Magnetism in Stainless Steel Fasteners（磁性不锈钢紧固件）.pdfVIP

下载本文档

5
0
约 4页
2017-09-02 发布于浙江
举报
版权申诉

Magnetism in Stainless Steel Fasteners（磁性不锈钢紧固件）.pdf

1、有哪些信誉好的足球投注网站（book118）网站文档一经付费（服务费），不意味着购买了该文档的版权，仅供个人/单位学习、研究之用，不得用于商业用途，未经授权，严禁复制、发行、汇编、翻译或者网络传播等，侵权必究。。
2、本站所有内容均由合作方或网友上传，本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺！文档内容仅供研究参考，付费前请自行鉴别。如您付费，意味着您自己接受本站规则且自行承担风险，本站不退款、不进行额外附加服务；查看《如何避免下载的几个坑》。如果您已付费下载过本站文档，您可以点击这里二次下载。
3、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等，请点击“版权申诉”（推荐），也可以打举报电话：400-050-0827(电话支持时间：9:00-18:30)。
4、该文档为VIP文档，如果想要下载，成为VIP会员后，下载免费。
5、成为VIP后，下载本文档将扣除1次下载权益。下载后，不支持退款、换文档。如有疑问请联系我们。
6、成为VIP后，您将拥有八大权益，权益包括：VIP文档下载权益、阅读免打扰、文档格式转换、高级专利检索、专属身份标志、高级客服、多端互通、版权登记。
7、VIP文档为合作方或网友上传，每下载1次，网站将根据用户上传文档的质量评分、类型等，对文档贡献者给予高额补贴、流量扶持。如果你也想贡献VIP文档。上传文档

Magnetism in Stainless Steel Fasteners（磁性不锈钢紧固件）

Magnetism in Stainless Steel Fasteners “The stainless steel fasteners I received stick to a magnet.” This is one of the more frequently heard complaints at FEDS HQ in Winona, MN. Stainless steel fasteners being nonmagnetic is also one of the largest misconceptions amongst fastener users. This document will explain why most stainless steel fasteners are at least slightly magnetic and why many are so magnetic they are attracted to even weak household magnets. There are five classes of stainless steel (ferritic, austenitic, martensitic, duplex, and precipitate- hardened) and only one is nonmagnetic (austenitic). However, the austenitic class just happens to include the most widely and universally used types of stainless steels in the market. The first four classes are defined based on the microstructure of the metal with the last class, PH, based on its heat treatment. Microstructure is important because this is what gives the stainless steel its magnetic properties. The table below provides a brief overview of the classes of stainless steel as well as some properties of the materials. Details on the Five Classes of Stainless Steel Classes Non/Magnetic Crystal Structure Common Examples Ferritic Magnetic BCC 405, 430, 442 Austenitic Nonmagnetic FCC 201, 301, 302, 303, 304, 316 Martensitic Magnetic BCT 403, 410, 416 Duplex Magnetic Combination 2205, Alloy 255 Precipitate-Hardened Magnetic Combination 17-4PH, PH 17-7 How Does an Austenitic Stainless Steel Become Magnetic? As stated before, the microstructure of the metal is what gives the steel its magnetic properties. If the stainless steel chosen was austenitic, e.g. type 316, a