{"id":5974,"date":"2026-04-27T04:59:55","date_gmt":"2026-04-27T04:59:55","guid":{"rendered":"https:\/\/www.bomissteel.com\/?post_type=product&p=5974"},"modified":"2026-05-12T05:19:06","modified_gmt":"2026-05-12T05:19:06","slug":"galvanized-steel-coils-for-hvac","status":"publish","type":"product","link":"https:\/\/www.bomissteel.com\/ha\/product\/galvanized-steel-coils-for-hvac\/","title":{"rendered":"Zoben bakin \u0199arfe na galvanized don HVAC"},"content":{"rendered":"

Overview:<\/h2>\n
Engineered for the rigorous demands of the HVAC<\/a> industry, our galvanized steel products provide superior rust protection and forming capabilities. Backed by over a decade of manufacturing and export expertise, we deliver materials that meet strict international standards, ensuring your ventilation systems are built to last.<\/div>\n
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Takardun bayani<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Takardun bayani<\/strong><\/td>\nDetails for HVAC Galvanized Steel<\/a><\/strong><\/td>\n<\/tr>\n<\/thead>\n
Material Grades<\/b><\/span><\/td>\nDX51D+Z, SGCC+Z, S220GD+Z to S280GD+Z (Commercial & Structural)<\/span><\/td>\n<\/tr>\n
Kauri<\/b><\/span><\/td>\n0.4mm \u2013 2.0mm<\/span><\/td>\n<\/tr>\n
Standard Width<\/b><\/span><\/td>\n1000mm, 1219mm (4ft), 1250mm (Custom slitting services available)<\/i><\/span><\/td>\n<\/tr>\n
Zinc Coating<\/b><\/span><\/td>\nZ60 \u2013 Z275 g\/m\u00b2 (ASTM G20 \u2013 G90 equivalents available)<\/i><\/span><\/td>\n<\/tr>\n
Kammalawar saman<\/b><\/span><\/td>\nZero Spangle (F), Minimized Spangle (M), Regular Spangle (N)<\/span><\/td>\n<\/tr>\n
Coil ID<\/b><\/span><\/td>\n508mm (20″) \/ 610mm (24″)<\/span><\/td>\n<\/tr>\n
Nauyin zobe<\/b><\/span><\/td>\n3 MT \u2013 8 MT (Customizable based on container loading limits)<\/i><\/span><\/td>\n<\/tr>\n
Adadin mafi \u0199an\u0199anci na oda<\/b><\/span><\/td>\nTani mitir 18<\/span><\/td>\n<\/tr>\n
Marufin fitarwa<\/b><\/span><\/td>\nPremium seaworthy packing: plastic film, waterproof paper, galvanized steel envelope, metal banding, and edge protection.<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Neman<\/h2>\n

With its superior processing and forming properties and durable corrosion resistance, our galvanized steel coils play a crucial role in the HVAC and equipment manufacturing industry, fully meeting a wide range of stringent engineering standards:<\/p>\n

HVAC and Ventilation Duct Systems<\/strong>: As the industry’s preferred material for manufacturing ventilation duct networks, galvanized steel coils offer excellent bending and interlocking properties. Whether it’s supply air ducts, return air ducts, smoke exhaust systems, or complex fittings such as elbows, tees, and reducers, they ensure the airtightness and long-term efficient operation of duct systems.<\/p>\n

High-Strength Structural Support Components<\/strong>: For support structures requiring high rigidity and corrosion resistance (such as duct hangers, mounting brackets, fixing clamps, and heavy-duty air conditioning unit bases), the galvanized coating provides a robust physical barrier, offering a safe and high-load-bearing structural foundation in humid or challenging working environments.<\/p>\n

Unit Housings and Equipment Protection<\/strong>: Perfectly balancing structural strength and corrosion resistance, it is the ideal choice for manufacturing housings for combined air conditioning units, fresh air handling units, fan boxes, and fan coil units. It not only effectively protects the internal core components, but also significantly extends the overall commercial lifespan of the equipment.<\/p>\n

