{"id":69883,"date":"2026-05-17T17:28:40","date_gmt":"2026-05-17T17:28:40","guid":{"rendered":"https:\/\/evgroupchina.com\/encyclopedia-of-metal\/astm-b372\/"},"modified":"2026-05-19T15:31:56","modified_gmt":"2026-05-19T15:31:56","slug":"astm-b372","status":"publish","type":"wiki","link":"https:\/\/evgroupchina.com\/en\/encyclopedia-of-metal\/astm-b372\/","title":{"rendered":"ASTM B372"},"content":{"rendered":"<h2>Technical purpose and operational characteristics<\/h2>\n<p>The ASTM B372 standard regulates the production and supply of high-precision seamless rectangular waveguide tubes made of copper alloys grades UNS C10200, C10300, C12000, and C22000. Products supplied by EV Group China are optimized for integration into modern high-frequency data transmission systems and specialized electrical equipment, where the stability of geometric parameters and material conductivity are critical.<\/p>\n<h2>Requirements for composition and physical-mechanical properties<\/h2>\n<p>To ensure signal transmission reliability in waveguide paths, grades C10200, C10300, and C12000 undergo strict control for the absence of copper oxide. Quality control includes mandatory tests for embrittlement in a reducing atmosphere, as well as measurements of electrical resistivity, the parameters of which must strictly correspond to ASTM engineering tolerances. EV Group China&#8217;s technological control guarantees that the material meets the stated physical characteristics for operation in complex electromagnetic environments.<\/p>\n","protected":false},"featured_media":0,"template":"","meta":[],"wiki_category":[112],"class_list":["post-69883","wiki","type-wiki","status-publish","hentry","wiki_category-astm"],"_links":{"self":[{"href":"https:\/\/evgroupchina.com\/en\/wp-json\/wp\/v2\/wiki\/69883","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\/69883\/revisions"}],"wp:attachment":[{"href":"https:\/\/evgroupchina.com\/en\/wp-json\/wp\/v2\/media?parent=69883"}],"wp:term":[{"taxonomy":"wiki_category","embeddable":true,"href":"https:\/\/evgroupchina.com\/en\/wp-json\/wp\/v2\/wiki_category?post=69883"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}