NF EN ISO 5817
Welding - Fusion-welded joints in steel, nickel, titanium and their alloys (beam welding excluded) - Quality levels for imperfections
ISO 5817:2014 provides 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.(Quality levels for beam welded joints in steel are presented in ISO 13919‑1.) 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. Several types of loads are considered, e.g. static load, thermal load, corrosion load, pressure load. Additional guidance on fatigue loads is given. The quality levels refer to production and good workmanship. ISO 5817:2014 is applicable to non-alloy and alloy steels, nickel and nickel alloys, titanium and titanium alloys, manual, mechanized and automatic welding,all welding positions, all types of welds (e.g. butt welds, fillet welds and branch connections), and the following welding processes and their sub-processes as defined in ISO 4063: 11 metal-arc welding without gas protection; 12 submerged-arc welding; 13 gas-shielded metal-arc welding; 14 gas-shielded arc welding with non-consumable tungsten electrodes; 15 plasma arc welding; 31 oxy-fuel gas welding (for steel only).
ISO 5817:2014 provides 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.(Quality levels for beam welded joints in steel are presented in ISO 13919‑1.)
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. Several types of loads are considered, e.g. static load, thermal load, corrosion load, pressure load. Additional guidance on fatigue loads is given. The quality levels refer to production and good workmanship.
ISO 5817:2014 is applicable to non-alloy and alloy steels, nickel and nickel alloys, titanium and titanium alloys, manual, mechanized and automatic welding,all welding positions, all types of welds (e.g. butt welds, fillet welds and branch connections), and the following welding processes and their sub-processes as defined in ISO 4063: 11 metal-arc welding without gas protection; 12 submerged-arc welding; 13 gas-shielded metal-arc welding; 14 gas-shielded arc welding with non-consumable tungsten electrodes; 15 plasma arc welding; 31 oxy-fuel gas welding (for steel only).
Le présent document fournit des niveaux de qualité par rapport aux défauts dans les assemblages soudés par fusion (à l'exclusion du soudage par faisceau) sur tous types d'acier, de nickel, de titane et leurs alliages. Il s'applique à des épaisseurs de matériau supérieures à 0,5 mm.
<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>
- Avant-proposiv
- Introductionv
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1 Domaine d'application1
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2 Références normatives2
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3 Termes et définitions2
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4 Symboles3
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5 Évaluation des défauts4
- Annexe A (informative) Exemples de la détermination du pourcentage (%) de porosité23
- Annexe B (informative) Informations complémentaires et guide d'utilisation de la présente Norme internationale25
- Annexe C (informative) Lignes directrices supplémentaires pour les soudures dans l'acier soumises à la fatigue26
- Bibliographie29
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