GB/T 47576-2026 无损检测 石化化工装置静设备矫顽力检测方法

ICS19.100

CCSJ04

中华人民共和国国家标准

GB/T47576—2026

无损检测石化化工装置静设备矫顽力

检测方法

Non⁃destructivetesting—Coercivitytestingmethodforstaticequipmentsof

petroleumandchemicalplant

2026⁃05⁃25发布2026⁃12⁃01实施

国家市场监督管理总局

国家标准化管理委员会发布

GB/T47576—2026

目次

前言··························································································································Ⅲ

1范围·······················································································································1

2规范性引用文件········································································································1

3术语和定义··············································································································1

4原理·······················································································································1

5检测设备和试块········································································································3

6检测工艺规程···········································································································5

7检测前的准备···········································································································5

8检测实施·················································································································6

9检测结果的评价········································································································7

10检测记录与报告······································································································8

附录A（资料性）灵敏度测试·························································································9

附录B（资料性）Q345R焊接试板应力集中程度评价··························································10

参考文献····················································································································14

Ⅰ

GB/T47576—2026

前言

本文件按照GB/T1.1—2020《标准化工作导则第1部分：标准化文件的结构和起草规则》的规

定起草。

请注意本文件的某些内容可能涉及专利。本文件的发布机构不承担识别专利的责任。

本文件由全国无损检测标准化技术委员会（SAC/TC56）提出并归口。

本文件起草单位：宁波市特种设备检验研究院、上海材料研究所有限公司、丽水市特种设备检测

院、湖南安广检验检测有限公司、内蒙古自治区特种设备检验研究院、浙江省特种设备科学研究院、

东营市特种设备检验研究院、北京精准检科技有限公司、宁波天翼石化重型设备制造有限公司。

本文件主要起草人：沈正祥、蒋建生、周晓峰、王杜、许波、丁杰、张峰、陆树华、曹志峰、赵准、武爱兵、

陈虎、李武、李斌彬、吴彩保、高礼根。

Ⅲ

GB/T47576—2026

无损检测石化化工装置静设备矫顽力

检测方法

1范围

本文件描述了石化化工装置静设备矫顽力检测方法，规定了矫顽力检测的原理、检测设备和试块、

检测工艺规程、检测前的准备、检测实施、检测结果的评价和检测记录与报告。

本文件适用于石化化工装置中材质为碳钢、低合金钢的压力容器、压力管道、大型常压储罐等静设

备的矫顽力检测。石化化工装置动设备和其他行业设备的矫顽力检测参照执行。

2规范性引用文件

下列文件中的内容通过文中的规范性引用而构成本文件必不可少的条款。其中，注日期的引用文

件，仅该日期对应的版本适用于本文件；不注日期的引用文件，其最新版本（包括所有的修改单）适用于

本文件。

GB/T228.1金属材料拉伸试验第1部分：室温试验方法

GB/T2900.60电工术语电磁学

GB/T10123金属和合金的腐蚀术语

GB/T12604.5无损检测术语磁粉检测

GB/T13888在开磁路中测量磁性材料矫顽力（至160kA/m）的方法

3术语和定义

GB/T2900.60、GB/T10123和GB/T12604.5界定的以及下列术语和定义适用于本文件。

3.1

钉扎效应pinningeffect

铁磁性材料内部的晶界、缺陷、夹杂和应力等对畴壁运动的束缚作用。

3.2

力⁃磁耦合效应magneto⁃mechanicaleffect

应力⁃应变对铁磁性材料磁化过程的影响规律。

3.3

应力集中stressconcentration

被检工件局部区域的最大应力值高于平均应力值的现象。

4原理

4.1矫顽力

矫顽力是磁畴壁运动钉扎效应的量化反映，矫顽力检测结果与被检工件自身的微观组织密切相

关，如体心立方晶体结构、合金元素掺杂、晶粒细化、第二相析出与位错增殖等均会使矫顽力升高；也受

被检工件的物理属性影响，如相同材质壁厚越小，矫顽力越大；同时被检工件的载荷工况也会产生显著

1