[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-662696-105":59,"doc-detail-662696-en":130},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":123,"head_meta":125,"extra_data":127,"updated_unix":129},105,"en","prc-0007-process-specification-for-manual-arc-welding-of-developmental-and-experimental-hardware","PRC-0007 - Process Specification for Manual Arc Welding of Developmental and Experimental Hardware","","This process specification defines minimum requirements governing manual arc welding of experimental, non-structural and non-flight NASA developmental hardware fabricated on-site under NASA/JSC authority. It establishes applicability limits, weld class integrity expectations (including Class E with no weld quality guarantee), and guidance for how welds are to be called out on engineering drawings. It details material handling expectations, process execution responsibilities, and documentation requirements for rationale and weld records.",{"@graph":69,"@context":122},[70,84,105],{"@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":40,"@type":76,"position":81},"https://docshare.wps.com/document/research-report/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/prc-0007-process-specification-for-manual-arc-welding-of-developmental-and-experimental-hardware/662696/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/prc-0007-process-specification-for-manual-arc-welding-of-developmental-and-experimental-hardware/662696.png","ImageObject",300,407,{"name":92,"@type":93},"Franzy","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-30","2026-10-28",true,{"@type":102,"interactionType":103,"userInteractionCount":81},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What hardware types does this process specification cover?","Question",{"text":112,"@type":113},"It governs manual arc welding of experimental hardware that is non-structural and non-flight, fabricated on-site under NASA/JSC authority.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"Which welding processes are applicable under this specification?",{"text":117,"@type":113},"Flux Cored Arc Welding (FCAW), Gas Metal Arc Welding (GMAW), Gas Tungsten Arc Welding (GTAW), and Shielded Metal Arc Welding (SMAW) are listed as applicable.",{"name":119,"@type":110,"acceptedAnswer":120},"What is Class E and what guarantee does it provide?",{"text":121,"@type":113},"Welds made under this PRC for developmental and experimental hardware are designated as Class E, which is the lowest integrity and comes with no guarantee of weld quality.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},662696,1793221786,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":39,"category_name":40,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":81,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":44,"language":139,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":140,"faqs":141,"seo_title":142,"seo_description":67,"update_tm":129,"read_time":143},2336478945519,"https://ap-avatar.wpscdn.com/davatar_085a072bc5b1113ac321206ff7593b45","Process Specification for the Manual Arc Welding of Developmental and Experimental Hardware  \nEngineering Directorate  \nStructural Engineering Division  \nMay 2026  \nNational Aeronautics and Space Administration Lyndon B. Johnson Space Center  \nHouston, Texas  \nProcess Specification for the Manual Arc Welding of Developmental and Experimental Hardware  \nPrepared by:  \nReviewed by:  \nApproved by:  \nDigitally signed by Clinton Denny  \nClinton Denny (affiliate) (affiliate)  \nDate: 2026.05.13 11:37:02-05'00'  \nClinton S. Denny  \nQuality Engineering Branch/NT4  \nJunhua Pan (affiliate) D(aigffiiltaialltye)signed by Junhua Pan  \nDate: 2026.05.13 09:51:09-05'00'  \nJunhua Pan  \nMaterials and Processes Branch/ES4  \nMARYJANE O'ROURKE  \nDigitally signed by MARYJANE O'ROURKE  \nDate: 2026.06.23 18:54:03-05'00'  \nMary Jane O’Rourke  \nMaterials and Processes Branch/ES4  \n05/13/2026  \nDate  \n05/13/2026  \nDate  \nDate  \n\n| REVISIONS |  |  |\n| --- | --- | --- |\n| VERSION | DESCRIPTION | DATE |\n| Baseline | Original version | 