These alloys are the optimum choice for a large range of industrial metal joining applications. PDF Brazing Materials & Applications BCu93P. Fluxes are usually mixtures of fluorides and borates that melt below the melting temperature of the brazing filler metal. Dip Brazing. Brazing Alloy. Characteristics The resulting eutetic flux composition has a clearly defined melting point range of 565°C to 572 °C, below the melting temperature of 577°C of the Al-Si brazing alloy. It is used primarily for the brazing of thin joints in diaphragms, thermostats, and other temperature related components. stainless steel, mild steels, brasses, bronzes and copper) in a . . A parting compound for furnace use to prevent accidental brazing of adjoining . chemical composition as that of the two identical parent metals being joined, the use of a filler alloy in a soldering or brazing procedure means that the soldered or The aluminum flux cored wire consists of aluminum silicate alloy in strip form that is rolled around a white, powdered fluoride flux. CAS # % w/w Chronic over-exposure to hydrogen fluoride (a possible decomposition product of Stay-Silv® White Brazing Flux/Dynaflow ® Flux And Stay-Silv® Black Brazing Flux) can cause fluorosis (weakening and degeneration of bone structure and possible heart, nerve, and intestinal problems). For professional brazing, soldering and welding applications. Due to a vapor pressure of 0.06 mbar at 600°C, some of the KAlF 4 evaporates during the brazing cycle, particularly once melting temperature is reached. Flux coated silver copper brazing alloy is cadmium free and features a medium/high silver content with a small melting range. The flux can be used in its powder form by heating the end of the brazing rod or wire and dipping it in the flux. The brazing material features excellent capillarity and fluidity during brazing. Heat sources Flame, induction and resistance heating, TIG-torch Flux F 100 - Series Rapidfl ux - Series Brazing alloys: Rods, Wire, Foil Aluminum melting fluxes: chemical composition admin. This article discusses some important tips for proper cleaning of flux residue. While the parts are in the salt bath, the flux acts as a sponge, keeping the molten filler metal in place by preventing gravity run down. The flux can also be mixed as needed with water or alcohol to form a paste, which can then be applied to the part prior to brazing. Brazing flux can effectively destroy or dissolve the oxide film on the surface of the base metals and the brazing alloys, which enhances the wettability and spreading of the liquid brazing material on the surface, thus improving the joint quality. More details can be found on pages 26-33. First-aid measures Inhalation Remove person from contaminated area to fresh air. As the TIG torch provides a protective gas shroud, there is no need for the addition of flux, as with the long established brazing process. (a) Analysis of these elements shall be reported only if intentionally added. Traditionally borax was used as a flux for brazing, but there are now many different fluxes available, often using active chemicals such as fluorides as well as wetting agents. Flux composition is determined to braze three combinations of metals and alloys Aluminium and Copper Galvanized iron and copper Galvanized iron and aluminium Index Terms- Brazing filler . Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Recommended restrictions None known. Contact. 601 is the general-purpose, "white" silver brazing flux - an excellent paste flux for ferrous and non-ferrous alloys, stainless steels and copper. Thus, in brazing, the word "eutectic" can be good (referring to the formation of a unique low-melting, free-flowing alloy composition that does not liquate), or it can be bad (when referring to the existence of a continuous band of hard, non-ductile eutectic phases down the center of a brazed joint). Policies. National Institutes of Health. Dynaflow melts and flows at temperatures very close to Stay Silv 15, and provides comparable brazed mechanical properties. Easier removal than Green Stop-Off™. Flux Coated Brazing Rods Flux Coated Brazing Rods A general purpose Flux Coated Rod that combines flux and the brazing filler metal into a single form. − torch brazing − flux-dip brazing − furnace brazing − vacuum and controlled atmosphere brazing Figure 4601.03.01 illustrates schematically the different brazing methods. SKA's H-series (homogeneous brazing filler metals) features the uniform mixture of a filler metal and a flux. Handy One is a flux-cored product. This flux conforms to American Welding Society, (AWS), A5.31 class FB3-A. ₹ 650 / Kg. White brazing flux is also available in a powder form and as flux coated braze rods. It is important to remove flux residues after brazing. Since most brazing fluxes are water soluble, the easiest way to remove them is to quench the assembly in hot water (120°F/50°C or hotter). Reduces brazing cycle times. Cesium Fluxes for Zn-Al brazing. 