This document defines the rules to be applied for symbolic representation of welded joints on technical drawings. This can include information about the geometry, manufacture, quality and testing of the welds. The principles of this document can also be applied to soldered and brazed joints.<\/p>\n
It is recognized that there are two different approaches in the global market to designate the arrow side and other side on drawings. In this document:<\/p>\n
clauses, tables and figures which carry the suffix letter “A” are applicable only to the symbolic representation system based on a dual reference line;<\/p>\n<\/li>\n
clauses, tables and figures which carry the suffix letter “B” are applicable only to the symbolic representation system based on a single reference line;<\/p>\n<\/li>\n
clauses, tables and figures which do not have the suffix letter “A” or “B” are applicable to both systems.<\/p>\n<\/li>\n<\/ul>\n
The symbols shown in this document can be combined with other symbols used on technical drawings, for example to show surface finish requirements.<\/p>\n
An alternative designation method is presented which can be used to represent welded joints on drawings by specifying essential design information such as weld dimensions, quality level, etc. The joint preparation and welding process(es) are then determined by the production unit in order to meet the specified requirements.<\/p>\n
\nNOTE Examples given in this document, including dimensions, are illustrative only and are intended to demonstrate the proper application of principles.<\/p>\n<\/blockquote>\n
PDF Catalog<\/h4>\n
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\n PDF Pages<\/th>\n PDF Title<\/th>\n<\/tr>\n \n 2<\/td>\n National foreword <\/td>\n<\/tr>\n \n 4<\/td>\n European foreword <\/td>\n<\/tr>\n \n 7<\/td>\n Foreword <\/td>\n<\/tr>\n \n 8<\/td>\n Introduction <\/td>\n<\/tr>\n \n 9<\/td>\n 1 Scope
2 Normative references
3 Terms and definitions <\/td>\n<\/tr>\n\n 13<\/td>\n 4 Welding symbol
4.1 General
4.2 Basic welding symbol <\/td>\n<\/tr>\n\n 14<\/td>\n 4.3 Welding symbol systems
4.4 Elementary symbols
4.4.1 General <\/td>\n<\/tr>\n\n 17<\/td>\n 4.4.2 Combinations of elementary symbols
4.4.3 Double-sided butt welds <\/td>\n<\/tr>\n\n 18<\/td>\n 4.5 Supplementary symbols
4.5.1 General <\/td>\n<\/tr>\n\n 21<\/td>\n 4.5.2 Weld-all-around symbol <\/td>\n<\/tr>\n \n 22<\/td>\n 4.5.3 Welds of the same type made from point to point <\/td>\n<\/tr>\n \n 23<\/td>\n 4.5.4 Field welds
4.5.5 Root reinforcement \u2014 Butt welds made from one side
4.5.6 Welds on flanged butt and flanged corner joints <\/td>\n<\/tr>\n\n 25<\/td>\n 4.6 Arrow line
4.6.1 General
4.6.2 Multiple arrow lines
4.6.3 Broken arrow line <\/td>\n<\/tr>\n\n 26<\/td>\n 4.7 Reference line and weld location
4.7.1 Reference line
4.7.2 Weld location <\/td>\n<\/tr>\n\n 27<\/td>\n 4.7.3 Multiple reference lines <\/td>\n<\/tr>\n \n 28<\/td>\n 4.8 Tail <\/td>\n<\/tr>\n \n 29<\/td>\n 5 Dimensioning of welds
5.1 General
5.2 Cross-sectional dimensions
5.3 Length dimensions
5.3.1 General
5.3.2 Intermittent welds <\/td>\n<\/tr>\n\n 30<\/td>\n 5.4 Butt welds
5.4.1 Penetration depth
5.4.2 Double-sided welds
5.4.3 Flanged butt welds
5.4.4 Flare bevel and flare-V butt welds
5.5 Fillet welds
5.5.1 Weld size
5.5.2 Deep penetration fillet welds <\/td>\n<\/tr>\n\n 31<\/td>\n 5.6 Plug welds in circular holes
5.7 Plug welds in elongated holes (slots)
5.8 Spot welds
5.9 Seam welds
5.10 Edge welds
5.11 Stud welds <\/td>\n<\/tr>\n\n 32<\/td>\n 5.12 Overlay welds
5.13 Stake welds <\/td>\n<\/tr>\n\n 45<\/td>\n 6 Dimensioning of joint preparations
6.1 General
6.2 Root gap
6.3 Included angle <\/td>\n<\/tr>\n\n 46<\/td>\n 6.4 Root radius and depth of root faces \u2014 U and J butt joints
6.5 Depth of joint preparation <\/td>\n<\/tr>\n\n 47<\/td>\n 6.6 Countersink angle for plug welds <\/td>\n<\/tr>\n \n 48<\/td>\n 7 Alternative butt weld symbol with required weld quality
7.1 General
7.2 Example <\/td>\n<\/tr>\n\n 49<\/td>\n Annex A (informative) Examples of the use of welding symbols <\/td>\n<\/tr>\n \n 59<\/td>\n Annex B (informative) Tolerances and transition points for weld types <\/td>\n<\/tr>\n \n 60<\/td>\n Annex C (informative) Alternative methods for designating intermittent butt and fillet welds <\/td>\n<\/tr>\n \n 63<\/td>\n Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Welding and allied processes. Symbolic representation on drawings. Welded joints<\/b><\/p>\n
\n\n
\n Published By<\/td>\n Publication Date<\/td>\n Number of Pages<\/td>\n<\/tr>\n \n BSI<\/b><\/a><\/td>\n 2022<\/td>\n 64<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":403814,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[431,2641],"product_tag":[],"class_list":{"0":"post-403805","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-25-160-40","7":"product_cat-bsi","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/403805","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/403814"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=403805"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=403805"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=403805"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}