{"id":5608,"date":"2026-04-22T10:19:51","date_gmt":"2026-04-22T02:19:51","guid":{"rendered":"https:\/\/www.bomissteel.com\/?post_type=product&p=5608"},"modified":"2026-09-22T15:34:09","modified_gmt":"2026-09-22T07:34:09","slug":"s550gd-galvanized-steel","status":"publish","type":"product","link":"https:\/\/www.bomissteel.com\/bn\/product\/s550gd-galvanized-steel\/","title":{"rendered":"S550GD \u0997\u09cd\u09af\u09be\u09b2\u09ad\u09be\u09a8\u09be\u0987\u099c\u09a1 \u09b8\u09cd\u099f\u09bf\u09b2"},"content":{"rendered":"

\u09ac\u09b0\u09cd\u09a3\u09a8\u09be<\/strong><\/h2>\n
S550GD is a high-strength hot-dip galvanized S350GD+Z<\/a> structural steel (material number 1.0531) as defined in EU standard EN 10346.<\/div>\n
<\/div>\n
Description of each digit in the designation:<\/div>\n
S: Structural steel, used for load-bearing components.<\/div>\n
550: Minimum yield strength 550 MPa (Rp0.2\u2265550).<\/div>\n
G: Hot-dip galvanized.<\/div>\n
D: Dual-phase \/ Hot-dip galvanizing code<\/a>, indicating the hot-dip galvanizing process.<\/div>\n
<\/div>\n
Complete designation (common):<\/div>\n
S550GD+Z: Hot-dip galvanized (pure zinc coating).<\/div>\n
S550GD+AZ: Aluminized zinc<\/a> (55% Al + 43.4% Zn + 1.6% Si).<\/div>\n
S550GD+ZM: Zinc-aluminum-magnesium galvanized, with enhanced corrosion resistance.<\/div>\n

\u09b8\u09cd\u09aa\u09c7\u09b8\u09bf\u09ab\u09bf\u0995\u09c7\u09b6\u09a8<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u09ac\u09bf\u09ad\u09be\u0997\u00a0<\/strong><\/td>\n\u09aa\u09cd\u09af\u09be\u09b0\u09be\u09ae\u09bf\u099f\u09be\u09b0\u00a0<\/strong><\/td>\n\u09ac\u09cb\u043c\u0438\u0441 \u09b8\u09cd\u09aa\u09c7\u09b8\u09bf\u09ab\u09bf\u0995\u09c7\u09b6\u09a8\u00a0<\/strong><\/td>\n<\/tr>\n<\/thead>\n
\n

\u09ae\u09be\u09a4\u09cd\u09b0\u09be\u0997\u09a4 \u09b8\u09cd\u09aa\u09c7\u09b8\u09bf\u09ab\u09bf\u0995\u09c7\u09b6\u09a8<\/b> \u09e7 \u09ae\u09bf\u09ae\u09bf \u0985\u09cd\u09af\u09be\u09b2\u09c1\u09ae\u09bf\u09a8\u09bf\u09af\u09bc\u09be\u09ae \u09b6\u09c0\u099f<\/p>\n

 <\/p>\n

\n<\/td>\n

\u09aa\u09c1\u09b0\u09c1\u09a4\u09cd\u09ac<\/b><\/span><\/td>\n0.13 mm \u2013 6.0 mm (Precision tolerance controlled)<\/span><\/td>\n<\/tr>\n
<\/td>\n\u09aa\u09cd\u09b0\u09b8\u09cd\u09a5<\/b><\/span><\/td>\nUp to 1500 mm<\/span><\/td>\n<\/tr>\n
<\/td>\n\u09a6\u09c8\u09b0\u09cd\u0998\u09cd\u09af<\/b><\/span><\/td>\nCoil, or custom cut-to-length<\/span><\/td>\n<\/tr>\n
<\/td>\n\u0989\u09aa\u09b2\u09ac\u09cd\u09a7 \u09ab\u09b0\u09cd\u09ae<\/b><\/span><\/td>\nSteel Coil, Flat Sheet, Corrugated Roofing Sheet, Slit Strip<\/span><\/td>\n<\/tr>\n
\n

