RoHS compliant (Includes alloys with 85% Pb or more. . The selection of alloy is determined by application, melting temperature and physical properties. Bismuth is 86% as dense as Lead and has long been considered as the element with the highest atomic mass that is stable. The gold solders are available in many karats ranging from 1K to 22K and are available in yellow, white, green and pink. Commonly specified solder alloys are shown in the table. Solder Alloy Melting Temperature METAL WEIGHT PERCENT MELTING TEMPERATURE SOLIDUS LIQUIDUS TIN LEAD SILVER OTHER DEGREES C DEGREES F 0 100 327 621 2 98 316-322 601-611 5 95 301-314 574-597 10 90 268-302 514-576 15 85 225-290 437-554 20 80 183-280 361-536 . Durafuse ™ LT samples in the chart (left) experienced a peak reflow temperature of 210°C and demonstrated drop shock resilience similar to that of SAC305. Download Article . Below some solder-related terminology is defined; studying it will help you achieve microwave good-old-boy status in your assembly shop. Often used in reducing atmospheres. Solder - Wikipedia sizes, combinations of solder alloys and flux delivery systems. Solder alloys - Wikipedia Each sample was analyzed using metallographic techniques, light microscopy, SEM and EDS. Indium Wire Extrusion | Indium Wire | United States Lead Solder vs Lead Free Solder: Conductivity - Hentec ... Materials and Lead Solder Alloys . Since early 2000s the use of lead in solder alloys is discouraged by several governmental . PDF Ultra-Low Voiding Halogen-Free No-Clean Lead-Free Solder ... INDIUM/SILVER (97/3.0) Eutectic solder wire. PRODUCT DATA SHEET CW-301 - documents.indium.com Reflow Profiling for Next-Generation Solder Alloys Authored by MB Allen, KIC San Diego, CA, USA mballen@kicmail.com And Meagan Sloan, Kim Flanagan, Brook Sandy-Smith, Indium Corporation Clinton, NY, USA msloan@indium.com, kflanafan@indium.com, bsandy@indium.com ABSTRACT: After the Pb-free transition, most of the industry settled on using predominantly SAC305 solders. PDF Galvanic Compatibility For Residue removal would normally be for cosmetic reasons. All solder pastes used were brought to room temperature prior to stencil printing. The 4900 solder wires meets J-STD-004 and exceeds J-STD-006 purity specifications. First, there is the increasing harshness of the operating environment as electronic control modules are placed closer to the point of use. The two gold/tin alloys that are commonly used are the Sn90/Au80 217°C eutectic and the Au80/Sn20 280°C eutectic. INDIUM/SILVER (97/3.0) Eutectic solder wire. Indium Wire Extrusion | Indium Wire | United States indium/lead solder should be used on a gold alloy. Indium- or Bismuth-containing alloys are suitable for low temperature processes, while Gold-containing alloys, like 80Au/20Sn work best in high temperature applications. A utomotive electronics manufacturers are facing significant challenges with respect to the thermo-mechanical reliability requirements of solder joints. We manufacture 'On-Demand', and most orders ship in 48 hours. Tin-lead solder alloys can be obtained with melting temperatures as low as 182 °C and as high as 315 °C. ALLOY INFORMATION TECHNICAL INFORMATION ON COMMON & SPECIALTY ALLOYS . 10 Important Uses of Indium Indium is a silver-white and slightly bluish metal, with element symbol In, atomic number 49, relative atomic mass 114.8.Thanks to its good ductility, strong plasticity, low melting point, high boiling point, low resistance, corrosion resistance, etc., indium is widely used in industry and our everyday life. When liquid (at high temperatures) the residues are conductive. If you do not know the solder alloy that you need, please use the form below to help find the solder alloy that meets your criteria. INDIUM SHEET & INDIUM FOIL to your dimensions. 171 312 308 Preforms are commonly formed in 63/37 tin/lead solder. Indium has a low melting point for metals and above its melting point it ignites burning with a violet flame. It s the most naturally diamagnetic element and has one of the lowest values of thermal conductivity among metals. Indium-based alloys are ideal with applications where the alloy needs to have thermal conductivity. There were four solder pastes printed and tested: a bismuth containing baseline (57Bi 42Sn 1Ag), two novel bismuth-based alloys, and an indium-based alloy. 420 Alloy . Krohn Industries manufacturers an extensive line of gold, platinum, and silver solders produced under exacting quality control standards to insure karat, composition, and melt and flow points. Indium has some unique properties, but it is much more costly than other alloying elements, which are generally used in solders. Indium Corporation is a supplier of specialty solder and brazing spheres in small to mid-size volumes. • Bring the two pre-tinned substrates in contact with each other and reflow at 20-40°C over the liquidus temperature of the solder used to pre-tin. Transfer efficiency was measured across a variety of stencil aperture area ratios ranging from 0.38 to 0.80. Solder (/ ˈ s oʊ l d ər /, / ˈ s ɒ l d ər / or in North America / ˈ s ɒ d ər /) is a fusible metal alloy used to create a permanent bond between metal workpieces. . Solder Alloy Melting Temperature METAL WEIGHT PERCENT MELTING TEMPERATURE SOLIDUS LIQUIDUS TIN LEAD SILVER OTHER DEGREES C DEGREES F 0 100 327 621 2 98 316-322 601-611 5 95 301-314 574-597 10 90 268-302 514-576 15 85 225-290 437-554 20 80 183-280 361-536 . The lowest melting point eutectic cadmium alloy is at 46.8°C and also contains bismuth, lead, indium and tin. Tin . INDIUM WIRE in various sizes as shown on the chart from our Wire Sizes page. The solder chart of the Indium Corporation - which can be found online - reveals that many lead free solder alloys are capable of similar conductivity. Magnesium . The "44" flux residues are non-conductive and non-corrosive. Both lower melting point and higher melting point alloys are also available. If the assembly is in a heated environment and sees temperatures of over 160°F the flux residues will re-melt. Low temperature electrical solder compositions (by weight percent) having between 45-60% Sn; 25-40% Pb; 5-15% Bi; and 0.5-2.5% In. Beryllium . K100LD & K100 Case Studies Summary This PowerPoint pictorial examines a successful implementation of K100LD and K100 lead-free alloys at SMT Dynamics and Ayrshire Electronics. Lead-free solder alloys that melt lower than the tin-silver-copper alloys are composed of tin or tin alloys with the addition of bismuth, indium, or zinc, and all have advantages and disadvantages. Cadmium & Indium Free Solder. Indium Corporation will be exhibiting at stand A4-402. INDIUM/TIN (52/48) Eutectic solder wire. Special INDIUM WASHERS in sizes 3.37" and 1.75" diameter for COLDHEADS. Electrical solder compositions (by weight percent) having between 43-58% Sn; 38-52% Bi; and at least one of: 5-15%Sb; 1-4.0% Cu; 2% In; and 1-2% Ag, and having a melting temperature 133°-167° C. The solders are lead-free and have low melting points making them particularly useful for applications wherein components being joined involve thermoplastic substrates. These coils suit majority of welding and forming applications that is why it is popular amongst clients. The solders made from these compositions may be used in either a paste form (as in reflow soldering) or alternatively in bar solder form (as in wave soldering). See the Soft Solder Alloys table on page 10 for a list of the most common alloys used to produce Exactalloy™ preforms. Some solder alloys cannot be . This chart shows that certain alloys require much hotter reflow temperatures above the melting point to achieve good solder . These new alloys options also include alloys composed of tin and indium, or bismuth-tin with minor elemental additions of silver, antimony, or nickel. Table 1.13. To bond a non-metallic substrate to a metallic substrate 96S Black on white 221 221 281 Bright, strong, non-toxic lead-free solder Page 4 of 5 file://C:\DOCUME~1\gung\LOCALS~1\Temp\PUPY88S2.htm 3/4/2004. Notify a colleague about this item. INDIUM WIRE in various sizes as shown on the chart from our Wire Sizes page. Cadmium and Indium free. To make a long story short, once upon a time I've decided to make some kind of a reference table on the most important solder alloys for my very own needs and eventually released it on the Net. To provide a few guidelines, a nearly eutectic composition of 60 to 63% tin is standard for electronics soldering. Bismuth Alloys. Standard Product Specifications Indium Corporation manufactures mixed low-oxide spherical Pb-Free: Yes. Lead-Containing Solder Alloys: Tensile and Shear Strengths . • Pre-tin eachCu Alloys (Brass, Bronze) surface with indium or a high indium-containing alloy (as described above). SACM is a high-reliability solder alloy that increases the drop-shock performance in portable electronics by 800%, without compromising on . It is used as a decorative trim coating metallization on plastics used in appliance and automobile trim. Array Solders - Flux Coated Lead Free Solder Alloys SDS #830. In many cases, a stronger overall assembly exists after joining . solder aluminum foil. More than a decade later . Indium . Bismuth is a low cost alloying option, especially in light of rising metals costs, and will . Safety Data Sheets Please refer to the SDS document within the product shipment, or Solder Alloys Since our founding in 1934, Indium Corporation has been the world's leader in specialty solders and alloy development. INDIUM/TIN (52/48) Eutectic solder wire. Metals chart. Engineers provide expert advice in solder properties, alloy compatibility and selection of solder preforms, wire, ribbon, and paste. Bismuth is a white, crystalline, brittle metal with a pinkish tinge. At temperatures below the solidus, the alloy will be completely solid. All measurements are close approximations only and can vary slightly. Tin *Standard spring materials . A comparison of print data for Type 3, 4, and 5 no-clean, lead-free solder pastes is shown in chart below. Table 1 . warm solder paste (e.g. Chip Quik's line of indium solder wire offers three different indium alloys. GHS SDS. The 4900 Lead Free Solder Sn96 (SAC305) is an electronic grade, lead-free solder wire. In between, the alloy is in a plastic state and Solder is nonreturnable. Let's Talk Solder Paste. Krohn Industries manufactures most of these solders in sheet, wire, paste, powder and cut forms. * Identify your preferred melting temperature, operational temperature, OR process temperature. Bizarrely, the pure metal of indium is described as giving a high-pitched "cry" when bent. This metal has a low melting point from 107 degrees to 315 degrees Fahrenheit as it can be bent into any shape that is desired. At temperatures below the solidus, the alloy will be completely solid. Indium Corporation's Technical Support Engineers provide rapid response to all technical inquiries. The chart below shows an excerpt. Lead-Free Reflow Profile Recommended reflow profile for Kester solder paste formulations containing the Sn96.5Ag3.5 and Sn96.5Ag3.0Cu0.5 alloys Download Article. 95A Black on white 236 243 303 High melting lead-free alloy. Various embodiments of the invention provide laminate composite preform foils for high-temperature Pb-free soldering applications. Solder is melted in order to adhere to and connect the pieces after cooling, which requires that an alloy suitable for use as solder have a lower melting point than the pieces being joined. Alloy Temperature Chart . Galvanized Steel . All are available in sheet and wire form. Such solders may be designed to provide high impact shock resistance, especially when the alloys are used in portable devices such as mobile phones, laptops and so forth. properties of indium-lead alloys. Indium's recommend solder paste print parameters (e.g. placing jar on a hot surface, next to a warm air current, on a wave solder machine, etc. The alloys listed may be available in forms other than those indicated. Indium effectively reduces the melting point in solder alloys and . During soldering, the core metal, liquid solder layer, and substrate metals react and . Pure Tin Red on green 232 232 292 Used when a lead-free solder is required. ommon, C commercially available equipment was used for test board preparation. Special INDIUM WASHERS in sizes 3.37" and 1.75" diameter for COLDHEADS. INDIUM SHEET & INDIUM FOIL to your dimensions. Electrical solder compositions (by weight percent) having between 