{"id":70081,"date":"2026-05-17T17:29:46","date_gmt":"2026-05-17T17:29:46","guid":{"rendered":"https:\/\/evgroupchina.com\/encyclopedia-of-metal\/en-iso-1127\/"},"modified":"2026-05-19T15:33:25","modified_gmt":"2026-05-19T15:33:25","slug":"en-iso-1127","status":"publish","type":"wiki","link":"https:\/\/evgroupchina.com\/en\/encyclopedia-of-metal\/en-iso-1127\/","title":{"rendered":"EN ISO 1127"},"content":{"rendered":"

Technical regulation EN ISO 1127 for stainless steel pipes<\/h2>\n

The EN ISO 1127 standard is a key regulatory document defining the geometric parameters of pipes made from stainless alloys. The regulation specifies nominal values for outer diameters, wall thicknesses, limit deviations (tolerances), and the calculated theoretical mass per linear meter of the product. This standard ensures product unification, which is critical for designing pipeline systems and selecting metal products within the EV Group China lineup.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Outer diameter, mm
Series<\/td>\n		Thickness, mm<\/td>\n<\/tr>\n
1.0<\/b><\/td>\n1.2<\/b><\/td>\n1.6<\/b><\/td>\n2.0<\/b><\/td>\n2.3<\/b><\/td>\n2.6<\/b><\/td>\n2.9<\/b><\/td>\n3.2<\/b><\/td>\n3.6<\/b><\/td>\n4.0<\/b><\/td>\n4.5<\/b><\/td>\n<\/tr>\n
1<\/b><\/td>\n2<\/b><\/td>\n3<\/b><\/td>\nStandard values of nominal mass per unit length, kg\/m<\/b><\/td>\n<\/tr>\n
 <\/td>\n6<\/td>\n <\/td>\n0.125<\/td>\n0.144<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n<\/tr>\n
 <\/td>\n8<\/td>\n <\/td>\n0.176<\/td>\n0.204<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n<\/tr>\n
 <\/td>\n10<\/td>\n <\/td>\n0.225<\/td>\n0.264<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n<\/tr>\n
10.2<\/td>\n <\/td>\n <\/td>\n0.230<\/td>\n0.270<\/td>\n0.344<\/td>\n0.410<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n<\/tr>\n
 <\/td>\n12<\/td>\n <\/td>\n0.275<\/td>\n <\/td>\n0.416<\/td>\n0.500<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n<\/tr>\n
 <\/td>\n12.7<\/td>\n <\/td>\n0.293<\/td>\n0.345<\/td>\n0.445<\/td>\n0.536<\/td>\n0.599<\/td>\n0.658<\/td>\n0.711<\/td>\n0.761<\/td>\n <\/td>\n <\/td>\n <\/td>\n<\/tr>\n
13.5<\/td>\n <\/td>\n <\/td>\n0.313<\/td>\n0.369<\/td>\n0.477<\/td>\n0.576<\/td>\n0.645<\/td>\n–<\/td>\n0.789<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n<\/tr>\n
 <\/td>\n <\/td>\n14<\/td>\n0.326<\/td>\n0.445<\/td>\n0.496<\/td>\n0.601<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n<\/tr>\n
 <\/td>\n16<\/td>\n <\/td>\n0.376<\/td>\n0.577<\/td>\n0.701<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n<\/tr>\n
17.2<\/td>\n <\/td>\n <\/td>\n0.406<\/td>\n0.625<\/td>\n0.761<\/td>\n0.858<\/td>\n <\/td>\n <\/td>\n1.12<\/td>\n <\/td>\n <\/td>\n <\/td>\n<\/tr>\n
 <\/td>\n <\/td>\n18<\/td>\n0.425<\/td>\n <\/td>\n0.657<\/td>\n0.801<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n<\/tr>\n
 <\/td>\n19<\/td>\n <\/td>\n0.451<\/td>\n0.535<\/td>\n0.697<\/td>\n0.851<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n<\/tr>\n
