | 10 | <0.8 | <0.3 | RMNG | 575 | 590 | 595～650 | A4045 | •For general grafting. |
- Suitable Base Materials
- Pure aluminum (Series 1000), aluminum alloy. (Series 3000, Series 5000, part of Series 6000, etc.)
Aluminum brazing flux sintered wire (TBM)
Aluminum brazing flux sintered wire (TBM) can be used for aluminum brazing due to the Cesium-containing flux kneaded into the wire. (Standard product dimensions: 1.6φ to 3.0φ)
| Part number | Chemical Composition (%) | Operating Temperature ℃ (Guide) | JIS Name | Applications / Features | |||||
|---|---|---|---|---|---|---|---|---|---|
| Si | Fe | Cu | AI | Solidus | Liquidus | Brazing | |||
| TBM 12 NCs (Cesium 0.2%) |
12 | - | - | RMNG | 575 | 580 | 585～640 | A4047 |
•No need to apply flux to brazed parts. •The wire is viscous and can be shaped. •Suitable for high frequency brazing. |
| TBM 12 NCs 20 (Cesium 1.5%) |
12 | - | - | RMNG | 575 | 580 | 585～640 | A4047 |
•No need to apply flux to brazed parts. •The wire is viscous and can be shaped. •Suitable for high frequency brazing. |