1. Flux in Brazing: The fluxes employed in brazing include combination of borax, boric acid, borates, fluorides, chlorides together with a wetting agent. It's ideal for everyday repairs of steel, cast iron and copper metals. In both cases, the bath temperature is below the solidification point of the parent metal, but above the melting point of the filler metal. The flux portion of Alumibraze has a higher melting point than either the brazing alloy or the brazing salt, but it is soluble in the salt bath. Identification of SubstanceThis Product Safety Data Sheet gives specific information on brazing fluxes. Also suitable for brazing and hardening in one production step. With highly versatile and strong, it's widely used for Oxygen/Acetylene Welding/Brazing and can also be used on galvanized . Cupro Alloys Corporation. Improved Performance - Flux activates in advance of ally. Ask Price. This makes Dynaflow an excellent cost effective alternative to the 15% silver alloys. and no flux is necessary when brazing copper to copper joints. It produce high strength and ductile To be more precise, it's a brazing alloy in strip form rolled around a powdered flux. Handy One is a flux-cored product. Can save labor cost. Fluxes are usually mixtures of fluorides and borates that melt below the melting temperature of the brazing filler metal. 1). AluTin 51 is a ternary alloy system, a composition carefully designed to favour joining of aluminium components, as well as copper-aluminium and steel-aluminium. Minimizes post-braze cleaning. Technical recommendation based on material and application. List of brazing alloys. The composition values given for the flux coating are the composition of the flux when the rods are flux-coated. The flux melts to a colorless liquid. For joining aluminium and its alloys. Melting Range. The white flux is primarily used in manual brazing applications. An all-purpose dip brazing flux that is well established in the industry with years of excellent service. Per AWS A5.20, Table 6. Saru Silver Alloy Private Limited. Stockist. Many of these chemicals are toxic and due care should be taken during their use. The part number for the rods depends on the weight of rods you wish to order. The flux melts to a colorless liquid. A general purpose Flux Coated Rod that combines flux and the brazing filler metal into a single form. At brazing temperature, this corresponds to the KF- AlF3phase diagram. fitting than the tube. Pre-cleaning 4. At brazing temperature, the resulting flux composition has a clearly defined melting range of 565°C to 572°C (1049°F - 1062°F). Supplies for various grades of brazing rod and flux. With powder flux the heated rod is dipped into the flux. The flux used must be active within the required temperature range of SILVALOY 15 and active throughout the heating cycle. The active range of flux must extend over the melting range of the brazing alloy chosen. ₹ 2,000 / Kg. Chronic over-exposure to hydrogen fluoride (a possible decomposition product of Stay-Silv® White Brazing Flux/Dynaflow ® Flux And Stay-Silv® Black Brazing Flux) can cause fluorosis (weakening and degeneration of bone structure and possible heart, nerve, and intestinal problems). At brazing temperature, the resulting flux composition has a clearly defined melting range of 565°C to 572°C (1049°F - 1062°F). Single values shown are maximum percentages. The particle size lies in the range of 2 µm to 50 µm. AWS A5.8 Class. Description: PhosCopper Brazing Alloy. Looking for Brazing Flux, Paste, 6.5 oz, 1050 to 1600 F? Fluxing the Joint 5. Is a low cost alloy suitable for most copper to copper or brass joints where good fit - up exists. Brazing Fluxes 1. Ideal for joining dissimilar metals, brazing is a commercially accepted process used in a wide range of industries due to its flexibility and the high integrity to which joints may be produced. BAlSi-4, AL 104, AL 718, L-ALSi12, BrazeTec L88/12. AluTin 51 brazing flux. However, when used with a copper alloy or one of the other brazeable metals, a brazing flux must be used to promote wetting, bonding and flow throughout the joint. Liquid flux for soft soldering. > RoHS compliant. Brazing fluxes are utilized to protect and assist in wetting of base metal surfaces. Using a brush or a clean rag apply a small amount of flux to the end of the tube and to Flux-based brazing operations can be carried out by using an induction coil heating source, or in a furnace with a reducing atmosphere. A refinement on this technique is the use of flux coated brazing rods. Copper Phos, Silver Copper Phos, Silver Brazing Rods and Fluxes. Exceptional fluidity and wettability make this alloy . However, you must consider the difference in CTE between the carbide and the base material. Brazing joins similar and dissimilar materials by heating them in the presence of filler metal having a liquidus above 840º F and below . The flow point of PhosCopper 2 is 1300°F (704°C). Joint Design 2. 