ISO/TC 44/SC 10/WG 1

Project No.ISO 5817:2023
Title<p class="MsoBodyText"><span lang="EN-GB">This document specifies quality levels of imperfections in fusion-welded joints (except for beam welding) in all types of steel, nickel, titanium and their alloys. It applies to material thickness ≥ 0,5 mm. It covers fully penetrated butt welds and all fillet welds. Its principles can also be applied to partial-penetration butt welds.</span></p> <p class="MsoBodyText"><span lang="EN-GB">Quality levels for beam-welded joints in steel are presented in ISO 13919-1.</span></p> <p class="MsoBodyText"><span lang="EN-GB">Three quality levels are given in order to permit application to a wide range of welded fabrication. They are designated by symbols B, C and D. Quality level B corresponds to the highest requirement on the finished weld.</span></p> <p class="MsoBodyText"><span lang="EN-GB">Several types of loads are considered, e.g. static load, thermal load, corrosion load, pressure load. Additional guidance on fatigue loads is given in Annex B.</span></p> <p class="MsoBodyText"><span lang="EN-GB">The quality levels refer to production and good workmanship.</span></p> <p class="MsoBodyText"><span lang="EN-GB">This document is applicable to:</span></p> <p class="ListNumber1" style="mso-list: l0 level1 lfo2;"><!-- [if !supportLists]--><span lang="EN-GB" style="mso-fareast-font-family: Cambria; mso-bidi-font-family: Cambria;"><span style="mso-list: Ignore;">a)<span style="font: 7.0pt 'Times New Roman';">       </span></span></span><!--[endif]--><span lang="EN-GB">non-alloy and alloy steels;</span></p> <p class="ListNumber1" style="mso-list: l0 level1 lfo2;"><!-- [if !supportLists]--><span lang="EN-GB" style="mso-fareast-font-family: Cambria; mso-bidi-font-family: Cambria;"><span style="mso-list: Ignore;">b)<span style="font: 7.0pt 'Times New Roman';">       </span></span></span><!--[endif]--><span lang="EN-GB">nickel and nickel alloys;</span></p> <p class="ListNumber1" style="mso-list: l0 level1 lfo2;"><!-- [if !supportLists]--><span lang="EN-GB" style="mso-fareast-font-family: Cambria; mso-bidi-font-family: Cambria;"><span style="mso-list: Ignore;">c)<span style="font: 7.0pt 'Times New Roman';">        </span></span></span><!--[endif]--><span lang="EN-GB">titanium and titanium alloys;</span></p> <p class="ListNumber1" style="mso-list: l0 level1 lfo2;"><!-- [if !supportLists]--><span lang="EN-GB" style="mso-fareast-font-family: Cambria; mso-bidi-font-family: Cambria;"><span style="mso-list: Ignore;">d)<span style="font: 7.0pt 'Times New Roman';">       </span></span></span><!--[endif]--><span lang="EN-GB">manual, mechanized and automatic welding;</span></p> <p class="ListNumber1" style="mso-list: l0 level1 lfo2;"><!-- [if !supportLists]--><span lang="EN-GB" style="mso-fareast-font-family: Cambria; mso-bidi-font-family: Cambria;"><span style="mso-list: Ignore;">e)<span style="font: 7.0pt 'Times New Roman';">       </span></span></span><!--[endif]--><span lang="EN-GB">all welding positions;</span></p> <p class="ListNumber1" style="mso-list: l0 level1 lfo2;"><!-- [if !supportLists]--><span lang="EN-GB" style="mso-fareast-font-family: Cambria; mso-bidi-font-family: Cambria;"><span style="mso-list: Ignore;">f)<span style="font: 7.0pt 'Times New Roman';">         </span></span></span><!--[endif]--><span lang="EN-GB">all types of welds, e.g. butt welds, fillet welds and branch connections;</span></p> <p class="ListNumber1" style="mso-list: l0 level1 lfo2;"><!-- [if !supportLists]--><span lang="EN-GB" style="mso-fareast-font-family: Cambria; mso-bidi-font-family: Cambria;"><span style="mso-list: Ignore;">g)<span style="font: 7.0pt 'Times New Roman';">       </span></span></span><!--[endif]--><span lang="EN-GB">the following welding processes and their sub-processes, as defined in ISO 4063:</span></p> <p class="MsoListContinue2" style="mso-list: l1 level1 lfo1;"><!-- [if !supportLists]--><span lang="EN-GB" style="mso-fareast-font-family: Cambria; mso-bidi-font-family: Cambria;"><span style="mso-list: Ignore;">—<span style="font: 7.0pt 'Times New Roman';">     </span></span></span><!