\u0986\u09ac\u09b0\u09a3 \u098f\u09ac\u0982 \u09aa\u09c3\u09b7\u09cd\u09a0\u09a4\u09b2<\/b><\/p>\n

 <\/p>\n

\n<\/td>\n

\u0989\u09ce\u09aa\u09be\u09a6\u09a8 \u09ae\u09be\u09a8<\/b><\/span><\/td>\nEN 10346<\/span><\/td>\n<\/tr>\n
<\/td>\n\u099c\u09bf\u0999\u09cd\u0995 \u0986\u09ac\u09b0\u09a3 \u09ad\u09b0<\/b><\/span><\/td>\nZ30 \u2013 Z275 (30 g\/m\u00b2 to 275 g\/m\u00b2)<\/span><\/td>\n<\/tr>\n
<\/td>\n\u09aa\u09c3\u09b7\u09cd\u09a0 \u099d\u09b2\u09ae\u09b2<\/b><\/span><\/td>\nLarge Spangle, Regular Spangle, Small Spangle, Zero Spangle<\/span><\/td>\n<\/tr>\n
<\/td>\n\u09aa\u09c3\u09b7\u09cd\u09a0\u09a4\u09b2 \u099a\u09bf\u0995\u09bf\u09ce\u09b8\u09be<\/b><\/span><\/td>\nChromated \/ Passivation, Anti-Fingerprint (AFP), Oiled, Dry<\/span><\/td>\n<\/tr>\n
\n

\u09af\u09be\u09a8\u09cd\u09a4\u09cd\u09b0\u09bf\u0995 \u09ac\u09c8\u09b6\u09bf\u09b7\u09cd\u099f\u09cd\u09af<\/b><\/p>\n

 <\/p>\n

\n<\/td>\n

\u09ab\u09b2\u09a8 \u09b6\u0995\u09cd\u09a4\u09bf<\/b><\/span><\/td>\n\u2265 \u09eb\u09eb\u09e6 \u09ae\u09c7\u0997\u09be\u09aa\u09cd\u09af\u09be\u09b8\u0995\u09c7\u09b2<\/span><\/td>\n<\/tr>\n
<\/td>\n\u09aa\u09cd\u09b0\u09b8\u09be\u09b0\u09cd\u09af \u09b6\u0995\u09cd\u09a4\u09bf<\/b><\/span><\/td>\n560 \u2013 750 MPa<\/span><\/td>\n<\/tr>\n
\n

Mill & Logistics Capabilities<\/b><\/p>\n

 <\/p>\n

\n<\/td>\n

Coil ID (Inner Diameter)<\/b><\/span><\/td>\n\u09eb\u09e6\u09ee \u09ae\u09bf\u09ae\u09bf \/ \u09ec\u09e7\u09e6 \u09ae\u09bf\u09ae\u09bf<\/span><\/td>\n<\/tr>\n
<\/td>\n\u0995\u09af\u09bc\u09c7\u09b2\u09c7\u09b0 \u0993\u099c\u09a8<\/b><\/span><\/td>\n2 \u2013 5 MT (Metric Tons)<\/span><\/td>\n<\/tr>\n
<\/td>\n\u09ae\u09c2\u09b2\u09cd\u09af \u09b8\u0982\u09af\u09cb\u099c\u09a8 \u09aa\u09cd\u09b0\u0995\u09cd\u09b0\u09bf\u09af\u09bc\u09be\u0995\u09b0\u09a3<\/b><\/span><\/td>\nSlitting, Shearing, Punching, Profiling, Embossing<\/span><\/td>\n<\/tr>\n
<\/td>\n\u09a8\u09cd\u09af\u09c2\u09a8\u09a4\u09ae \u0985\u09b0\u09cd\u09a1\u09be\u09b0 \u09aa\u09b0\u09bf\u09ae\u09be\u09a3<\/b><\/span><\/td>\n18 MT (One 20ft Container)<\/span><\/td>\n<\/tr>\n
<\/td>\n\u09b2\u09bf\u09a1 \u099f\u09be\u0987\u09ae<\/b><\/span><\/td>\n7 \u2013 35 Days (Subject to mill production schedule)<\/span><\/td>\n<\/tr>\n
<\/td>\n\u09b8\u09ae\u09c1\u09a6\u09cd\u09b0\u09af\u09be\u09a4\u09cd\u09b0\u09be\u09b0 \u0989\u09aa\u09af\u09cb\u0997\u09c0 \u09aa\u09cd\u09af\u09be\u0995\u09c7\u099c\u09bf\u0982<\/b><\/span><\/td>\nMill standard export packing (Waterproof kraft paper, plastic film, galvanized steel envelope, securely strapped)<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Benefits of Using S550GD Galvanized Steel<\/h2>\n