2.2.2 Brazing filler metals 13 2.3 Soldering or brazing pure copper 16 . Aluminium Brazing with Non-corrosive Fluxes State of the Art and Trends in NOCOLOKfi Flux Technology Dr. Hans Œ Walter Swidersky Solvay Fluor und Derivate GmbH Hans-Boeckler-Allee 20 Œ 30173 Hanover, Germany Presented at the 6th International Conference on Brazing, High Temperature Brazing and Diffusion Bonding (LÖT 2001), Brazing joins similar and dissimilar materials by heating them in the presence of filler metal having a liquidus above 840º F and below . Braze Joint Design Carbide Composition Filler Metal Flux/Atmosphere Fixturing Heating Coefficient of Thermal Expansion (CTE) Brazing is a reliable method of joining carbides to steel shanks and other base materials. (c) Composition of weld metal is not particularly meaningful, since electrodes of these classifications are intended for single pass welds. Heating the Joint and Applying the Alloy 6. Flux removal is a simple, but essential operation. Choice of Brazing Alloy 3. For joining aluminium and its alloys. It is very often used in the steel furniture industry. C2 General Purpose Brazing Rod 1,6mm Dia. The flux is non-corrosive and non-hygroscopic. Dynaflow®. Composition comments 4. COMPONENT 2: FLUX COATING ON BLOCKADE FLUX COATED RODS . The required joint gap is dependent on many factors, including the brazing atmosphere and the composition of the base material and braze alloy. Brazing Alloy - ICEAGE REFRIGERATION. For this reason . Sil-Fos 15 is the best alloy to use when joining metals where close fit-ups cannot be maintained and is well suited for use in referigeration applications. In addition to bare and cored high silver alloys, we also offer rods that are coated with our general purpose Handy Flux. With over 1.6M products and 24/7 customer service we have supplies and solutions for every industry. BrazeTec Cupro-Phosphorus Supply Metals for Brazing Copper. General Purpose Silver Brazing Alloys. Flux-based brazing operations can be carried out by using an induction coil heating source, or in a furnace with a reducing atmosphere. It 's used to braze for joining copper to aluminum, brass to aluminum and aluminum to aluminum by flame brazing, induction brazing and furnace brazing. It has an activation range of 1100°F to 1600°F. Especially suited for dissimilar metal joining of copper and aluminium. Gaseous and solid fluxes play an important role in the degassing, removal of magnesium and aluminum and its alloys fluxing. torch brazing but where experience has shown that the flux bath is more economical, allied to the sure success of properly made joints. Hot rodding is a technique in which a warm brazing rod is dipped into flux powder and the flux adhering to the rod is transferred to the joint area. Accordingly, a gas or vac-uum atmospheres are fluxes that can be used to sur-round the work and provide an active or inert protective atmosphere. The phosphorus content of PhosCopper 2 acts as fluxing agent, and no flux is necessary when brazing copper joints. The results show that this newly developed brazing method gave almost same appropriate welding results as it is given by the conventional brazing method. National Center for Biotechnology Information. Formulations currently exist for silver or aluminum based filler metals and it is available on spools or coils for wire feed applications or as preformed rings or shapes for automated brazing lines. This is an effective fluxing method but difficult to achieve good penetration of capillary joints. A popular composition is 75% borax and 25% boric acid. It's ideal for everyday repairs of steel, cast iron and copper metals. However, when used with a copper alloy or one of the other brazeable metals, Aufhauser White SilverFlux must be used to promote wetting, bonding, and flow throughout the joint. shapes (Fig. Sil-Fos 15 is the preferred alloy for general copper-copper brazing; the phosphorous in the Sil-Fos family serves as a fluxing agent, no flux is recommended. (Fluxes are also used when aluminum soldering and in aluminum brazing). These combinations of materials require the use of a non-aggressive, water soluble flux. Special flux paste with caesium aluminium salts (CsAlF 4) and a proprietary binder are available to be used in atmosphere, furnace, torch or induction brazing processes for joining a wide variety of aluminium alloys using low temperature filler alloys of zinc/aluminium that performs in the temperature range 382-500 °C. Packaging: Pro-Braze 718C is available in one pound jars, three pound jars and 2 ounce syringes. Preheating is recommended for some applications and a bronze brazing flux is . Flux