 <\/td>\n20<\/td>\n <\/td>\n0.476<\/td>\n0.564<\/td>\n0.737<\/td>\n0.901<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n<\/tr>\n
21.3<\/td>\n <\/td>\n <\/td>\n0.509<\/td>\n <\/td>\n0.789<\/td>\n0.966<\/td>\n <\/td>\n1.22<\/td>\n <\/td>\n1.45<\/td>\n <\/td>\n1.74<\/td>\n <\/td>\n<\/tr>\n
 <\/td>\n <\/td>\n22<\/td>\n0.526<\/td>\n <\/td>\n <\/td>\n1.00<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n<\/tr>\n
 <\/td>\n25<\/td>\n <\/td>\n0.601<\/td>\n0.715<\/td>\n0.937<\/td>\n1.15<\/td>\n <\/td>\n1.46<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n<\/tr>\n
 <\/td>\n <\/td>\n25.4<\/td>\n <\/td>\n0.727<\/td>\n0.953<\/td>\n1.17<\/td>\n <\/td>\n1.48<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n<\/tr>\n
 <\/td>\n26.9<\/td>\n <\/td>\n0.649<\/td>\n <\/td>\n1.01<\/td>\n1.25<\/td>\n <\/td>\n1.58<\/td>\n1.75<\/td>\n1.90<\/td>\n <\/td>\n2.29<\/td>\n <\/td>\n<\/tr>\n
 <\/td>\n <\/td>\n30<\/td>\n <\/td>\n <\/td>\n1.14<\/td>\n1.40<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n<\/tr>\n
 <\/td>\n31.8<\/td>\n <\/td>\n <\/td>\n0.920<\/td>\n1.21<\/td>\n1.49<\/td>\n <\/td>\n1.90<\/td>\n <\/td>\n2.29<\/td>\n <\/td>\n2.78<\/td>\n <\/td>\n<\/tr>\n
 <\/td>\n32<\/td>\n <\/td>\n <\/td>\n0.925<\/td>\n <\/td>\n1.50<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n<\/tr>\n
33.7<\/td>\n <\/td>\n <\/td>\n0.818<\/td>\n0.976<\/td>\n1.29<\/td>\n1.58<\/td>\n1.81<\/td>\n2.02<\/td>\n <\/td>\n2.45<\/td>\n <\/td>\n <\/td>\n3.29<\/td>\n<\/tr>\n
 <\/td>\n <\/td>\n35<\/td>\n <\/td>\n1.02<\/td>\n <\/td>\n1.65<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n<\/tr>\n
 <\/td>\n38<\/td>\n <\/td>\n <\/td>\n1.11<\/td>\n1.46<\/td>\n1.81<\/td>\n <\/td>\n2.30<\/td>\n <\/td>\n2.79<\/td>\n <\/td>\n <\/td>\n <\/td>\n<\/tr>\n
 <\/td>\n40<\/td>\n <\/td>\n <\/td>\n1.17<\/td>\n1.54<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n<\/tr>\n
42.4<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n1.63<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n<\/tr>\n
 <\/td>\n <\/td>\n44.5<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n<\/tr>\n
48.3<\/td>\n <\/td>\n <\/td>\n1.25<\/td>\n1.49<\/td>\n1.87<\/td>\n2.31<\/td>\n–<\/td>\n2.97<\/td>\n–<\/td>\n3.61<\/td>\n4.03<\/td>\n–<\/td>\n–<\/td>\n<\/tr>\n
 <\/td>\n51<\/td>\n <\/td>\n1.98<\/td>\n2.46<\/td>\n3.15<\/td>\n3.83<\/td>\n–<\/td>\n<\/tr>\n
 <\/td>\n <\/td>\n54<\/td>\n2.10<\/td>\n2.60<\/td>\n3.35<\/td>\n <\/td>\n <\/td>\n<\/tr>\n
 <\/td>\n57<\/td>\n <\/td>\n <\/td>\n <\/td>\n2.22<\/td>\n2.75<\/td>\n3.34<\/td>\n <\/td>\n3.93<\/td>\n <\/td>\n5.11<\/td>\n5.83<\/td>\n <\/td>\n<\/tr>\n
60.3<\/td>\n <\/td>\n <\/td>\n2.35<\/td>\n2.92<\/td>\n3.76<\/td>\n4.17<\/td>\n4.58<\/td>\n<\/tr>\n
 <\/td>\n63.5<\/td>\n <\/td>\n2.48<\/td>\n3.08<\/td>\n3.96<\/td>\n <\/td>\n4.83<\/td>\n<\/tr>\n
 <\/td>\n70<\/td>\n <\/td>\n <\/td>\n <\/td>\n2.74<\/td>\n3.40<\/td>\n <\/td>\n <\/td>\n4.87<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n<\/tr>\n
76.1<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n2.98<\/td>\n3.70<\/td>\n4.25<\/td>\n4.78<\/td>\n5.32<\/td>\n <\/td>\n6.54<\/td>\n7.22<\/td>\n <\/td>\n<\/tr>\n