91.5-96.5% Sn; 2-5% Ag; 0.1-3%Ni; and 0-2.9% Cu; and having a melting temperature 220°C or less. Roseco solder is cadmium-free. Indium Corporation Fusible Alloys. It is commonly used for low-temperature soldering and hermetic sealing and has a melting point of 1+57°C (+315°F). Lead Tin Solder . In order to determine which alloy is the best fit for your application, your technical support engineers will need to know the following The Alloy Chart (Figure 1) lists melting and strength statistics, along with composition for 18 typical solder alloys. The series SDR silver sheet solder is available from extra easy flow to extra hard flow. Alloys 1.2.1 Alloy Composition The solder alloys covered by this standard include, but are not limited to, the alloys listed in Appendix A, including pure tin and pure indium. result in flux separation and the other aforementioned heat- Indium will cold weld to itself, useful for bonding parts or assemblies together. Then we mix the powder into paste solder. Alloys of 50% tin are traditional for plumbing and sheet metal applications. In between, the alloy is in a plastic state and Sn/Ag0.1/Cu0.7 SN100C® Sn/Cu0.7/Ni0.05+Ge 227 Near eutectic, low/no silver, cost effective alternative for wave soldering and hand soldering applications. 3 Solder Ball Test Pass J-STD-005 IPC TM 650 2.4.43 4 Wetting Test Pass J-STD-005 IPC TM 650 2.4.45 5 Paste Shelf Life 4°C (40°F) - 12°C (55°F) = 6 months AIM TM 125-11 6 Solder Paste Slump Test Pass J -STD 005 IPC TM 650 2.4.35 The 1000 and 1300 are also available in paste form. Table 1.14. Aluminum . Generally, solder alloys with more than about 8% bismuth will be brittle. Zinc Base Casting . HMP Blue on white 296 301 361 Special High Melting Point solder. Gold solders (from 1 karat to 22 karat). ), as this can . Indium is a soft, malleable metal with a brilliant lustre. SAC-B 0107 High purity and high performance alloy. Array Solders Sac305 Preforms with Rosin Flux. Thursday, August 27th, 2015. Preferably, the solder compositions have a melting temperature of about 154°-162° C. The solder compositions have microstructure similarly to Sn/Pb eutectic microstructure which makes them have excellent properties like higher yield strength and better creep . All Aluminum Alloys . In20 20 26 54 130-154 .2950 In19 19 81 270-280 .3707 In5 2.5 5 92.5 300-310 .3978 COMMON SOLDER ALLOYS SPECIALTY SOLDER ALLOYS The information contained herein is based on data considered . Thus it is cost-effective and convenient for maintenance. Product Description: Typical Indium Analysis 99.99% PPMWT Fe : 1-2 Ni : 2-6 Cu : 2-6 Cd : 5-10 Pb : 10-30 Sn : 10-25 Ti : 1-4 Analysis by OES * Please note that these are typical ppm levels, and do not represent maximum, minimum, or lot specific levels. and Carbon . magnitude greater than standard low-temperature alloys. * Solder Form Availability Subject to Change Solder Alloy Melting Point, °C solidus / liquidus Density, g/cm³ Electrical Resistivity, Thermal Conductivity, W/m⋅K Tensile Strength at Break, kgf/cm² Array Solders - Solder Wire with RMA SDS #930. Platinum and Palladium solder. Gold Tin Alloys Au Sn . Product Description: Bismuth-Tin Wire is a good low-temperature lead-free alloy. This two-part article will discuss the background and need for low-temperature solders and compare the "processability" of solder pastes with three novel alloys against the industry standard . Lead-Free Reflow Profile Recommended reflow profile for Kester solder paste formulations containing the Sn96.5Ag3.5 and Sn96.5Ag3.0Cu0.5 alloys Download Article. This reference covers solder alloys which feature melting points from about 50°C to about 400°C, both lead based and lead free. Our R&D staff, including several Ph.D. metallurgists, work with our core set of metals to develop alloys that will address the latest soldering and sealing challenges. Refer to chart on page 15 in "Principles of Soldering and Brazing" by Giles Humpston and David Jacobson showing the solder spreading characteristics for solder alloys based on Tin, Indium, Lead, Bismuth, and Silver. Other solder alloys are also available. Coupons of joints prepared with each solder alloy on a