Maximizing Structural Performance and Longevity<\/strong><\/p>\n

When engineering demanding structural projects, utilizing BOMIS S550GD high-strength steel offers an immediate competitive advantage. The superior yield strength allows for significant material down-gauging\u2014reducing overall structural weight and optimizing your freight costs without compromising stress resistance.<\/p>\n

To ensure your projects endure the test of time, we manufacture this high-strength substrate with highly customizable coating options. Beyond traditional zinc, BOMIS supplies premium Aluminum-Zinc (AZ) and advanced Zinc-Aluminum-Magnesium (ZAM) finishes, specifically formulated to resist corrosion in severe exposure environments.
\nWhile engineering-grade steel represents a premium upfront investment, its proven ability to last 3 to 5 times longer than conventional mild steel drastically minimizes future maintenance, delivering an unmatched Total Cost of Ownership (TCO) for your clients.<\/p>\n

\"S550GD
The S550GD Galvanized Steel is currently in production.<\/figcaption><\/figure>\n
\"
S550GD \u0997\u09cd\u09af\u09be\u09b2\u09ad\u09be\u09a8\u09be\u0987\u099c\u09a1 \u09b8\u09cd\u099f\u09bf\u09b2<\/figcaption><\/figure>\n
<\/div>\n

Applications of S550GD Galvanized Steel<\/h2>\n

Renewable Energy & Critical Infrastructure<\/strong>
\nEngineered to withstand severe wind and snow loads, our S550GD steel is the preferred substrate for utility-scale solar photovoltaic (PV) mounting systems (including high-stress purlins and main beams). Its superior rigidity also makes it ideal for 5G telecommunication towers and high-voltage transmission structures, ensuring decades of stability in outdoor environments.<\/p>\n

Automotive & Commercial Transportation<\/strong>
\nCapitalizing on the exceptional strength-to-weight ratio, automotive manufacturers utilize our high-strength coils to achieve vehicle lightweighting without sacrificing safety. It is widely specified for commercial truck and trailer chassis, heavy-duty body frames, EV (Electric Vehicle) battery pack enclosures, automotive seat frames, and impact-resistant bumper beams.<\/p>\n

Heavy-Duty Industrial & Logistics Storage<\/strong>
\nDesigned for maximum load-bearing performance and fatigue resistance, this grade is highly suited for industrial mega-warehousing and heavy-duty pallet racking systems. Furthermore, it provides the rugged durability required for manufacturing construction machinery, agricultural equipment, large-scale HVAC ventilation ductwork, and structural enclosures for electrical control cabinets.<\/p>\n

\u0986\u09ae\u09be\u09a6\u09c7\u09b0 \u09b8\u09be\u09b0\u09cd\u099f\u09bf\u09ab\u09bf\u0995\u09c7\u099f<\/h2>\n
\n
\n
\n
\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"\u09b8\u09be\u09b0\u09cd\u099f\u09bf\u09ab\u09bf\u0995\u09c7\u09b6\u09a8-\u09b8\u09cd\u0995\u09c7\u09b2\u09a1\"\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n
\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"EN\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n
\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"SGS\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n
\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"SGS\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n
\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"SGS\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n
\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"SGS\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n
\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"SGS\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n
\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"SGS\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n<\/p>\n<\/div>\n<\/div>\n<\/div>\n

Frequently Asked Questions about S550GD Galvanized Steel<\/b><\/h2>\n

Q1: What is the primary advantage of choosing S550GD over standard DX51D for my project?<\/b><\/p>\n