 <\/td>\n <\/td>\n82.5<\/td>\n <\/td>\n <\/td>\n3.49<\/td>\n 4.03<\/td>\n <\/td>\n <\/td>\n     <\/td>\n6.35<\/td>\n <\/td>\n <\/td>\n <\/td>\n<\/tr>\n
88.9<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n4.35<\/td>\n4.98<\/td>\n5.61<\/td>\n6.24<\/td>\n6.86<\/td>\n7.68<\/td>\n8.51<\/td>\n <\/td>\n<\/tr>\n
 <\/td>\n101.6<\/td>\n <\/td>\n <\/td>\n <\/td>\n4.98<\/td>\n <\/td>\n <\/td>\n7.17<\/td>\n <\/td>\n <\/td>\n9.77<\/td>\n <\/td>\n<\/tr>\n
114.3<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n4.52<\/td>\n5.62<\/td>\n <\/td>\n7.27<\/td>\n8.09<\/td>\n <\/td>\n9.98<\/td>\n <\/td>\n12.4<\/td>\n<\/tr>\n
139.7<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n5.53<\/td>\n6.89<\/td>\n <\/td>\n8.92<\/td>\n <\/td>\n11.0<\/td>\n <\/td>\n13.6<\/td>\n <\/td>\n<\/tr>\n
68.3<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n6.68<\/td>\n8.32<\/td>\n <\/td>\n10.8<\/td>\n <\/td>\n13.2<\/td>\n <\/td>\n16.4<\/td>\n18.5<\/td>\n<\/tr>\n
219.1<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n10.9<\/td>\n <\/td>\n14.1<\/td>\n <\/td>\n17.3<\/td>\n19.4<\/td>\n21.5<\/td>\n <\/td>\n<\/tr>\n
273<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n13.6<\/td>\n <\/td>\n17.6<\/td>\n <\/td>\n21.6<\/td>\n24.3<\/td>\n26.9<\/td>\n <\/td>\n<\/tr>\n
323.9<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n20.9<\/td>\n <\/td>\n25.7<\/td>\n <\/td>\n32.1<\/td>\n35.9<\/td>\n<\/tr>\n
355.6<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n22.9<\/td>\n <\/td>\n28.2<\/td>\n <\/td>\n35.2<\/td>\n <\/td>\n<\/tr>\n
406.4<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n26.3<\/td>\n <\/td>\n32.3<\/td>\n <\/td>\n40.3<\/td>\n <\/td>\n<\/tr>\n
457<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n36.3<\/td>\n <\/td>\n45.4<\/td>\n <\/td>\n<\/tr>\n
508<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n40.4<\/td>\n5.5<\/td>\n <\/td>\n <\/td>\n<\/tr>\n
610<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n48.6<\/td>\n <\/td>\n60.7<\/td>\n <\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Outer diameter, mm
Series<\/td>\n		Thickness, mm<\/td>\n<\/tr>\n
5.0<\/b><\/td>\n5.6<\/b><\/td>\n6.3<\/b><\/td>\n7.1<\/b><\/td>\n8.0<\/b><\/td>\n8.8<\/b><\/td>\n10.0<\/b><\/td>\n11.0<\/b><\/td>\n12.5<\/b><\/td>\n14.2<\/b><\/td>\n<\/tr>\n
1<\/b><\/td>\n2<\/b><\/td>\n3<\/b><\/td>\nStandard values of nominal mass per unit length, kg\/m<\/b><\/td>\n<\/tr>\n
42.4<\/td>\n <\/td>\n <\/td>\n4.68<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n<\/tr>\n
 <\/td>\n <\/td>\n44.5<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n<\/tr>\n
48.3<\/td>\n <\/td>\n <\/td>\n5.42<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n<\/tr>\n
60.3<\/td>\n <\/td>\n <\/td>\n <\/td>\n7.66<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n<\/tr>\n
76.1<\/td>\n <\/td>\n <\/td>\n 8.90<\/td>\n <\/td>\n <\/td>\n12.3<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n<\/tr>\n
88.9<\/td>\n <\/td>\n <\/td>\n <\/td>\n11.7<\/td>\n <\/td>\n <\/td>\n16.2<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n<\/tr>\n