\"Galvanized
Galvanized ventilation ducts<\/figcaption><\/figure>\n
\"Galvanized
Galvanized duct system<\/figcaption><\/figure>\n<\/div>\n

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Recommended Galvanized Steel Coil Materials and Zinc Coating<\/h3>\n\n\n\n\n\n\n\n\n\n
Application Area<\/strong><\/td>\nTypical Components<\/strong><\/td>\nRecommended Steel Grade<\/strong><\/td>\nSuggested Zinc Coating Weight (Double-sided)<\/strong><\/td>\n<\/tr>\n<\/thead>\n
HVAC Ducts & Fittings<\/b><\/span><\/td>\nRectangular\/spiral ducts, elbows, tees, reducers<\/span><\/td>\nDX51D+Z \/ SGCC<\/span><\/td>\n\n

Indoor (Dry):<\/b> \u2265 Z80<\/p>\n

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Indoor (Humid):<\/b> \u2265 Z120<\/p>\n

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Outdoor (Mild):<\/b> \u2265 Z180<\/p>\n

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High Humidity\/Coastal:<\/b> Z275 or Aluzinc (GL)<\/p>\n<\/td>\n<\/tr>\n

Structural Supports & Hangers<\/b><\/span><\/td>\nDuct hangers, fixing brackets, equipment bases<\/span><\/td>\nS220GD+Z \/ S250GD+Z<\/span><\/td>\n\n

Indoor:<\/b> \u2265 Z80<\/p>\n

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Outdoor\/Damp:<\/b> \u2265 Z120<\/p>\n<\/td>\n<\/tr>\n

AC Unit & Equipment Housings<\/b><\/span><\/td>\nFan coil units, air handling unit (AHU) covers<\/span><\/td>\nDX51D+Z \/ SGCC<\/span><\/td>\n\n

Indoor (Dry):<\/b> \u2265 Z80<\/p>\n

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Indoor (Humid):<\/b> \u2265 Z120<\/p>\n

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Outdoor:<\/b> \u2265 Z180<\/p>\n<\/td>\n<\/tr>\n

Condensate Drainage Systems<\/b><\/span><\/td>\nDrain pans, condensate collection troughs<\/span><\/td>\nDX51D+Z \/ SGCC<\/span><\/td>\n\n

Indoor (Humid):<\/b> \u2265 Z120<\/p>\n

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Outdoor\/High Moisture:<\/b> \u2265 Z180<\/p>\n<\/td>\n<\/tr>\n

Fire & Smoke Exhaust Systems<\/b><\/span><\/td>\nFire dampers, smoke exhaust duct housings<\/span><\/td>\nDX51D+Z \/ SGCC<\/span><\/td>\n\n

Standard Indoor:<\/b> \u2265 Z80<\/p>\n

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Outdoor\/Damp:<\/b> \u2265 Z120<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Me ya sa za\u0253i mu?<\/h2>\n

“When it comes to HVAC installations, material reliability is non-negotiable. As a dedicated manufacturer with a proven track record of supplying global markets, Bomis Steel specializes in premium galvanized steel coils engineered specifically for ductwork and climate control systems.<\/p>\n

Manufactured to rigorous international standards (including ASTM A653 and EN 10346), our coils deliver the exact formability and zinc coating precision your projects demand. Partner with us to secure top-tier materials that keep your HVAC projects on schedule and built to last. Contact our team today to discuss your exact specifications.”<\/p>\n

Tambayoyi da ake yawan yi<\/h2>\n

Q1: What zinc coating weight is recommended for HVAC ductwork?<\/strong>
\nA: The ideal zinc coating depends entirely on your project’s environment. For standard indoor ventilation systems, a coating of Z80 to Z120 (80g-120g\/m\u00b2) is typically sufficient. However, for outdoor ducts, high-humidity environments, or coastal areas, we strongly recommend G90 (Z275) or higher to ensure ultimate corrosion resistance. We can customize the coating weight to meet your exact engineering specifications.<\/p>\n