Cu-plated circuit board were subjected to thermal aging test for 20, 100, 200, 500 hours at 70, 100 and 150 degrees Celsius. The low voiding performance on Alloy A solder paste is particularly crucial since the automotive industry has been ailing by the poor voiding performance of this 6-element solder alloy system. It is known for demonstrating a lower rate of scaling in normal atmospheric conditions. The solder compositions have microstructure with uniformly dispersed fine grains of Sn-Ni, Sn-Cu and Sn-Cu-Ni intermetallic phases that provide resistance to grain growth during thermal cycling. At temperatures above the liquidus, the alloy will be completely liquid. We must acknowledge Indium Corporation's web site again here, providing us with excellent reference material. Your choices are almost endless. Platinum Solders. Indium Corporation's solder chart. The solders are available in Plumb,standard, repair, and CIF (cadmium free). Alloys Indium Corporation manufactures low-oxide spherical powder composed of Sn/Pb and Sn/Pb/Ag in the industry standard Type 3 mesh size. An MPM Ultraprint 2000 using Indium's SMQ92J solder paste was utilized. Reflow (Lead-Free Alloys) 30 Understanding the Specific Functions of the Profile 33 . print speed, print pressure) were followed. Lead . The weight ratio of the flux/vehicle to the solder powder is referred to as the metal load and is typically in the range of If indium/lead cannot be used due to either environmental reasons or temperature conditions, it is recommended to use a gold/tin alloy. Other non-standard mesh sizes are available upon request. We offer a wide variety of alloys and sizes from around 0.004" (100 microns) to 0.078" (1.98mm), depending on the alloy. It uses the predominant lead-free alloy composition. Figure 3: Flow chart of assembly process Solder Paste Process The first step of the test vehicle assembly process was the application of solder paste. For instance, an 80/20 alloy of gold and tin (Indalloy #182) scored a 14.51 percent. Cadmium . Only one temperature may be entered. Krohn Industries manufactures ten (10) different platinum solders ranging from 1000 to our 95% platinum PTWH. K100LD & K100 Case Studies Summary This PowerPoint pictorial examines a successful implementation of K100LD and K100 lead-free alloys at SMT Dynamics and Ayrshire Electronics. The advantages of the high Indium containing solder alloys of Table 5, above, may emanate from the high ductility of Indium metal. Array Solders - Indium Lead Alloys SDS. When indium is included in solder compositions, many advantages are realized. Twenty-eight Indalloy compositions can be found up to 100 ° C, including 10 eutectic alloys . Lead-Free Solder Alloys: Tensile and Shear Strengths . 13 02 2004 The eutectic composition occurs at 80 gold 20 tin or 30at tin However compositions from 80/20 to 70/30 gold/tin are used Gold/tin eutectic solders are classified as hard solders and are also suited to packaging of microelectronic and optoelectronic devices due to their excellent thermal and mechanical properties combined with their low reflow/melting Shear Strengths of Three Lead-Free Solders and Tin-Lead Eutectic (by Ring-and-Plug Test) Table 1.16. It provides a wider workable range of 430-475°F (221-246°C) to allow users to manipulate parts, while the solder is hardening. the standard description of solder products (see 6.3). Solder alloy selection is a complex topic. low temperature tin-based solder alloy. Array Solders - 63sn37pb Preforms with Rosin Flux Coatings or Cores. KappZapp4™ Tin-Silver solder is a NSF Certified Lead-free solid wire solder containing 4% Silver, offering improved tensile strength, shear strength, elongation, and conductivity over KappZapp3.5™. Increasing solder reliability at elevated temperatures. The solder paste using F 96.5Sn3.0Ag0.5Cu and Alloy A exhibited ultra-low voiding and virtually zero solder beading performance. Diameter: .030". The laminate composite preform foil is composed of a high-melting, ductile metal or alloy core layer and a low-melting solder coating layer at either side of the core layer. Indium is a bright, shiny metal that forms a thin (80-100 