{"id":223,"date":"2026-07-17T11:25:41","date_gmt":"2026-07-17T03:25:41","guid":{"rendered":"https:\/\/zhushanmetal.com\/?p=223"},"modified":"2026-07-17T21:26:03","modified_gmt":"2026-07-17T13:26:03","slug":"six-common-corrosion-issues-core-causes-of-electro-galvanized-strut-channels","status":"publish","type":"post","link":"https:\/\/zhushanmetal.com\/zh\/six-common-corrosion-issues-core-causes-of-electro-galvanized-strut-channels\/","title":{"rendered":"Six Common Corrosion Issues & Core Causes of Electro-Galvanized Strut Channels"},"content":{"rendered":"

1. Six Frequent Corrosion Problems Unique to Electro-Galvanized Steel<\/strong><\/strong><\/h3>\n\n\n\n

Electro-galvanized strut channels corrode much faster than hot-dip galvanized ones when used outdoors, in basements, humid workshops or closed damp warehouses. The six typical corrosion conditions are as follows:<\/p>\n\n\n\n

    \n
  1. Extensive white rust The ultra-thin zinc layer of electro-galvanized steel rapidly forms powdery white zinc oxide under high humidity. It will penetrate the coating and turn into spotted red rust within several months.<\/li>\n\n\n\n
  2. Large-area peeling & flaking zinc coating The electroplated zinc layer has weak adhesion. It peels off completely under minor collision, friction or rain wash, exposing bare steel substrate and triggering rapid rusting.<\/li>\n\n\n\n
  3. Severe corrosion at cut & drilled edges On-site cutting and drilling fully destroy the thin zinc coating. Without alloy layer protection, cut edges corrode the fastest, with rust spreading inward to the whole profile.<\/li>\n\n\n\n
  4. Rapid pitting corrosion under light salt fog & moisture In coastal areas, underground pipe galleries or mild acid-base chemical sites, electro-galvanized layers develop rust pits and perforations within one year, failing long-term load-bearing performance.<\/li>\n\n\n\n
  5. Aggravated galvanic corrosion stains Direct contact between electro-galvanized steel and stainless steel or aluminum alloy fittings triggers electrochemical reactions in damp environments, forming large dark rust spots.<\/li>\n\n\n\n
  6. Widespread rust from short-term aging Long-term exposure to moisture and UV rays wears down the thin zinc layer indoors. Expanding rust spots weaken bent sections and slotted holes, leading to deformation or fracture risks.<\/li>\n<\/ol>\n\n\n\n

    2. Four Root Causes of Electro-Galvanized Steel Corrosion<\/strong><\/strong><\/h3>\n\n\n\n
      \n
    1. Wrong environment matching Electro-galvanized steel is only designed for dry indoor use. Its thin zinc coating fails quickly if applied to damp basements, outdoor areas, coastal zones or chemical plants.<\/li>\n\n\n\n
    2. Non-standard construction work Random cutting and surface scratching damage the original protective layer, with no zinc-rich touch-up paint applied after installation, leaving bare steel exposed to moisture and corrosion.<\/li>\n\n\n\n
    3. Unregulated storage conditions Profiles without moisture-proof wrapping are stacked directly on wet ground in poorly ventilated warehouses, generating white rust even before delivery.<\/li>\n\n\n\n
    4. Lack of regular anti-rust maintenance No semi-annual inspection for damp indoor projects; minor white rust is left untreated and develops into severe corrosion.
      \"\"<\/li>\n<\/ol>","protected":false},"excerpt":{"rendered":"

      1. Six Frequent Corrosion Problems Unique to Electro-Galvanized Steel Electro-galvanized strut channels corrode much faster than hot-dip galvanized ones when used outdoors, in basements, humid workshops or closed damp warehouses. The six typical corrosion conditions are as follows: 2. Four Root Causes of Electro-Galvanized Steel Corrosion<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[41],"tags":[],"class_list":["post-223","post","type-post","status-publish","format-standard","hentry","category-electro-galvanized-strut-channel"],"_links":{"self":[{"href":"https:\/\/zhushanmetal.com\/zh\/wp-json\/wp\/v2\/posts\/223","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/zhushanmetal.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/zhushanmetal.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/zhushanmetal.com\/zh\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/zhushanmetal.com\/zh\/wp-json\/wp\/v2\/comments?post=223"}],"version-history":[{"count":1,"href":"https:\/\/zhushanmetal.com\/zh\/wp-json\/wp\/v2\/posts\/223\/revisions"}],"predecessor-version":[{"id":225,"href":"https:\/\/zhushanmetal.com\/zh\/wp-json\/wp\/v2\/posts\/223\/revisions\/225"}],"wp:attachment":[{"href":"https:\/\/zhushanmetal.com\/zh\/wp-json\/wp\/v2\/media?parent=223"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/zhushanmetal.com\/zh\/wp-json\/wp\/v2\/categories?post=223"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/zhushanmetal.com\/zh\/wp-json\/wp\/v2\/tags?post=223"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}