101.6<\/td>\n <\/td>\n <\/td>\n <\/td>\n13.5<\/td>\n <\/td>\n <\/td>\n18.8<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n<\/tr>\n
114.3<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n17.1<\/td>\n <\/td>\n <\/td>\n23.2<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n<\/tr>\n
139.7<\/td>\n <\/td>\n <\/td>\n16.8<\/td>\n <\/td>\n21.0<\/td>\n23.5<\/td>\n <\/td>\n <\/td>\n32.5<\/td>\n <\/td>\n <\/td>\n <\/td>\n<\/tr>\n
168.3<\/td>\n <\/td>\n <\/td>\n20.4<\/td>\n <\/td>\n <\/td>\n28.6<\/td>\n <\/td>\n <\/td>\n <\/td>\n43.3<\/td>\n <\/td>\n <\/td>\n<\/tr>\n
219.1<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n33.6<\/td>\n <\/td>\n42.2<\/td>\n <\/td>\n <\/td>\n <\/td>\n64.7<\/td>\n <\/td>\n<\/tr>\n
273<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n42.0<\/td>\n <\/td>\n <\/td>\n <\/td>\n65.9<\/td>\n <\/td>\n81.5<\/td>\n92.0<\/td>\n<\/tr>\n
323.9<\/td>\n <\/td>\n <\/td>\n39.9<\/td>\n <\/td>\n <\/td>\n56.3<\/td>\n <\/td>\n <\/td>\n78.6<\/td>\n <\/td>\n97.4<\/td>\n <\/td>\n<\/tr>\n
355.6<\/td>\n <\/td>\n <\/td>\n43.8<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n86.5<\/td>\n94.9<\/td>\n108<\/td>\n <\/td>\n<\/tr>\n
406.4<\/td>\n <\/td>\n <\/td>\n50.2<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n99.3<\/td>\n <\/td>\n123<\/td>\n <\/td>\n<\/tr>\n
457<\/td>\n <\/td>\n <\/td>\n56.5<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n112<\/td>\n <\/td>\n139<\/td>\n157<\/td>\n<\/tr>\n
508<\/td>\n <\/td>\n <\/td>\n62.9<\/td>\n70.4<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n137<\/td>\n155<\/td>\n176<\/td>\n<\/tr>\n
610<\/td>\n <\/td>\n <\/td>\n <\/td>\n84.8<\/td>\n95.2<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n187<\/td>\n112<\/td>\n<\/tr>\n
711<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n125<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n<\/tr>\n
813<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n161<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n<\/tr>\n
914<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n199<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n<\/tr>\n
1016<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n252<\/td>\n <\/td>\n <\/td>\n <\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":0,"template":"","meta":[],"wiki_category":[120],"class_list":["post-70081","wiki","type-wiki","status-publish","hentry","wiki_category-iso"],"_links":{"self":[{"href":"https:\/\/evgroupchina.com\/en\/wp-json\/wp\/v2\/wiki\/70081","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/evgroupchina.com\/en\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/evgroupchina.com\/en\/wp-json\/wp\/v2\/types\/wiki"}],"version-history":[{"count":0,"href":"https:\/\/evgroupchina.com\/en\/wp-json\/wp\/v2\/wiki\/70081\/revisions"}],"wp:attachment":[{"href":"https:\/\/evgroupchina.com\/en\/wp-json\/wp\/v2\/media?parent=70081"}],"wp:term":[{"taxonomy":"wiki_category","embeddable":true,"href":"https:\/\/evgroupchina.com\/en\/wp-json\/wp\/v2\/wiki_category?post=70081"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}