{"id":3545,"date":"2025-06-18T14:28:57","date_gmt":"2025-06-18T06:28:57","guid":{"rendered":"https:\/\/www.rbymetal.com\/?post_type=product&p=3545"},"modified":"2025-06-18T14:31:43","modified_gmt":"2025-06-18T06:31:43","slug":"g40-galvanized-coil","status":"publish","type":"product","link":"https:\/\/www.rbymetal.com\/index.php\/product\/g40-galvanized-coil\/","title":{"rendered":"G40 Galvanized Coil"},"content":{"rendered":"

G40 Galvanized Coil Description<\/strong><\/b><\/h2>\n

The coating designation G40 represents the type of coating and the weight of the applied coating. The letter “G” indicates that the coating is galvanized, meaning zinc-based. Meanwhile, the number “40” represents the\u00a0thickness\u00a0of zinc on the surface of the steel\u00a0coil.\u00a0Galvanized steel coil is covered with a zinc coating to provide corrosion resistance. The G40 protective coating prevents moisture from reaching the steel structure, thereby improving the corrosion resistance of the steel. This can extend the life expectancy of the steel.\u00a0G40 is the average coat weight and therefore provides moderate protection.<\/p>\n

\nScope of Application<\/strong><\/b><\/p>\n

Galvanizing products are widely used in industry, agriculture, animal husbandry and fishery, energy, transportation, chemical industry, light industry, home appliances, construction, communications, national defense and other fields.<\/p>\n

\n

Product Parameters<\/strong><\/b><\/p>\n\n\n\n\n\n\n\n\n\n
Product Name<\/td>\nG40 Galvanized Coil<\/td>\n<\/tr>\n
Thickness<\/td>\n0.12mm-3.5mm<\/td>\n<\/tr>\n
Width<\/td>\n600mm-1500mm<\/td>\n<\/tr>\n
Length<\/td>\n508mm\/610mm, Support Customization<\/td>\n<\/tr>\n
Standard<\/td>\nAISI, ASTM, DIN, JIS, GB, JIS, SUS, EN, etc.<\/td>\n<\/tr>\n
Zinc Layer<\/td>\nHot Galvanizing: 60-275g\/m\u00b2<\/td>\n<\/tr>\n
Pre-galvanized: 80-275g\/m\u00b2<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Chemical Composition<\/strong><\/b><\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Standard<\/td>\nGrade<\/td>\nC<\/td>\nSi<\/td>\nMn<\/td>\nP<\/td>\nS<\/td>\nTi<\/td>\n<\/tr>\n
Forcold Forming<\/p>\n

Chinese Standard<\/td>\n

DX51D+Z<\/td>\n0.12<\/td>\n0.50<\/td>\n0.60<\/td>\n0.100<\/td>\n0.045<\/td>\n0.30<\/td>\n<\/tr>\n
DX52D+Z<\/td>\n0.12<\/td>\n0.50<\/td>\n0.60<\/td>\n0.100<\/td>\n0.045<\/td>\n0.30<\/td>\n<\/tr>\n
DX53D+Z<\/td>\n0.12<\/td>\n0.50<\/td>\n0.60<\/td>\n0.100<\/td>\n0.045<\/td>\n0.30<\/td>\n<\/tr>\n
DX54D+Z<\/td>\n0.12<\/td>\n0.50<\/td>\n0.60<\/td>\n0.100<\/td>\n0.045<\/td>\n0.30<\/td>\n<\/tr>\n
DX56D+Z<\/td>\n0.12<\/td>\n0.50<\/td>\n0.60<\/td>\n0.100<\/td>\n0.045<\/td>\n0.30<\/td>\n<\/tr>\n
DX57D+Z<\/td>\n0.12<\/td>\n0.50<\/td>\n0.60<\/td>\n0.100<\/td>\n0.045<\/td>\n0.30<\/td>\n<\/tr>\n
Forcold Forming<\/p>\n

Japanese Standard<\/td>\n

SGCC<\/td>\n0.15<\/td>\n0.50<\/td>\n0.80<\/td>\n0.050<\/td>\n0.030<\/td>\n0.025<\/td>\n<\/tr>\n
SGCD1
\nSGCD2<\/td>\n		0.12
\n0.10<\/td>\n		0.50
\n0.50<\/td>\n		0.60
\n0.45<\/td>\n		0.040
\n0.030<\/td>\n		0.030
\n0.030<\/td>\n		0.025
\n0.025<\/td>\n<\/tr>\n
SGCD3<\/td>\n0.08<\/td>\n0.50<\/td>\n0.45<\/td>\n0.030<\/td>\n0.030<\/td>\n0.025<\/td>\n<\/tr>\n
SGCD4<\/td>\n0.06<\/td>\n0.50<\/td>\n0.45<\/td>\n0.030<\/td>\n0.030<\/td>\n0.025<\/td>\n<\/tr>\n
For\u00a0Structure<\/p>\n

Japanese Standard<\/td>\n

SGC340<\/td>\n0.25<\/td>\n0.50<\/td>\n1.70<\/td>\n0.200<\/td>\n0.035<\/td>\n0.025<\/td>\n<\/tr>\n
SGC400
\nSGC440<\/td>\n		0.25
\n0.25<\/td>\n		0.50
\n0.50<\/td>\n		1.70
\n2.00<\/td>\n		0.200
\n0.200<\/td>\n		0.035
\n0.035<\/td>\n		0.150
\n0.150<\/td>\n<\/tr>\n
SGC490<\/td>\n0.30<\/td>\n0.50<\/td>\n2.00<\/td>\n0.200<\/td>\n0.035<\/td>\n0.025<\/td>\n<\/tr>\n
SGC510<\/td>\n0.30<\/td>\n0.50<\/td>\n2.50<\/td>\n0.200<\/td>\n0.035<\/td>\n0.025<\/td>\n<\/tr>\n
For\u00a0Structure<\/p>\n

AISI Standard<\/td>\n

S220GD+Z<\/td>\n0.20<\/td>\n0.60<\/td>\n0.70<\/td>\n0.100<\/td>\n0.045<\/td>\n0.025<\/td>\n<\/tr>\n
S250GD+Z<\/td>\n0.20<\/td>\n0.60<\/td>\n0.70<\/td>\n0.100<\/td>\n0.045<\/td>\n0.025<\/td>\n<\/tr>\n
S280GD+Z<\/td>\n0.20<\/td>\n0.60<\/td>\n0.70<\/td>\n0.100<\/td>\n0.045<\/td>\n0.025<\/td>\n<\/tr>\n
S320GD+Z<\/td>\n0.20<\/td>\n0.60<\/td>\n0.70<\/td>\n0.100<\/td>\n0.045<\/td>\n0.025<\/td>\n<\/tr>\n
S350GD+Z<\/td>\n0.20<\/td>\n0.60<\/td>\n0.70<\/td>\n0.100<\/td>\n0.045<\/td>\n0.150<\/td>\n<\/tr>\n
S550GD+Z<\/td>\n0.20<\/td>\n0.60<\/td>\n0.70<\/td>\n0.100<\/td>\n0.045<\/td>\n0.150<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Mechanical Properties<\/strong><\/b><\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Grade<\/td>\nYield Strength MPa\u2265<\/td>\nTensile Strength MPa\u2265<\/td>\nElongation A%\u2265<\/td>\n<\/tr>\n
DX51D Z\/ZM\/AZ\/AM<\/td>\n240-380<\/td>\n270-500<\/td>\n22<\/td>\n<\/tr>\n
DX52D Z\/ZM\/AZ\/AM<\/td>\n140-300<\/td>\n270-420<\/td>\n26<\/td>\n<\/tr>\n
DX53D Z\/ZM\/AZ\/AM<\/td>\n140-260<\/td>\n270-380<\/td>\n30<\/td>\n<\/tr>\n
DX54D Z\/ZM\/AZ\/AM<\/td>\n120-220<\/td>\n260-350<\/td>\n36<\/td>\n<\/tr>\n
S220GD Z\/ZM\/AM<\/td>\n220<\/td>\n300<\/td>\n20<\/td>\n<\/tr>\n
S250GD Z\/ZM\/AZ\/AM<\/td>\n250<\/td>\n330<\/td>\n19<\/td>\n<\/tr>\n
S280GD Z\/ZM\/AM<\/td>\n280<\/td>\n360<\/td>\n18<\/td>\n<\/tr>\n
S300GD A\/AM<\/td>\n300<\/td>\n380<\/td>\n18<\/td>\n<\/tr>\n
S320GD Z\/ZM\/AM<\/td>\n320<\/td>\n390<\/td>\n17<\/td>\n<\/tr>\n
S350GD Z\/ZM\/AZ\/AM<\/td>\n350<\/td>\n420<\/td>\n16<\/td>\n<\/tr>\n
S450GD A\/AM<\/td>\n450<\/td>\n480<\/td>\n15<\/td>\n<\/tr>\n
S550GD Z\/ZM\/AZ\/AM<\/td>\n550<\/td>\n550<\/td>\n–<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Galvanized Surface Selection<\/strong><\/b><\/p>\n\n\n\n\n
Zero Spangle<\/td>\nMinimized Spangle<\/td>\nNormal Spangle<\/td>\nLarge\u00a0Spangle<\/td>\n<\/tr>\n
\"\"<\/td>\n\"\"<\/td>\n\"\"<\/td>\n\"\"<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n\n\n
Use of The Environment<\/td>\nRecommended Zinc Thickness<\/td>\n<\/tr>\n
Indoor Use<\/td>\nZ10 or Z12 (100g\/\u33a1or 120g\/\u33a1)<\/td>\n<\/tr>\n
Suburbs<\/td>\nZ20 and Painting (200g\/\u33a1)<\/td>\n<\/tr>\n
Urban or Industrial Area<\/td>\nZ27 (270g\/\u33a1) or G90 (US Standard) and painted<\/td>\n<\/tr>\n
Coastal Area<\/td>\nThicker than Z27\u00a0(270g\/\u33a1) or G90 (US Standard) and painted<\/td>\n<\/tr>\n
Punch or Deep Drawing Application<\/td>\nThicker than Z27 (270grams\/\u33a1) or G90 (US Standard) avoid coating peeling after stamping<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n\n\n\n\n\n
Surface Treatment Type<\/td>\nCode<\/td>\nFeatures<\/td>\n<\/tr>\n
Chromic Acid Treatment<\/td>\nC<\/td>\nGood corrosion resistance, suitable for bare state<\/td>\n<\/tr>\n
Chromic Acid Treatment+Oiling<\/td>\nS<\/td>\nGood corrosion resistance<\/td>\n<\/tr>\n
Phosphoric Acid Treatment (Including Sealing Treatment)<\/td>\nP<\/td>\nHave a certain corrosion resistance, good paint performance<\/td>\n<\/tr>\n
Phosphoric Acid Treatment (Including Sealing Treatment)+Oiling<\/td>\nQ<\/td>\nHas a certain corrosion resistance, good paint performance, prevent rust during transportation and storage<\/td>\n<\/tr>\n
Phosphoric Acid Treatment (Excluding Sealing Treatment)<\/td>\nT<\/td>\nHave a certain corrosion resistance, good paint performance<\/td>\n<\/tr>\n
Phosphoric Acid Treatment (Excluding Sealing Treatment)+Oiling<\/td>\nV<\/td>\nHas a certain corrosion resistance, good paint performance, and prevent rust<\/td>\n<\/tr>\n
Oiling<\/td>\nO<\/td>\nPrevent rust during transportation and storage<\/td>\n<\/tr>\n
No Treatment<\/td>\nM<\/td>\nSuitable for immediate painting<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Material Comparison<\/strong><\/b><\/p>\n\n\n\n\n\n\n\n\n
Chinese Standard<\/td>\nJapan Standard<\/td>\nEuropean Standard<\/td>\n<\/tr>\n
DX51D Z\/DC51D Z (CR)<\/td>\nSGCC<\/td>\nDX51D Z<\/td>\n<\/tr>\n
DX52D Z\/DC52D Z<\/td>\nSGCD1<\/td>\nDX52D With<\/td>\n<\/tr>\n
DX53D Z\/DC53D Z\/DX54D Z\/DC54D Z<\/td>\nSGCD2\/SGCD3<\/td>\nDX53D Z\/DX54D Z<\/td>\n<\/tr>\n
S220\/250\/280\/320\/350\/550GD Z<\/td>\nSGC340\/400\/440\/490\/570<\/td>\nS220\/250\/280\/320\/350GD Z<\/td>\n<\/tr>\n
DX51D Z\/DD51D Z (HR)<\/td>\nSGHC<\/td>\nDX51D Z<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Galvanized steel coils are covered with a zinc coating to provide corrosion resistance. G40 galvanized steel coil is a galvanized layer name or A653 standard specification specified in the hot-dip coating process galvanized or zinc-iron alloy steel coil requirements.<\/p>\n","protected":false},"featured_media":3493,"template":"","meta":{"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_kadence_starter_templates_imported_post":false,"_kad_post_transparent":"default","_kad_post_title":"","_kad_post_layout":"default","_kad_post_sidebar_id":"","_kad_post_content_style":"default","_kad_post_vertical_padding":"default","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false},"product_brand":[],"product_cat":[54,34,29],"product_tag":[],"class_list":{"0":"post-3545","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-galvanized-coil-strip","7":"product_cat-galvanized-steel","8":"product_cat-product","10":"first","11":"instock","12":"shipping-taxable","13":"product-type-simple","14":"entry","15":"content-bg","16":"loop-entry"},"taxonomy_info":{"product_cat":[{"value":54,"label":"Galvanized Coil\/Strip"},{"value":34,"label":"Galvanized Steel"},{"value":29,"label":"Product"}]},"featured_image_src_large":["https:\/\/www.rbymetal.com\/wp-content\/uploads\/2025\/06\/47f098c3-1ea9-479d-ac9e-687576dfa603.jpg",800,800,false],"author_info":[],"comment_info":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.rbymetal.com\/index.php\/wp-json\/wp\/v2\/product\/3545","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.rbymetal.com\/index.php\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.rbymetal.com\/index.php\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.rbymetal.com\/index.php\/wp-json\/wp\/v2\/media\/3493"}],"wp:attachment":[{"href":"https:\/\/www.rbymetal.com\/index.php\/wp-json\/wp\/v2\/media?parent=3545"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.rbymetal.com\/index.php\/wp-json\/wp\/v2\/product_brand?post=3545"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.rbymetal.com\/index.php\/wp-json\/wp\/v2\/product_cat?post=3545"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.rbymetal.com\/index.php\/wp-json\/wp\/v2\/product_tag?post=3545"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}