{"id":69592,"date":"2026-05-17T17:27:07","date_gmt":"2026-05-17T17:27:07","guid":{"rendered":"https:\/\/evgroupchina.com\/encyclopedia-of-metal\/jis-g3456\/"},"modified":"2026-05-19T15:29:48","modified_gmt":"2026-05-19T15:29:48","slug":"jis-g3456","status":"publish","type":"wiki","link":"https:\/\/evgroupchina.com\/en\/encyclopedia-of-metal\/jis-g3456\/","title":{"rendered":"JIS G3456"},"content":{"rendered":"<h2>Technical specifications and applications of JIS G3456 pipes<\/h2>\n<p>The JIS G3456 standard regulates requirements for carbon steel seamless pipes intended for service in high-temperature environments (exceeding 350\u00b0C). These products, supplied by EV Group China, are oriented towards critical pipeline systems where high stability of mechanical properties under heat is required.<\/p>\n<p>Upon customer request and subject to prior approval by the EV Group China production department, pipes can undergo additional testing and quality checks as specified in the standard&#8217;s annexes:<\/p>\n<ul>\n<li><strong>Annex Z2:<\/strong> Evaluation of yield strength or proof stress at elevated temperatures.<\/li>\n<li><strong>Annex Z3:<\/strong> Ultrasonic testing (UT) for metal continuity.<\/li>\n<li><strong>Annex Z4:<\/strong> Eddy current testing to detect surface defects.<\/li>\n<\/ul>\n<p>All technical parameters and units of measurement in the documentation comply with the International System of Units (SI), ensuring precision in design and engineering calculations.<\/p>\n<table class=\"table table-bordered table-hover\">\n<thead>\n<tr>\n<th rowspan=\"3\">Steel Grade<\/th>\n<th rowspan=\"3\">Tensile Strength, N\/mm<sup>2<\/sup><\/th>\n<th rowspan=\"3\">Yield Strength, N\/mm<sup>2<\/sup><\/th>\n<th colspan=\"4\">Elongation, %<\/th>\n<\/tr>\n<tr>\n<th colspan=\"2\">Specimens No. 11 or No. 12<\/th>\n<th colspan=\"2\">Specimens No. 4 and No. 5<\/th>\n<\/tr>\n<tr>\n<th>Longitudinal<\/th>\n<th>Transverse<\/th>\n<th>Longitudinal<\/th>\n<th>Transverse<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>STPT 370<\/td>\n<td>&gt;373<\/td>\n<td>&gt;216<\/td>\n<td>30<\/td>\n<td>25<\/td>\n<td>23<\/td>\n<td>28<\/td>\n<\/tr>\n<tr>\n<td>STPT 410<\/td>\n<td>&gt;412<\/td>\n<td>&gt;245<\/td>\n<td>25<\/td>\n<td>20<\/td>\n<td>19<\/td>\n<td>24<\/td>\n<\/tr>\n<tr>\n<td>STPT 480<\/td>\n<td>&gt;481<\/td>\n<td>&gt;275<\/td>\n<td>25<\/td>\n<td>20<\/td>\n<td>17<\/td>\n<td>22<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":0,"template":"","meta":[],"wiki_category":[118],"class_list":["post-69592","wiki","type-wiki","status-publish","hentry","wiki_category-jis"],"_links":{"self":[{"href":"https:\/\/evgroupchina.com\/en\/wp-json\/wp\/v2\/wiki\/69592","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/evgroupchina.com\/en\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/evgroupchina.com\/en\/wp-json\/wp\/v2\/types\/wiki"}],"version-history":[{"count":0,"href":"https:\/\/evgroupchina.com\/en\/wp-json\/wp\/v2\/wiki\/69592\/revisions"}],"wp:attachment":[{"href":"https:\/\/evgroupchina.com\/en\/wp-json\/wp\/v2\/media?parent=69592"}],"wp:term":[{"taxonomy":"wiki_category","embeddable":true,"href":"https:\/\/evgroupchina.com\/en\/wp-json\/wp\/v2\/wiki_category?post=69592"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}