angstroms) protective oxide layer. Mechanical Properties of Tin, Tin-Lead, and Four Lead-Free . Solidus Melting Temperature: 139°C Eutectic. Indium will reduce gold scavenging that can occur with tin-based solder on gold or gold-plated parts. To use this chart, locate the metals being considered for the housing and spring. Compared to conventional tin-lead solders, indium alloys exhibit lower crack propagation and improved resistance to thermal fatigue. The results indicate that the formation of intermetallic layers It is complemented with a no clean, synthetically refined, splatter-proof resin flux core. Melting points range from below 90°C to over 700°C. Array Solder Preforms with Rosin Flux Safety Data Sheet. These alloys include In100 (100% Indium), In97/Ag3 (97% Indium with 3% Silver), and In52/Sn48 (52% Indium, 48% Tin). Table 1.15. We roll these solders into sheet, cut them into pennyweight pieces, gram pieces and small cut sizes, draw them into wire solder, atomize them into powder. The name indium originates from the indigo blue it shows in a spectroscope. At temperatures above the liquidus, the alloy will be completely liquid. Download Article . Sn99.3/Cu0.7 Sn97/Cu3 227-300 Lead-free alloy used for high temperature soldering applications. Liquidus Melting Temperature: 140°C Eutectic. Plumb Gold Solders. The choice of specific solder alloys depends on their melting point, chemical reactivity, mechanical properties, toxicity, and other properties.Hence a wide range of solder alloys exist, and only major ones are listed below. We manufacture 'On-Demand', and most orders ship in 48 hours. Except for the pure metals and the eutectic solder with 63% Sn and 37% Pb, all tin-lead solder alloys melt within a temperature range that varies according to the alloy composition. Alloy: 57Bi 42Sn 1Ag. Krohn Industries has developed a series of platinum solder pastes for the jewelry industry. Indalloy ® 15 (Solidus: 38 ° C; Liquidus 43 ° C) is at the low end of the spectrum. Because of the relatively low indium content, the alloys were low cost and suitable for production in large commercial quantities. This kind of finish makes Aluminum Alloy 5005 Coil look appealing. Some alloys are listed under more than one element, since the composition of the alloy may vary such that one element is present in a higher concentration than the others. Both materials should . Solder is a metallic material that is used to connect metal workpieces. Indium is a silvery metal that is so soft and malleable that it can be scratched with the tip of a fingernail. Tin Lead Solder . Each alloy is identified by an alloy name, which is com-posed of a series of alphanumeric characters that identify Our materials, classified by Indalloy ® number, offer a wide range for desired liquidus/solidus/melting point locations on the temperature scale. Silver solders. Bismuth alloys can contain a small amount or a large amount of bismuth. This is an alphabetical list of alloys grouped according to base metal. Quantity: 3 FT Spool. An eutectic alloy melts to become a free running liquid at a single temperature which is lower than the melting point of any of its component elements. Krohn Industries manufactures these solders in sheet, wire, paste, powder and cut forms. not limited to the SAC alloys, however. Additional solder alloys manufactured by Nathan Trotter Lead-Free Alloys Sn99/Ag0.3/Cu0.7 (SAC 0307) Sn100 (Tin Bar) Sn95/Sb5 Sn97/3Cu Leaded Alloys Sn60/Pb40 Sn62/Pb36/Ag2 Sn30/Pb70 Sn20/Pb80 Sn40/Pb60 Sn63/Pb 37—(SN63) Main Office Nathan Trotter & Co., Inc. 241 W. Stewart Huston Dr. Coatesville, PA 19320 Mailing Address P.O.Box 369 . INDIUM In99 99.9 156 .2639 In80 5 80 15 142-149 .2834 In70 70 30 165-175 .2956 . Zinc . In100 which is pure indium and can be used for bonding to glass, ceramic, and quartz. Indium Corporation Tech Paper An alloy is a material made by melting one or more metals together with other elements. The Alloy Chart (Figure 1) lists melting and strength statistics, along with composition for 18 typical solder alloys. Note: Sheet solder is priced and sold in 1 pennyweight (1 dwt) sheets. 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