Q2: What steel grades do you supply for HVAC applications?<\/strong>
\nA: To meet the diverse manufacturing needs of ductwork and equipment, we primarily supply commercial-quality grades with excellent cold-forming properties, such as DX51D+Z, SGCC, and CS Type B. For structural supports and heavy-duty equipment bases, we also offer high-strength structural grades like S220GD+Z to S350GD+Z, ensuring maximum physical stability for your HVAC systems.<\/p>\n

Q3: Will the zinc coating flake off during lock-forming or spiral duct manufacturing?<\/strong>
\nA: Absolutely not. We strictly control the annealing and galvanizing processes to ensure superior coating adhesion. Our galvanized steel coils feature “lock-forming quality” (LFQ), meaning they are specifically engineered for deep processing like bending, stamping, and lock-seaming. The zinc layer will not peel or flake, even when manufacturing complex spiral ducts, elbows, or tees.<\/p>\n

Q4: Regular Spangle vs. Zero Spangle: Which is better for air ducts?<\/strong>
\nA: In terms of anti-corrosion performance, there is no fundamental difference between the two; it is primarily an aesthetic and surface finish choice. Regular spangle has the traditional crystallized texture and is widely used for concealed ductwork. Zero (or minimized) spangle offers a smoother, more uniform surface. We recommend zero spangle for exposed ductwork (like in commercial gyms or malls) or if the equipment housing requires post-painting.<\/p>\n

Takardun Shaidarmu<\/h2>\n
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HVAC systems demand materials that deliver exceptional corrosion resistance, precise formability, and long-lasting structural integrity. We manufacture and supply premium galvanized steel coils and sheets engineered specifically for ductwork and climate control infrastructure.<\/p>\n

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Bayanan Fasaha:<\/strong><\/p>\n

Thickness Range:<\/strong> 0.4mm \u2013 2.0mm<\/p>\n

Standard Width:<\/strong> 600mm \u2013 1250mm (Custom slitting and cut-to-length services available)<\/p>\n

Forming Grades:<\/strong> DX51D+Z \/ SGCC+Z (Ideal for standard ductwork and lock-forming)<\/p>\n

Structural Grades:<\/strong> S220GD+Z, S250GD+Z, S280GD+Z (Engineered for high-strength requirements)<\/p>","protected":false},"featured_media":5982,"template":"","meta":{"rank_math_title":"Galvanized steel coils for HVAC - Bomis Steel","rank_math_description":"\"Looking for reliable galvanized steel coils for your next HVAC project? At Bomis Steel, we manufacture and export high-performance steel solutions tailored for commercial and industrial ventilation systems. ","rank_math_canonical_url":"","rank_math_focus_keyword":""},"product_brand":[],"product_cat":[33],"product_tag":[],"class_list":["post-5974","product","type-product","status-publish","has-post-thumbnail","product_cat-galvanized-steel-coil","first","instock","shipping-taxable","purchasable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/www.bomissteel.com\/ha\/wp-json\/wp\/v2\/product\/5974","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bomissteel.com\/ha\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.bomissteel.com\/ha\/wp-json\/wp\/v2\/types\/product"}],"version-history":[{"count":10,"href":"https:\/\/www.bomissteel.com\/ha\/wp-json\/wp\/v2\/product\/5974\/revisions"}],"predecessor-version":[{"id":6586,"href":"https:\/\/www.bomissteel.com\/ha\/wp-json\/wp\/v2\/product\/5974\/revisions\/6586"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bomissteel.com\/ha\/wp-json\/wp\/v2\/media\/5982"}],"wp:attachment":[{"href":"https:\/\/www.bomissteel.com\/ha\/wp-json\/wp\/v2\/media?parent=5974"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.bomissteel.com\/ha\/wp-json\/wp\/v2\/product_brand?post=5974"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.bomissteel.com\/ha\/wp-json\/wp\/v2\/product_cat?post=5974"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.bomissteel.com\/ha\/wp-json\/wp\/v2\/product_tag?post=5974"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}