{"id":5893,"date":"2026-05-16T15:00:00","date_gmt":"2026-05-16T08:00:00","guid":{"rendered":"https:\/\/onggiosaoviet.vn\/?p=5893"},"modified":"2026-05-15T19:33:57","modified_gmt":"2026-05-15T12:33:57","slug":"tai-sao-nen-chon-ton-ma-kem-inox-cho-cut-goc-vuong-90-ngoai-troi","status":"publish","type":"post","link":"https:\/\/onggiosaoviet.vn\/en\/tai-sao-nen-chon-ton-ma-kem-inox-cho-cut-goc-vuong-90-ngoai-troi\/","title":{"rendered":"Why Choose Galvanized Steel\/Stainless Steel for Outdoor 90\u00b0 Right-Angle Elbows?"},"content":{"rendered":"<p class=\"wp-block-paragraph\">In HVAC system architecture,&nbsp;<strong>90\u00b0 right-angle elbow<\/strong>&nbsp;(Also known as duct elbows) play a role in directing airflow at bends. Especially when installed in outdoor areas \u2013 where they are directly exposed to sun, rain, and humidity \u2013 the choice of material is a crucial factor determining the lifespan of the structure.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Together&nbsp;<strong>Vietnamese Stars<\/strong>&nbsp;Analyze the reasons why&nbsp;<strong>galvanized steel<\/strong>&nbsp;and&nbsp;<strong>stainless steel<\/strong>&nbsp;They have once again become the &quot;golden duo&quot; for outdoor corner fitting applications today.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">1. Galvanized steel sheets: An economical and durable solution.<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Galvanized steel is a popular material in the ductwork industry thanks to its perfect balance between cost and functionality.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Active protection layer:<\/strong>\u00a0The outer zinc coating acts as a &quot;scapegoat.&quot; When exposed to the outdoor environment, the zinc oxidizes first, forming a protective layer that shields the steel underneath from rust.<\/li>\n\n\n\n<li><strong>Good mechanical strength:<\/strong>\u00a0Due to the properties of steel, galvanized sheet metal elbows can withstand strong impacts and vibrations during the operation of exhaust fans.<\/li>\n\n\n\n<li><strong>Budget optimization:<\/strong>\u00a0Compared to stainless steel, galvanized steel sheets help investors save significantly on material costs while still ensuring technical standards for factory and warehouse projects.<\/li>\n\n\n\n<li><strong>Easy to install:<\/strong>\u00a0Its moderate weight and flexibility allow for quick and precise manufacturing and installation of right-angle elbows.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">2. Stainless steel: The pinnacle of industrial durability and aesthetics.<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">If galvanized steel is an effective solution, then...&nbsp;<strong>Stainless steel<\/strong>&nbsp;It is the &quot;timeless&quot; choice for projects with demanding requirements.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Absolute corrosion resistance:<\/strong>\u00a0Stainless steel is resistant to the penetration of sea salt, acids, and alkalis. It is a mandatory material for air duct elbows in chemical industrial zones or coastal projects (such as in Hai Phong and Quang Ninh provinces).<\/li>\n\n\n\n<li><strong>Elegant appearance:<\/strong>\u00a0The polished stainless steel surface not only enhances aesthetics but is also extremely easy to clean, preventing bacteria and mold from accumulating.<\/li>\n\n\n\n<li><strong>Withstands extreme temperatures:<\/strong>\u00a0Stainless steel maintains its structural integrity even under the intense summer sun of Northern Vietnam or the high temperatures of industrial kitchens.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"736\" height=\"552\" src=\"https:\/\/onggiosaoviet.vn\/wp-content\/uploads\/2026\/03\/Anh-1-Bai-3-thang-3.jpg\" alt=\"\" class=\"wp-image-5471\" srcset=\"https:\/\/onggiosaoviet.vn\/wp-content\/uploads\/2026\/03\/Anh-1-Bai-3-thang-3.jpg 736w, https:\/\/onggiosaoviet.vn\/wp-content\/uploads\/2026\/03\/Anh-1-Bai-3-thang-3-300x225.jpg 300w, https:\/\/onggiosaoviet.vn\/wp-content\/uploads\/2026\/03\/Anh-1-Bai-3-thang-3-16x12.jpg 16w, https:\/\/onggiosaoviet.vn\/wp-content\/uploads\/2026\/03\/Anh-1-Bai-3-thang-3-600x450.jpg 600w\" sizes=\"(max-width: 736px) 100vw, 736px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">3. Comparison table of 90\u00b0 right-angle elbows: Galvanized steel vs. Stainless steel<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Below is a review table to give you the most visual overview to help you make investment decisions:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><td><strong>Typical characteristics<\/strong><\/td><td><strong>Galvanized steel corner elbow<\/strong><\/td><td><strong>Stainless steel elbow (304\/201)<\/strong><\/td><\/tr><\/thead><tbody><tr><td><strong>Weather resistant<\/strong><\/td><td>Good (suitable for normal environments)<\/td><td>Excellent (salt resistance, chemical resistance)<\/td><\/tr><tr><td><strong>Structural durability<\/strong><\/td><td>High<\/td><td>Very high<\/td><\/tr><tr><td><strong>Investment costs<\/strong><\/td><td>Low - Medium<\/td><td>High<\/td><\/tr><tr><td><strong>Aesthetics<\/strong><\/td><td>Medium (matte silver-gray)<\/td><td>High (glossy\/matte finish)<\/td><\/tr><tr><td><strong>Priority usage<\/strong><\/td><td>Factories, warehouses, shopping malls<\/td><td>Hospitals, food, coastal construction<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">4. Expert advice on product selection from Sao Viet technical specialists.