--[endif]--><span lang="EN-GB">11 metal arc welding without gas protection;</span></p> <p class="MsoListContinue2" style="mso-list: l1 level1 lfo1;"><!-- [if !supportLists]--><span lang="EN-GB" style="mso-fareast-font-family: Cambria; mso-bidi-font-family: Cambria;"><span style="mso-list: Ignore;">—<span style="font: 7.0pt 'Times New Roman';">     </span></span></span><!--[endif]--><span lang="EN-GB">12 submerged arc welding;</span></p> <p class="MsoListContinue2" style="mso-list: l1 level1 lfo1;"><!-- [if !supportLists]--><span lang="EN-GB" style="mso-fareast-font-family: Cambria; mso-bidi-font-family: Cambria;"><span style="mso-list: Ignore;">—<span style="font: 7.0pt 'Times New Roman';">     </span></span></span><!--[endif]--><span lang="EN-GB">13 gas-shielded metal arc welding;</span></p> <p class="MsoListContinue2" style="mso-list: l1 level1 lfo1;"><!-- [if !supportLists]--><span lang="EN-GB" style="mso-fareast-font-family: Cambria; mso-bidi-font-family: Cambria;"><span style="mso-list: Ignore;">—<span style="font: 7.0pt 'Times New Roman';">     </span></span></span><!--[endif]--><span lang="EN-GB">14 gas-shielded arc welding with non-consumable tungsten electrode;</span></p> <p class="MsoListContinue2" style="mso-list: l1 level1 lfo1;"><!-- [if !supportLists]--><span lang="EN-GB" style="mso-fareast-font-family: Cambria; mso-bidi-font-family: Cambria;"><span style="mso-list: Ignore;">—<span style="font: 7.0pt 'Times New Roman';">     </span></span></span><!--[endif]--><span lang="EN-GB">15 plasma arc welding;</span></p> <p class="MsoListContinue2" style="mso-list: l1 level1 lfo1;"><!-- [if !supportLists]--><span lang="EN-GB" style="mso-fareast-font-family: Cambria; mso-bidi-font-family: Cambria;"><span style="mso-list: Ignore;">—<span style="font: 7.0pt 'Times New Roman';">     </span></span></span><!--[endif]--><span lang="EN-GB">31 oxyfuel gas welding (for steel only).</span></p> <p class="MsoBodyText"><span lang="EN-GB">Metallurgical aspects, such as grain size and hardness, are not covered by this document.</span></p>
Registration number (WIID)80209
Scope<p class="MsoBodyText"><span lang="EN-GB">This document specifies quality levels of imperfections in fusion-welded joints (except for beam welding) in all types of steel, nickel, titanium and their alloys. It applies to material thickness ≥ 0,5 mm. It covers fully penetrated butt welds and all fillet welds. Its principles can also be applied to partial-penetration butt welds.</span></p> <p class="MsoBodyText"><span lang="EN-GB">Quality levels for beam-welded joints in steel are presented in ISO 13919-1.</span></p> <p class="MsoBodyText"><span lang="EN-GB">Three quality levels are given in order to permit application to a wide range of welded fabrication. They are designated by symbols B, C and D. Quality level B corresponds to the highest requirement on the finished weld.</span></p> <p class="MsoBodyText"><span lang="EN-GB">Several types of loads are considered, e.g. static load, thermal load, corrosion load, pressure load. Additional guidance on fatigue loads is given in Annex B.</span></p> <p class="MsoBodyText"><span lang="EN-GB">The quality levels refer to production and good workmanship.</span></p> <p class="MsoBodyText"><span lang="EN-GB">This document is applicable to:</span></p> <p class="ListNumber1" style="mso-list: l0 level1 lfo2;"><!-- [if !supportLists]--><span lang="EN-GB" style="mso-fareast-font-family: Cambria; mso-bidi-font-family: Cambria;"><span style="mso-list: Ignore;">a)<span style="font: 7.0pt 'Times New Roman';">       </span></span></span><!--[endif]--><span lang="EN-GB">non-alloy and alloy steels;</span></p> <p class="ListNumber1" style="mso-list: l0 level1 lfo2;"><!-- [if !supportLists]--><span lang="EN-GB" style="mso-fareast-font-family: Cambria; mso-bidi-font-family: Cambria;"><span style="mso-list: Ignore;">b)<span style="font: 7.0pt 'Times New Roman';">       </span></span></span><!--[endif]--><span lang="EN-GB">nickel and nickel alloys;</span></p> <p class="ListNumber1" style="mso-list: l0 level1 lfo2;"><!