{"id":258,"date":"2025-08-19T15:40:50","date_gmt":"2025-08-19T15:40:50","guid":{"rendered":"https:\/\/pwhtsolutions.net\/?p=258"},"modified":"2025-08-19T15:40:51","modified_gmt":"2025-08-19T15:40:51","slug":"b31-3-pwht-table-2","status":"publish","type":"post","link":"http:\/\/pwhtsolutions.net\/ja\/b31-3-pwht-table-2\/","title":{"rendered":"B31 3 PWHT \u30c6\u30fc\u30d6\u30eb"},"content":{"rendered":"<p>PWHT requirements in different sections of the Code vary significantly, increasing the risk of costly outages due to weld failures and raising potential outage expenses.<\/p>\n<p>EPRI (Ref 1) and Lundin-Khan (Ref 5) reports have recommended that B31.1 and B31.3 lower their PWHT temperature range for P No 4 materials to increase margin against reheat cracking.<\/p>","protected":false},"excerpt":{"rendered":"<p>\u898f\u683c\u306e\u7570\u306a\u308b\u30bb\u30af\u30b7\u30e7\u30f3\u306ePWHT\u8981\u4ef6\u306f\u5927\u304d\u304f \u7570\u306a\u3063\u3066\u304a\u308a\u3001\u6eb6\u63a5\u6b20\u9665\u306b\u3088\u308b\u30b3\u30b9\u30c8\u9ad8\u505c\u6b62\u306e\u30ea \u30b9\u30af\u3092\u9ad8\u3081\u3001\u6f5c\u5728\u7684\u306a\u505c\u6b62\u8cbb\u7528\u3092\u5897\u52a0\u3055\u305b\u308b\u3002EPRI(\u53c2\u8003\u6587\u732e1)\u3068Lundin-Khan(\u53c2\u8003\u6587\u732e5) \u306e\u5831\u544a\u66f8\u306f\u3001B31.1\u3068B31.3\u306b\u5bfe\u3057\u3001P No 4\u6750\u306ePWHT\u6e29\u5ea6\u7bc4\u56f2\u3092\u4e0b\u3052\u3001\u518d\u52a0\u71b1\u5272\u308c\u306b\u5bfe\u3059\u308b\u30de\u30fc\u30b8\u30f3 \u3092\u5897\u3084\u3059\u3088\u3046\u52e7\u544a\u3057\u3066\u3044\u308b\u3002<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-258","post","type-post","status-publish","format-standard","hentry","category-pwht-knowledge"],"aioseo_notices":[],"_links":{"self":[{"href":"http:\/\/pwhtsolutions.net\/ja\/wp-json\/wp\/v2\/posts\/258","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/pwhtsolutions.net\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/pwhtsolutions.net\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/pwhtsolutions.net\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/pwhtsolutions.net\/ja\/wp-json\/wp\/v2\/comments?post=258"}],"version-history":[{"count":1,"href":"http:\/\/pwhtsolutions.net\/ja\/wp-json\/wp\/v2\/posts\/258\/revisions"}],"predecessor-version":[{"id":259,"href":"http:\/\/pwhtsolutions.net\/ja\/wp-json\/wp\/v2\/posts\/258\/revisions\/259"}],"wp:attachment":[{"href":"http:\/\/pwhtsolutions.net\/ja\/wp-json\/wp\/v2\/media?parent=258"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/pwhtsolutions.net\/ja\/wp-json\/wp\/v2\/categories?post=258"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/pwhtsolutions.net\/ja\/wp-json\/wp\/v2\/tags?post=258"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}