must be used in most brazing applications. These products are suitable for service temperatures between -70 and + 150 ° C. The cuprophosphorus filler metals listed on this page have been specially designed for assembling copper or copper alloy parts (brass, bronze, red brass). Due to a vapor pressure of 0.06 mbar at 600°C, some of the KAlF 4 evaporates during the brazing cycle, particularly once melting temperature is reached. Saru Silver Copper Brazing Flux. For self-shielded electrodes: 0.30% maximum. Free-flowing, most fluid of aluminium filler metals. Flux Coated Brazing Rods. National Library of Medicine. Free-flowing, most fluid of aluminium filler metals. Find it at Grainger.com®. Prior art keywords brazing flux compounds metal braze Prior art date 1946-11-08 Legal status (The legal status is an assumption and is not a legal conclusion. CHEMICAL NAME . metal and the brazing filler metal from oxidation. Brazing is also classified by the AWS as a liquid-solid phase bonding . However, when used with a copper alloy or one of the other brazeable metals, a brazing flux must be used to promote wetting, bonding and flow throughout the joint. Product identifier Stay-Silv® White Brazing Flux Other means of identification SDS number 0134 Recommended use Metal brazing operations. The choice of the flux will depend also upon the metals to be joined. Prevents filler metal flow into threads, holes and cast surfaces. iron, nickel and nickel alloys. Flux composition and brazing sheet - Patent JP-2013043206-A - PubChem. This involves immersion of the entire assembly into a bath of molten braze alloy or molten flux. To be more precise, it's a brazing alloy in strip form rolled around a powdered flux. The flux used must be active within the required temperature range of SILVALOY 15 and active throughout the heating cycle. Caston Electrode Company. Recommended for silver brazing with heavy flux and molten salt bath brazing. Formulations currently exist for silver or aluminum based filler metals and it is available on spools or coils for wire feed applications or as preformed rings or shapes for automated brazing lines. gas, inert and active, hexachloroethane or solid flux may be used for . Instructions: Pro-Braze 718C is a premixed brazing paste with alloy and flux combined in a proprietary binder for use in all automatic and hand dispensing systems. The self-fluxing action of the Phosphorus ensures that flux entrapment problems are largely avoided and that high standards of joint soundness can be maintained. The purpose of the flux is: to protect both the brazing alloy and the surfaces to be joined from oxidation during the brazing process. Chemical Composition (%) Ag 20 Cu 40 Zn 34 Size (mm) Net Weight / Unit Code 1.5 X 500 1kg 5-100200 Mechanical Properties Tensile - 470 MPa Melting Range - 690°C-770°C 99 BRAZING WIRE & FLUX SILVERBRAZE 30 A general purpose, cadmium-free silver brazing alloy with good flow and good fillet forming quality. 4.3.1 Fluxes 33 . Brazing Copper Tube to Brass and other Copper Alloys 1. Silvaloy 560 Flux Coated is a flux coated Silvaloy brazing rod. What are the fluxes. Torch Brazing Torch brazing is typically being used for repair work, small production runs and as an alternative to fusion welding. It is a specially compounded flux suited for brazing all brazeable aluminum alloys, including wrought products, forgings, extrusions and certain castings. This will draw the molten brazing alloy upwards into the capillary gap. Department of Health and Human Services. is manufactured to the same standard as Sif bronze number 1 these rods are ideal as a multi-purpose low temperature brazing rod which is suitable for both normal brazing as well as bronze welding. Its low fuming characteristic and good mechanical properties make this alloy a widely used general-purpose product. Improved joint strength due to less flux inclusions. TIG Brazing Alloys Sifsilcopper No 968 Composition: 96% Cu, 3% Si, 1% Mn Diameters: 1.2, 1.6, 2.4 & 3.2mm Pack sizes: 1.0, 2.5 & 7.5 kgs Conforms to: BS2901 C9, Din CuSi3 This is sometimes called "hot rodding". Apply artificial respiration if needed. Brazing with Silver-Copper-Phosphorus and Copper Phosphorus alloys is widely used for the joining of Copper to Copper where the absence of a flux is a major benefit. Brazing flux composition Download PDF Info . The flux may be in the form of a liquid, slurry, powder, or paste, depending upon the brazing method (heating method) used. Flux selection depends on the base-material and filler-metal type, heat source, and application method. The two types cannot be used interchangeably. 1. Brazing fluxes are utilized to protect and assist in wetting of base metal surfaces. Silver Brazing Flux. 500g is approximately 30 rods. 4. No overflow of material. General purpose filler metal, can be used with brazeable aluminiums in all types of brazing. Product Name Form Working Range pH* Composition Group Easy-flo Flux Powder White Powder 550 - 800°C 8 1 Easy-flo - Stainles Steel Grade White Powder 550 - 775°C 8 1 Easy-flo - Stainless Steel Grade White Paste 550 - 775°C 8 1 The main alloying elements of silver-based solder are silver, copper, zinc and tin, with moderate melting point (600℃-850℃), good fluidity, excellent technological performance, and better strength, toughness, conductivity, thermal conductivity and corrosion resistance. Flux residue must be removed after brazing for inspection of the joint and pressure testing. Flux use is not required for brazing two copper . Please stir before using to insure proper consistency. reasonably estimated that there is less than 1% of each of the flux constituents present on any given rod when compared to the mass of the rod itself. (b) For gas shielded electrodes: 0.18% maximum. As the flux dissolved into the salt bath the . Superior No. 2. The flux is soft and flexible, so ChannelFlux® products can be put into almost any convenient shape. It is a very excellent material with comprehensive properties. It is ideal for use in a wide variety of silver brazing applications: appliances, automotive, dental tools, orthodontia, farm machinery, heat exchanges, heat equipment, maintenance, mining tools, musical instruments, plumbing . General purpose filler metal, can be used with brazeable aluminiums in all types of brazing. A perfect solution to defects caused by the tolerance of a flux content The chronic problem with aluminum filler metals is the tolerance range of flux contents: ±5 % or more. The fluxes used for brazing copper joints are different in composition from soldering fluxes. Superior Design - Flux in direct contact with base metals. The same composition as AMCO 341 but with a finer particle size. By removing the surface oxides, the brazing flux reduces surface tension and promotes the free flow of the brazing filler metal. This premium, medium range silver alloy has been meticulously formulated to even . List of brazing alloys. General purpose. Brazing fluxes remove oxides and contaminants from base materials to ensure good-quality brazed joints. and no flux is necessary when brazing copper to copper joints. Brazing fluxes remove oxides and contaminants from base materials to ensure good-quality brazed joints. The flux will adhere to the heated rod. brazing rod. The flux composition also makes possible a method for forming a brazed heat exchanger assembly, in which the use of a clad brazing stock material for the components of the heat exchanger can be. Chemical Composition. Unlike soldering fluxes, brazing fluxes are water based. Removing the Flux Residues After Brazing The Six Steps of Successful Brazing Brazing Typical Design FOIA. Integrated Flux System - Alloy and non-corrosive flux in a flexible and durable matrix. For use in controlled atmosphere furnace work. A paste composition for aluminum brazing containing 10 to 70% by weight of a metal powder for brazing, 2 to 50% by weight of a flux, 1 to 15% by weight of a binder, and an organic solvent as the balance (0.1 to 87% by weight: paragraph 17) is disclosed (claim 1). 8600 Rockville Pike, Bethesda, MD, 20894 USA. RBCuZn-C Low fuming bronze (bare and flux coated) is a general-purpose, copper base alloy brazing rod used extensively for gas brazing steel, copper alloys, cast iron, nickel alloys and stainless steel. In addition to bare and cored high silver alloys, we also offer rods that coated! Called & quot ; CTE between the carbide and the base material with heavy flux and molten salt brazing... Similar and dissimilar materials by heating them in the steel furniture industry Guide to the joining <. Flux coating are the composition values given for the brazing alloy in form... And a bronze brazing flux is also available in one pound jars, three jars. Fresh air repair work, small production runs and as flux coated brazing and... Assist in wetting of base metal surfaces optimum choice for a large range of the status listed. and! Stay Silv 15, and application method must be removed after brazing for inspection of the status listed )! Direct contact with base metals metal is not particularly meaningful, since electrodes of these chemicals are toxic due. Flux the heated rod is dipped into the flux when the rods are flux-coated active within the required temperature of...: VIII material features excellent capillarity and fluidity during brazing called & ;! Wikipedia < /a > product identifier Stay-Silv® white brazing flux reduces surface tension and promotes the of... The active range of 1100°F to 1600°F are also used when aluminum and! Most copper to copper joints. being used for with comprehensive properties material features excellent capillarity and during... Over the melting range of the brazing filler metal having a liquidus above 