\n

\u098f:<\/b> The core advantage is material down-gauging<\/b>. Standard DX51D is for bending and profiling, with a yield strength of around 140 MPa. S550GD is structural-grade steel with a guaranteed yield strength of \u2265550 MPa. This allows engineers to use significantly thinner steel sheets to achieve the exact same load-bearing capacity, reducing the total structural weight and saving considerably on raw material and ocean freight costs.<\/p>\n<\/blockquote>\n

Q2: Can your S550GD coils withstand high-humidity or coastal environments?<\/b><\/p>\n

\n

\u098f:<\/b> Yes. For severe environments (such as Southeast Asian monsoon climates or coastal infrastructure), we highly recommend specifying a heavier zinc coating (up to Z275 g\/m\u00b2). Additionally, BOMIS provides advanced Aluminum-Zinc (AZ) and Zinc-Aluminum-Magnesium (ZAM) coating options on the S550GD substrate, which offer 3 to 5 times the corrosion resistance of standard hot-dipped galvanized steel.<\/p>\n<\/blockquote>\n

Q3: Does your S550GD comply with international structural standards?<\/b><\/p>\n

\n

\u098f:<\/b> Absolutely. Our S550GD is manufactured strictly in accordance with the European Union EN 10346<\/b> standard, which is widely recognized and accepted in global markets, including South America and the Middle East, for solar mounting, roofing, and structural frameworks. A comprehensive Mill Test Certificate (MTC) is provided with every shipment.<\/p>\n<\/blockquote>\n

Q4: What is the MOQ and typical lead time for custom S550GD orders?<\/b><\/p>\n

\n

\u098f:<\/b> As a direct manufacturer, our Minimum Order Quantity (MOQ) is typically 18 Metric Tons (equivalent to one 20ft container). Our standard production lead time ranges from 7 to 35 days, depending on your specific thickness, width requirements, and the current mill production schedule.<\/p>\n<\/blockquote>","protected":false},"excerpt":{"rendered":"

Engineered to meet the rigorous European EN 10346 standard, S550GD galvanized steel delivers exceptional structural integrity and high yield strength.<\/p>\n

 <\/p>\n

At BOMIS, we manufacture and supply this premium coated steel with highly customizable dimensions to fit your specific engineering requirements\u2014offering precision thicknesses ranging from 0.13mm up to 6.0mm, and widths up to 1500mm.<\/p>","protected":false},"featured_media":5613,"template":"","meta":{"rank_math_title":"S550GD Galvanized Steel-Bomi Steel","rank_math_description":"S550GD+Z\/AZ\/ZM hot-dip galvanized steel coil & sheet. EN 10346 standard, 550MPa yield strength. Widely used in structural engineering, new energy and automotive lightweight applications.","rank_math_canonical_url":"","rank_math_focus_keyword":""},"product_brand":[],"product_cat":[33],"product_tag":[58,48],"class_list":["post-5608","product","type-product","status-publish","has-post-thumbnail","product_cat-galvanized-steel-coil","product_tag-dx51d","product_tag-en-10346","first","instock","shipping-taxable","purchasable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/www.bomissteel.com\/bn\/wp-json\/wp\/v2\/product\/5608","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bomissteel.com\/bn\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.bomissteel.com\/bn\/wp-json\/wp\/v2\/types\/product"}],"version-history":[{"count":13,"href":"https:\/\/www.bomissteel.com\/bn\/wp-json\/wp\/v2\/product\/5608\/revisions"}],"predecessor-version":[{"id":7822,"href":"https:\/\/www.bomissteel.com\/bn\/wp-json\/wp\/v2\/product\/5608\/revisions\/7822"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bomissteel.com\/bn\/wp-json\/wp\/v2\/media\/5613"}],"wp:attachment":[{"href":"https:\/\/www.bomissteel.com\/bn\/wp-json\/wp\/v2\/media?parent=5608"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.bomissteel.com\/bn\/wp-json\/wp\/v2\/product_brand?post=5608"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.bomissteel.com\/bn\/wp-json\/wp\/v2\/product_cat?post=5608"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.bomissteel.com\/bn\/wp-json\/wp\/v2\/product_tag?post=5608"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}