-- [if !supportLists]--><span lang="EN-GB" style="mso-fareast-font-family: Cambria; mso-bidi-font-family: Cambria;"><span style="mso-list: Ignore;">c)<span style="font: 7.0pt 'Times New Roman';">        </span></span></span><!--[endif]--><span lang="EN-GB">titanium and titanium alloys;</span></p> <p class="ListNumber1" style="mso-list: l0 level1 lfo2;"><!-- [if !supportLists]--><span lang="EN-GB" style="mso-fareast-font-family: Cambria; mso-bidi-font-family: Cambria;"><span style="mso-list: Ignore;">d)<span style="font: 7.0pt 'Times New Roman';">       </span></span></span><!--[endif]--><span lang="EN-GB">manual, mechanized and automatic welding;</span></p> <p class="ListNumber1" style="mso-list: l0 level1 lfo2;"><!-- [if !supportLists]--><span lang="EN-GB" style="mso-fareast-font-family: Cambria; mso-bidi-font-family: Cambria;"><span style="mso-list: Ignore;">e)<span style="font: 7.0pt 'Times New Roman';">       </span></span></span><!--[endif]--><span lang="EN-GB">all welding positions;</span></p> <p class="ListNumber1" style="mso-list: l0 level1 lfo2;"><!-- [if !supportLists]--><span lang="EN-GB" style="mso-fareast-font-family: Cambria; mso-bidi-font-family: Cambria;"><span style="mso-list: Ignore;">f)<span style="font: 7.0pt 'Times New Roman';">         </span></span></span><!--[endif]--><span lang="EN-GB">all types of welds, e.g. butt welds, fillet welds and branch connections;</span></p> <p class="ListNumber1" style="mso-list: l0 level1 lfo2;"><!-- [if !supportLists]--><span lang="EN-GB" style="mso-fareast-font-family: Cambria; mso-bidi-font-family: Cambria;"><span style="mso-list: Ignore;">g)<span style="font: 7.0pt 'Times New Roman';">       </span></span></span><!--[endif]--><span lang="EN-GB">the following welding processes and their sub-processes, as defined in ISO 4063:</span></p> <p class="MsoListContinue2" style="mso-list: l1 level1 lfo1;"><!-- [if !supportLists]--><span lang="EN-GB" style="mso-fareast-font-family: Cambria; mso-bidi-font-family: Cambria;"><span style="mso-list: Ignore;">—<span style="font: 7.0pt 'Times New Roman';">     </span></span></span><!--[endif]--><span lang="EN-GB">11 metal arc welding without gas protection;</span></p> <p class="MsoListContinue2" style="mso-list: l1 level1 lfo1;"><!-- [if !supportLists]--><span lang="EN-GB" style="mso-fareast-font-family: Cambria; mso-bidi-font-family: Cambria;"><span style="mso-list: Ignore;">—<span style="font: 7.0pt 'Times New Roman';">     </span></span></span><!--[endif]--><span lang="EN-GB">12 submerged arc welding;</span></p> <p class="MsoListContinue2" style="mso-list: l1 level1 lfo1;"><!-- [if !supportLists]--><span lang="EN-GB" style="mso-fareast-font-family: Cambria; mso-bidi-font-family: Cambria;"><span style="mso-list: Ignore;">—<span style="font: 7.0pt 'Times New Roman';">     </span></span></span><!--[endif]--><span lang="EN-GB">13 gas-shielded metal arc welding;</span></p> <p class="MsoListContinue2" style="mso-list: l1 level1 lfo1;"><!-- [if !supportLists]--><span lang="EN-GB" style="mso-fareast-font-family: Cambria; mso-bidi-font-family: Cambria;"><span style="mso-list: Ignore;">—<span style="font: 7.0pt 'Times New Roman';">     </span></span></span><!--[endif]--><span lang="EN-GB">14 gas-shielded arc welding with non-consumable tungsten electrode;</span></p> <p class="MsoListContinue2" style="mso-list: l1 level1 lfo1;"><!-- [if !supportLists]--><span lang="EN-GB" style="mso-fareast-font-family: Cambria; mso-bidi-font-family: Cambria;"><span style="mso-list: Ignore;">—<span style="font: 7.0pt 'Times New Roman';">     </span></span></span><!--[endif]--><span lang="EN-GB">15 plasma arc welding;</span></p> <p class="MsoListContinue2" style="mso-list: l1 level1 lfo1;"><!-- [if !supportLists]--><span lang="EN-GB" style="mso-fareast-font-family: Cambria; mso-bidi-font-family: Cambria;"><span style="mso-list: Ignore;">—<span style="font: 7.0pt 'Times New Roman';">     </span></span></span><!--[endif]--><span lang="EN-GB">31 oxyfuel gas welding (for steel only).</span></p> <p class="MsoBodyText"><span lang="EN-GB">Metallurgical aspects, such as grain size and hardness, are not covered by this document.</span></p>
StatusStandarts spēkā
ICS group25.160.40