<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The choice of material for outdoor 90\u00b0 right-angle elbows should be based on three key criteria:<\/p>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li><strong>Geographical location:<\/strong>\u00a0If the project is near the sea or an area with chemical pollution, choose\u00a0<strong>304 stainless steel<\/strong>. If it&#039;s in a dry urban area,\u00a0<strong>galvanized steel<\/strong>\u00a0That&#039;s enough for my needs.<\/li>\n\n\n\n<li><strong>Depreciation period:<\/strong>\u00a0For short-term projects or factory rentals, galvanized steel sheets are recommended. For major constructions and hospitals, stainless steel should be invested in to avoid maintenance and replacement after a few years.<\/li>\n\n\n\n<li><strong>Load capacity:<\/strong>\u00a0The 90\u00b0 right-angle elbow is the point that experiences the greatest wind pressure, therefore the material must have a standard thickness (0.58mm \u2013 1.15mm depending on size).<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">Sao Viet \u2013 A reputable ductwork accessories manufacturer in Northern Vietnam.<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">With our modern CNC bending and cutting machines,&nbsp;<strong>Vietnamese Stars<\/strong>&nbsp;We are committed to providing 90\u00b0 right-angle elbows with absolute precision down to the millimeter.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Material type 1:<\/strong>\u00a0Only use genuine galvanized steel and stainless steel products with factory certification.<\/li>\n\n\n\n<li><strong>Exquisite craftsmanship:<\/strong>\u00a0Tight welds and strong joints help minimize wind pressure loss.<\/li>\n\n\n\n<li><strong>Competitive pricing:<\/strong>\u00a0Manufactured directly in our factory, without intermediaries.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/onggiosaoviet.vn\/wp-content\/uploads\/2026\/03\/Anh-1-Bai-8-1024x768.png\" alt=\"\" class=\"wp-image-5502\" srcset=\"https:\/\/onggiosaoviet.vn\/wp-content\/uploads\/2026\/03\/Anh-1-Bai-8-1024x768.png 1024w, https:\/\/onggiosaoviet.vn\/wp-content\/uploads\/2026\/03\/Anh-1-Bai-8-300x225.png 300w, https:\/\/onggiosaoviet.vn\/wp-content\/uploads\/2026\/03\/Anh-1-Bai-8-768x576.png 768w, https:\/\/onggiosaoviet.vn\/wp-content\/uploads\/2026\/03\/Anh-1-Bai-8-1536x1152.png 1536w, https:\/\/onggiosaoviet.vn\/wp-content\/uploads\/2026\/03\/Anh-1-Bai-8-2048x1536.png 2048w, https:\/\/onggiosaoviet.vn\/wp-content\/uploads\/2026\/03\/Anh-1-Bai-8-16x12.png 16w, https:\/\/onggiosaoviet.vn\/wp-content\/uploads\/2026\/03\/Anh-1-Bai-8-600x450.png 600w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Are you looking for an accurate quote for a 90\u00b0 right-angle elbow system?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>&gt;&gt;&gt; See more:\u00a0<a href=\"https:\/\/onggiosaoviet.vn\/en\/cua-hang\/\">Discover the Sao Viet duct accessories catalog now!<\/a><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>&gt;&gt;&gt; See more:\u00a0<a href=\"https:\/\/onggiosaoviet.vn\/en\/bao-gia-ong-gio-hai-phong-moi-nhat-2026-cap-nhat-chi-tiet-tu-sao-viet\/\">Get free technical advice and a quote!<\/a><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Address: 267 Le Thanh Tong, May Chai, Hai Phong<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mrs. Hang: 0815.999.826<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mrs Giang: 0934.559.168<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">CRM \u2013 Mrs. Linh: 0949.852.886<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Email: vietonggio@gmail.com<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>","protected":false},"excerpt":{"rendered":"<p>In HVAC system architecture, 90\u00b0 right-angle elbows (also known as duct elbows) play a role in directing airflow at bends. Especially when installed in outdoor areas \u2013 where they are directly exposed to sun, rain, and humidity \u2013 the choice of [\u2026]<\/p>","protected":false},"author":4,"featured_media":5471,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[296,295,297,298],"class_list":["post-5893","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc","tag-co-ong-gio-vuong","tag-cut-goc-vuong-90-do","tag-phu-kien-ong-gio-ngoai-troi","tag-san-xuat-phu-kien-ong-gio-hai-phong"],"_links":{"self":[{"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/posts\/5893","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/comments?post=5893"}],"version-history":[{"count":1,"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/posts\/5893\/revisions"}],"predecessor-version":[{"id":5894,"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/posts\/5893\/revisions\/5894"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/media\/5471"}],"wp:attachment":[{"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/media?parent=5893"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/categories?post=5893"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/tags?post=5893"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}