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C - Technical Data Sheet","","Technical data sheet for Delta Sn42/Bi58 solid solder wire, Revision C (03/17). Describes the lead-free, low-temperature alloy designed for heat-sensitive electronics assembly and confirms conformity to IPC-J-STD-006C and relevant standards. Provides typical alloy analysis ranges and side-by-side comparisons with Sn63/Pb37, covering melting point, mechanical properties, thermal expansion, density, electrical resistivity/conductivity, and heat-related strength and fatigue data. Includes features, available wire diameters, storage guidance, packaging information, and disposal requirements.",{"@graph":69,"@context":116},[70,84,99],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":30,"@type":76,"position":81},"https://docshare.wps.com/document/technology/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/sn42bi58-wire-rev-c-technical-data-sheet/562981/",{"url":83,"name":65,"@type":85,"author":86,"headline":65,"publisher":89,"fileFormat":92,"inLanguage":63,"description":67,"dateModified":93,"datePublished":93,"encodingFormat":92,"isAccessibleForFree":94,"interactionStatistic":95},"DigitalDocument",{"name":87,"@type":88},"pixelkiddo","Person",{"url":74,"name":90,"@type":91},"DocShare","Organization","application/pdf","2026-10-12",true,{"@type":96,"interactionType":97,"userInteractionCount":4},"InteractionCounter",{"@type":98},"ViewAction",{"@type":100,"mainEntity":101},"FAQPage",[102,108,112],{"name":103,"@type":104,"acceptedAnswer":105},"What is the intended use of Sn42/Bi58 solder wire?","Question",{"text":106,"@type":107},"Sn42/Bi58 wire is designed for low-temperature, lead-free alloy applications in heat-sensitive electronics assembly.","Answer",{"name":109,"@type":104,"acceptedAnswer":110},"How does Sn42/Bi58 compare with Sn63/Pb37?",{"text":111,"@type":107},"The sheet lists lower melting point for Sn42/Bi58 (138°C vs 183°C) and provides comparative mechanical, thermal, electrical, and strength data in the tables.",{"name":113,"@type":104,"acceptedAnswer":114},"How should Sn42/Bi58 solder wire be stored and disposed of?",{"text":115,"@type":107},"Store the wire at 65–80°F away from direct heat, using appropriate gloves when handling directly; dispose according to federal, state, and local authority requirements.","https://schema.org",{"og:url":83,"og:type":118,"og:title":65,"og:site_name":90,"og:description":67},"article",{"robots":120,"canonical":83},"index,follow",{"doc_id":122,"site_id":62},562981,1791810260,{"code":4,"msg":5,"data":125},{"doc_id":122,"user_id":126,"nickname":87,"user_avatar":127,"doc_module":4,"category_id":29,"category_name":30,"doc_title":65,"doc_description":67,"doc_content":128,"file_id":129,"file_url":130,"file_type":131,"file_size":132,"view_count":4,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":14,"language":133,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":134,"faqs":135,"seo_title":136,"seo_description":67,"update_tm":123,"read_time":24},962090883892,"https://ap-avatar.wpscdn.com/avatar/e00115db34f3e0f11b?x-image-process=image/resize,m_fixed,w_180,h_180&k=1790152879550218658","TECHNICAL DATA SHEETSn42/Bi58 Wire, Rev. C, 03/17  \nSn42/Bi58  \nSOLID  \nSOLDER WIRE  \nCORPORATE HEADQUARTERS USA: 315 Fairbank St. Addison, IL ● 630-628-8083 ● FAX 630-628-6543  \nEUROPE UK: Unit 9 Apex Ct. Bassendale Rd. Bromborough, Wirral CH62 3RE ● 44 151 334 0888 ● FAX 44 151 346 1408 ASIA-PACIFIC HEADQUARTERS SINGAPORE: 6 Tuas South St. 5 Singapore 637790 ● 65 6795 7757 ● FAX 65 6795 7767 PHILIPPINES: Phase 1 Qualitek Ave. Mariveles, Bataan Philippines C-2106 ● 6347 935 4163 ● FAX 63475613717 CHINA: 3B/F, YiPa Print Bldg. 351 \\# JiHua Rd. , Buji Shenzhen, China 518112 ● 86 755 28522814 ● FAX 86 755 28522787  \nTECHNICAL DATA SHEETSn42/Bi58 Wire, Rev. C, 03/17  \nSolder Composition  \nDelta® Solder Wire Sn42/Bi58 is designed as a low temperature, lead-free alloy for heat sensitive electronics assembly applications. Qualitek® Bi58 alloy conforms and exceeds the impurity requirements of IPC-J-STD-006Cand all other relevant international standards.  \n\n| Typical Analysis |  |  |  |  |  |  |  |  |  |  |  |  |  |\n| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |\n| Sn | Ag | Cu | Pb | Sb | Bi | In | As | Fe | Ni | Cd | Al | Zn | Au |\n| Bal | 0.100\u003Cbr>Max | 0.080\u003Cbr>Max | 0.070\u003Cbr>Max | 0.200\u003Cbr>Max | 57.5-\u003Cbr>58.5 | 0.100\u003Cbr>Max | 0.030\u003Cbr>Max | 0.020\u003Cbr>Max | 0.010\u003Cbr>Max | 0.002\u003Cbr>Max | 0.005\u003Cbr>Max | 0.003\u003Cbr>Max | 0.050\u003Cbr>Max |\n\n\n|  | Sn42/Bi58 | Sn63/Pb37 |\n| --- | --- | --- |\n| Melting Point, °C | 138 E | 183 E |\n| Hardness, Brinell | 22HB | 14HB |\n| Coefficient of Thermal Expansion | 13.8 | 24.7 |\n| Tensile Strength, psi | 8766 | 4442 |\n| Density, g/cc | 8.56 | 8.42 |\n| Electrical Resistivity (µohm-cm) | 34.5 | 14.5 |\n| Electrical Conductivity,%IACS | 4.5 | 11.9 |\n\n\n|  | Sn42/Bi58 | Sn63/Pb37 |\n| --- | --- | --- |\n| Yield Strength, psi | 7119 | 3950 |\n| Total Elongation,% | 46 | 48 |\n| Shear Strength MPa, at 1mm/min 20 °C | 27 | 34.5 |\n| Shear Strength MPa , at 1mm/min 100 °C | 15.6 | 21.6 |\n| Fatigue Strength, Mpaat 1000 cycles 20 °C | 16 | 16.2 |\n| Fatigue Strength, Mpaat 1000 cycles 100 °C | 7.9 | 10.2 |\n| Specific Heat (J/g) | 46 | 45 |\n\nFeatures & Benefits  \n􀀁 Low melting point, prevents thermal degradation of heat sensitive components  \n􀀁 Acceptable wetting & flowing characteristics  \n􀀁 Low to non-toxic lead-free solder  \nAvailable Wire Diameters  \n\n| Diameter/in\u003Cbr>Diameter/mm | 0.048*\u003Cbr>1.20 | 0.032* 0.80 |\n| --- | --- | --- |\n\nStorage & Shelf Life  \nSn42/Bi58 solder wire should be stored at 65-80°F , away from direct heat. We recommend using appropriate gloves when handling solder wire directly. Solid solder wire has an indefinite shelf life.  \nPackaging  \n500 gram (0.5 Kilogram) per Box  \nDisposal  \nDelta Sn42/Bi58 solder wire should be disposed of in accordance with federal, state and local authority requirements.  \nQualitek® and Delta® are brands of Qualitek International, Inc.  \nPage 2 of 2","cbCainbRTNJrU8fA","https://ap.wps.com/l/cbCainbRTNJrU8fA","pdf",77186,"English","# Solder Composition\n## Features & Benefits\n## Solder Specifications and Comparisons\n## Available Wire Diameters\n## Storage & Shelf Life\n## Packaging\n## Disposal","[{\"question\":\"What is the intended use of Sn42/Bi58 solder wire?\",\"answer\":\"Sn42/Bi58 wire is designed for low-temperature, lead-free alloy applications in heat-sensitive electronics assembly.\"},{\"question\":\"How does Sn42/Bi58 compare with Sn63/Pb37?\",\"answer\":\"The sheet lists lower melting point for Sn42/Bi58 (138°C vs 183°C) and provides comparative mechanical, thermal, electrical, and strength data in the tables.\"},{\"question\":\"How should Sn42/Bi58 solder wire be stored and disposed of?\",\"answer\":\"Store the wire at 65–80°F away from direct heat, using appropriate gloves when handling directly; dispose according to federal, state, and local authority requirements.\"}]","Sn42/Bi58 Wire - Rev. C - Technical Data Sheet | PDF"]