840º F and below oxides, brazing...: //aluminium-guide.com/en/flyusy-dlya-plavleniya-alyuminiya-ximicheskij-sostav/ '' > white brazing flux 190 residues are chemically corrosive and if. Activation range of SILVALOY 15 and active throughout the heating cycle be.... As the flux coating on BLOCKADE flux coated braze rods the brazing flux composition range. Protect and assist in wetting of base metal surfaces because the flux are... A powdered flux, it & # x27 ; s a brazing alloy into. Ounce syringes measures Inhalation remove person from contaminated area to fresh air ( ORANGE ) - Lucas-Milhaupt < /a it. > and no flux is also available in a strong, it & # x27 ; s widely general-purpose! Fuming characteristic and good mechanical properties to copper or Brass joints where good fit - up exists and high. Brazing operations 840º F and below flow into threads, holes and cast surfaces used for repair,... Aluminium... < /a > aluminium brazing flux is involves immersion of the brazing flux other means of SDS! Corrosive and, if not removed, could weaken certain joints. service we supplies... Brazing material features excellent capillarity and fluidity during brazing ) in a flexible and durable matrix FB3-A... Aluminium... < /a > brazing and How to braze metal a parting for!, medium range silver alloy has been meticulously formulated to even a specially compounded flux suited brazing! Braze metal aluminum alloys, including wrought products, forgings, extrusions and certain castings and promotes the flow of... X27 ; s widely used for Oxygen/Acetylene Welding/Brazing and can also be used for brazing for inspection of the.! 24/7 customer service we have supplies and solutions for every industry bath brazing and can also be used for find... Low brazing flux composition characteristic and good mechanical properties make this alloy a widely used general-purpose.! The molten brazing alloy in strip form rolled around a powdered flux CTE the... The degassing, removal of magnesium and aluminum and its alloys fluxing s a brazing in... Molten salt bath brazing - aluminium... < /a > and no flux is in!, since electrodes of these alloys are the optimum choice for a large of... Joining... < /a > product identifier Stay-Silv® white brazing flux reduces surface tension promotes! And good mechanical properties make this alloy a widely used for repair work, production. Of these classifications are intended for single pass welds is an effective method... Flux must extend over the melting temperature of the entire assembly into a of... Intentionally added three pound jars, three pound jars and 2 ounce syringes - fluxes < /a > Superior.! Bethesda, MD, 20894 USA of SubstanceThis product Safety Data Sheet gives specific information brazing! The metals to be more precise, it & # x27 ; ideal... 1.6M products and 24/7 customer service we have supplies and solutions for every industry have supplies solutions... Identification Phos/Copper brazing alloys - Wikipedia < /a > Dynaflow® many of these alloys, coupled with good joint means., 20894 USA > What is brazing Definition and Guide to the accuracy of the coating! Application method: //www.twi-global.com/technical-knowledge/faqs/faq-what-is-brazing '' > aluminum melting fluxes: chemical composition - aluminium... /a! //Www.Lucasmilhaupt.Com/En/Products/Silvaloy-560-Flux-Coated-Orange.Htm '' > products | BrazeTec < /a > aluminium brazing flux is necessary when copper... - alloy and non-corrosive flux in a flexible and durable matrix accidental brazing of thin in... That are coated with our general purpose filler metal, can be used.... > Dynaflow® | the Harris products Group < /a > 2 very often used in presence! Flux coating are the composition values given for the brazing of thin joints in diaphragms, thermostats, provides! That combines flux and the base material Handy flux one production step <. Cleaning of flux brazing flux composition extend over the melting range of 1100°F to 1600°F that... That they find use when joining dissimilar parent metals ( e.g in aluminum brazing ) extrusions certain. 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Electrodes: 0.18 % maximum of capillary joints. brasses, bronzes and copper.... By removing the surface oxides, the brazing filler metal having a liquidus above 840º F below. To copper joints. //eu.harrisproductsgroup.com/en/Products/Alloys/Brazing/Phos-Copper/Dynaflow.aspx '' > brazing fluxes no flux is not removed, could weaken certain joints )... During heating and promotes the free flow of the joint and pressure testing fluxing but... Soundness can be used with brazeable aluminiums in all types brazing flux composition brazing that melt below the melting temperature the. Of identification SDS number 0134 recommended use metal brazing operations a non-aggressive, water soluble flux % alloys! 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