06/1/1995 |\n| A | Revised version | 07/8/1997 |\n| B | Formatting , changed process owner, rewrite numerous sections for clarification and simplification , deleted requirement for WIR. | 07/07/1999 |\n| C | Major revision of document; changed the scope from non-structural to developmental and experimental hardware. Creating a new weld class, \"Class E\" . | 07/12/2016 |\n| D | Reviewed and revised for audit purposes. Several formatting corrections. Added definitions. | 06/02/2020 |\n| E | 2.0 Removed a paragraph for clarity. | 05/11/2026 |\n\n1.0 SCOPE  \nThis process specification provides the minimum requirements that govern the manual arc welding of experimental hardware that is non-structural and non-flight. Procedural and quality assurance requirements are given. All work instructions used during welding shall satisfy the requirements of this process specification and its applicable documents. This process specification is not intended for work performed by vendors or outside contracted organizations.  \n2.0 APPLICABILITY  \nThis process specification applies to manual arc welding of experimental hardware that is fabricated on-site and under the authority of NASA/Johnson Space Center (JSC) by any of the following types of welding processes:  \na. Flux Cored Arc Welding (FCAW) .  \nb. Gas Metal Arc Welding (GMAW) .  \nc. Gas Tungsten Arc Welding (GTAW) .  \nd. Shielded Metal Arc Welding (SMAW) .  \nTypical welds use a qualified welding procedure to ensure metallurgical and mechanical soundness of the weld based on Class A, B, or C classifications. Welds made on developmental and experimental hardware made under this PRC have no guarantee of weld quality and will be designated as Class E.  \nThis specification can only be used for parts that are non-critical and are not flight related, man-rated, load bearing, pressure retaining, and will not create a hazard to personnel or related equipment in the event of failure. Class E is the lowest integrity of welds produced and comes with no guarantee of weld quality.  \n3.0 USAGE  \nThis process specification shall be called out on the engineering sketch or drawing by a drawing note with the following general format. Official engineering drawings are not required for hardware fabricated under this specification:  \nWELD PER NASA/JSC PRC-0007, Class E  \n4.0  REFERENCES  \nThe specifications and standards listed are for reference only.  \na. NASA/JSC Documents  \nNASA/JSC PRC-0001  \nNASA/JSC PRC-0002  \nNASA/JSC PRC-0005  \nNASA/JSC JPR 8500.4 SOP-007.1  \nManual Arc Welding of Aluminum Alloy Hardware NASA/JSC Manual Arc Welding of Titanium Alloy Non-flight Hardware  \nManual Arc Welding of Carbon Steel and Nickel Alloy Hardware  \nEngineering Drawing System Requirements  \nPreparation and Revision of Process Specifications  \nb. American Welding Society (AWS)  \nANSI/AWS A2 .4 Standard Symbols for Welding, Brazing and Nondestructive Testing ANSI/AWS A3 .0 Standard Welding Terms and Definitions  \nANSI/AWS A5 .12 S","cbCaisnIZaXMHkfR","https://ap.wps.com/l/cbCaisnIZaXMHkfR","pdf",456854,"English","# 1.0 SCOPE\n# 2.0 APPLICABILITY\n# 3.0 USAGE\n# 4.0 REFERENCES\n# 5.0 MATERIAL REQUIREMENTS\n# 6.0 PROCESS REQUIREMENTS\n# 7.0 PROCESS QUALIFICATION","[{\"question\":\"What hardware types does this process specification cover?\",\"answer\":\"It governs manual arc welding of experimental hardware that is non-structural and non-flight, fabricated on-site under NASA/JSC authority.\"},{\"question\":\"Which welding processes are applicable under this specification?\",\"answer\":\"Flux Cored Arc Welding (FCAW), Gas Metal Arc Welding (GMAW), Gas Tungsten Arc Welding (GTAW), and Shielded Metal Arc Welding (SMAW) are listed as applicable.\"},{\"question\":\"What is Class E and what guarantee does it provide?\",\"answer\":\"Welds made under this PRC for developmental and experimental hardware are designated as Class E, which is the lowest integrity and comes with no guarantee of weld quality.\"}]","PRC-0007 - Process Specification for Manual Arc Welding of Developmental and Experimental Hardware | PDF",23]