{"id":302558,"date":"2024-10-19T20:40:18","date_gmt":"2024-10-19T20:40:18","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-755-72016\/"},"modified":"2024-10-25T18:12:01","modified_gmt":"2024-10-25T18:12:01","slug":"bs-en-755-72016","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-755-72016\/","title":{"rendered":"BS EN 755-7:2016"},"content":{"rendered":"<p>This European Standard specifies the tolerances on dimensions and form for aluminium and aluminium alloy extruded seamless tubes with an outside diameter ( <i>OD<\/i>) from 8&nbsp;mm to 450&nbsp;mm (round tube, see <span class=\"xref\">Figure&nbsp;1<\/span>) or with a cross section contained within a circumscribing circle ( <i>CD<\/i>) from 10&nbsp;mm to 350&nbsp;mm (other than round tube, see <span class=\"xref\">Figure&nbsp;2<\/span>), supplied in straight lengths.<\/p>\n<p>This European Standard only applies to tube produced by the seamless die\/mandrel method of extrusion. This standard applies to extruded seamless tube for general engineering applications only.<\/p>\n<p>The temper designations used in this part are according to <span class=\"std\"> <span class=\"std-ref\">EN&nbsp;515<\/span> <\/span>.<\/p>\n<p>This European Standard does not apply to:<\/p>\n<ul>\n<li>\n<p>extruded tubes produced by porthole\/bridge method ( <span class=\"std\"> <span class=\"std-ref\">EN&nbsp;755\u20118<\/span> <\/span>),<\/p>\n<\/li>\n<li>\n<p>tubes delivered in coils ( <span class=\"std\"> <span class=\"std-ref\">EN&nbsp;13957<\/span> <\/span>),<\/p>\n<\/li>\n<li>\n<p>coiled tubes cut to length ( <span class=\"std\"> <span class=\"std-ref\">EN&nbsp;13957<\/span> <\/span>).<\/p>\n<\/li>\n<\/ul>\n<p><i>[Image removed.]<\/i><\/p>\n<p><i>[Image removed.]<\/i><\/p>\n<h4>PDF Catalog<\/h4>\n<table border=\"1px\" class=\"des-table\">\n<tr>\n<th>PDF Pages<\/th>\n<th>PDF Title<\/th>\n<\/tr>\n<tr>\n<td><b>4<b><\/td>\n<td>Contents Page  <\/td>\n<\/tr>\n<tr>\n<td><b>5<b><\/td>\n<td>European foreword  <\/td>\n<\/tr>\n<tr>\n<td><b>6<b><\/td>\n<td>1 Scope <br \/> Figure 1 \u2014 Round tube <br \/> Figure 2 \u2014 Circumscribing circle for other than round tube  <\/td>\n<\/tr>\n<tr>\n<td><b>7<b><\/td>\n<td>2 Normative references <br \/> 3 Alloy groups <br \/> Table 1 \u2014 Alloy groups <br \/> 4 Tolerances on dimensions <br \/> 4.1 General <br \/> 4.2 Diameter &#8211; Round tube  <\/td>\n<\/tr>\n<tr>\n<td><b>8<b><\/td>\n<td>Table 2 \u2014 Tolerances on diameter for round tube <br \/> 4.3 Width, depth or width across flats &#8211; squares, rectangles, hexagons, octagons  <\/td>\n<\/tr>\n<tr>\n<td><b>9<b><\/td>\n<td>Table 3 \u2014 Tolerances on width, depth or width across flats <br \/> 4.4 Wall thickness variation (eccentricity)  <\/td>\n<\/tr>\n<tr>\n<td><b>10<b><\/td>\n<td>Table 4 \u2014 Tolerances on wall thickness variation (eccentricity) for round tubes <br \/> Table 5 \u2014 Tolerances on wall thickness for other than round tubes <br \/> 4.5 Length  <\/td>\n<\/tr>\n<tr>\n<td><b>11<b><\/td>\n<td>Table 6 \u2014 Tolerances on fixed length <br \/> 4.6 Squareness of cut ends <br \/> 5 Tolerances on form <br \/> 5.1 General <br \/> 5.2 Straightness  <\/td>\n<\/tr>\n<tr>\n<td><b>12<b><\/td>\n<td>Figure 3 \u2014 Measurement of the deviation from straightness <br \/> Table 7 \u2014 Straightness tolerances of round tube <br \/> 5.3 Convexity-Concavity  <\/td>\n<\/tr>\n<tr>\n<td><b>13<b><\/td>\n<td>Figure 4 \u2014 Measurement of convexity\u2013concavity <br \/> Table 8 \u2014 Convexity-Concavity tolerances <br \/> 5.4 Twist  <\/td>\n<\/tr>\n<tr>\n<td><b>14<b><\/td>\n<td>Figure 5 \u2014 Measurement of twist <br \/> Table 9 \u2014 Twist tolerances <br \/> 5.5 Angularity  <\/td>\n<\/tr>\n<tr>\n<td><b>15<b><\/td>\n<td>Figure 6 \u2014 Measurement of deviation from square <br \/> Table 10 \u2014 Squareness tolerances for square and rectangular tubes <br \/> 5.6 Corner and fillet radii <br \/> Table 11 \u2014 Maximum allowable corner and fillet radii  <\/td>\n<\/tr>\n<tr>\n<td><b>16<b><\/td>\n<td>Table 12 \u2014 Maximum allowable deviation from specified corner and fillet radii <br \/> 5.7 Depth of dents for round tube  <\/td>\n<\/tr>\n<tr>\n<td><b>17<b><\/td>\n<td>Annex A  (informative)  Wall thickness variation (eccentricity) <br \/> A.1 General <br \/> A.2 Specifying round tube sizes and tolerances <br \/> A.2.1 General <br \/> Figure A.1 \u2014 Minimum and maximum values of the tube wall thickness <br \/> A.2.2 Wall thickness variation for tubes specified as OD \u00d7 t or ID \u00d7 t  <\/td>\n<\/tr>\n<tr>\n<td><b>18<b><\/td>\n<td>A.2.3 Wall thickness variation for tubes specified as OD \u00d7 ID  <\/td>\n<\/tr>\n<tr>\n<td><b>19<b><\/td>\n<td>Bibliography  <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p><b>Aluminium and aluminium alloys. Extruded rod\/bar, tube and profiles &#8211; Seamless tubes, tolerances on dimensions and form<\/b><\/p>\n<table class=\"shortdes-table\" style=\"width: 100%\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td>Published By<\/td>\n<td>Publication Date<\/td>\n<td>Number of Pages<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/pdfstandards.shop\/product-category\/publishers\/bsi\/\"><b>BSI<\/b><\/a><\/td>\n<td>2016<\/td>\n<td>22<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":302560,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[1128,2641],"product_tag":[],"class_list":{"0":"post-302558","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-77-150-10","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\/302558","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\/302560"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=302558"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=302558"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=302558"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}