ISO 8249-2018

VIP免费

Carl 2024-09-08 8 2.14MB 34 页 12星币

侵权投诉

Welding — Determination of Ferrite

Number (FN) in austenitic and duplex

ferritic-austenitic Cr-Ni stainless steel

weld metals

Soudage — Détermination de l'indice de ferrite (FN) dans le

métal fondu en acier inoxydable austénitique et duplex ferritique-

austénitique au chrome-nickel

INTERNATIONAL

STANDARD

ISO

8249

Third edition

2018-07

Reference number

ISO 8249:2018(E)







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













Website: www.iso.org



ISO 8249:2018(E)

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

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

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

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

3 Termsanddefinitions ..................................................................................................................................................................................... 1

4 Principle ........................................................................................................................................................................................................................ 1

5 Calibration .................................................................................................................................................................................................................. 2

  ....................................................................................................................................................... 2

  ............................................................................................................................................................................................................ 2

5.3 Instruments ............................................................................................................................................................................................... 2

  ................................................................................................................................................................................... 3

6 Standard method for covered electrode test pads ............................................................................................................ 5

  ...................................................................................................................... 5

  ............................................................................................................................... 5

  .................................................................................................................................................................................................... 6

  ............................................................................................................................................................... 6

  ........................................................................................................................................ 6

6.3.3 Reporting ................................................................................................................................................................................ 7

7 Standard methods for test pads of other processes and for production welds .................................. 7

  .......................................................................................... 7

  .................................................................................................................................................................................. 7

8 Other methods ........................................................................................................................................................................................................ 7

8.1 Methods ......................................................................................................................................................................................................... 7

  ................................................................................................................................................................... 8

9 Procedures used to prepare secondary standards for delta ferrite in austenitic

stainless steel weld metal ........................................................................................................................................................................... 8

Annex A  Manufacture of secondary standards by strip cladding ..................................................... 9

Annex B  Manufacture of secondary standards by centrifugal chill casting ........................19

Bibliography .............................................................................................................................................................................................................................27

Contents 

文档加载中……请稍候！
如果长时间未打开，您也可以点击刷新试试。

下载文档到电脑，查找使用更方便

亲，本站95%以上的标准规范都面向会员免费，办理VIP会员下载更省钱，平均每篇不到2元

立即下载 VIP免费下载

标签： #ISO

摘要：

ISO 8249-2018是国际标准化组织发布的一项关于奥氏体不锈钢焊缝中铁素体含量测定的最新标准规范。该标准正式名称为“焊接——奥氏体及奥氏体-铁素体双相不锈钢焊缝金属铁素体含量的测定”，主要规定了使用磁性检测方法（又称磁性测量法）来定量评估不锈钢焊缝中残余或可控铁素体含量的技术要求和操作流程。与2000年发布的旧版标准相比，ISO 8249-2018在测量范围、校准程序及适用仪器类型上进行了重要修订与扩展。该标准对于保证焊接结构在高温、腐蚀性环境下的抗热裂性能、耐应力腐蚀性能以及力学稳定性具

展开>> 收起<<

ISO 8249-2018.pdf

共34页,预览4页

还剩页未读，继续阅读

声明：本文档系会员上传，若文档所含内容侵犯了您的版权或隐私，请立即通知，我们立即给予侵权申诉删除！

ISO 8249-2018

相关推荐

开通VIP享超值会员特权

相关内容

热门标签

举报选择: