ISO 5817-2023

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侵权投诉

Welding — Fusion-welded joints in

steel, nickel, titanium and their alloys

(beam welding excluded) — Quality

levels for imperfections

Soudage — Assemblages en acier, nickel, titane et leurs alliages

soudés par fusion (soudage par faisceau exclu) — Niveaux de qualité

par rapport aux défauts

INTERNATIONAL

STANDARD

ISO

5817

Fourth edition

2023-02

Reference number

ISO 5817:2023(E)

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

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





Website: www.iso.org

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ISO 5817:2023(E)

Foreword ........................................................................................................................................................................................................................................ iv

Introduction .................................................................................................................................................................................................................................v

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ..................................................................................................................................................................................... 1

3 Termsanddefinitions .................................................................................................................................................................................... 2

4 Symbols .......................................................................................................................................................................................................................... 3

5 Assessment of imperfections ........................................................................................................................................... .......................4

Annex A  Examples of determination of percentage (%) porosity...............................................21

Annex B  Additional criteria for welds in steel subject to fatigue ................................................ 23

Bibliography .............................................................................................................................................................................................................................26

iii

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标签： #ISO

摘要：

ISO 5817-2023 是国际标准化组织发布的最新版焊接质量标准，全称为《焊接—钢、镍、钛及其合金的熔化焊接头（束焊除外）—缺陷等级判定》。该标准主要规定了熔化焊接头中常见缺陷（如裂纹、气孔、未熔合、咬边、余高过大等）的允许范围及等级划分，适用于钢、镍、钛及其合金材料的焊接质量评估。ISO 5817-2023 将焊缝缺陷分为三个质量等级（B、C、D），其中B级要求最高，适用于承受高疲劳载荷或苛刻工况的结构；C级为中等要求，常用于一般承重结构；D级为最低合格要求，适用于非关键或次要部件。该标准

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ISO 5817-2023

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