Gnee Steel (Tianjin) Co., Ltd. is one of the most reliable manufacturers and suppliers of hot dipped galvanized steel coils in China. Welcome to wholesale customized hot dipped galvanized steel coils at low price from our factory. If you have any enquiry about free sample and cheap products, please feel free to email us.
Hot-dipped galvanized steel coils are manufactured through a process known as hot-dip galvanizing. In this process, the steel coils are immersed in a bath of molten zinc, which forms a metallurgical bond with the steel surface. The coils are then pulled out and cooled, resulting in a zinc-coated steel product.
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Product name |
GI / GL / Galvanized steel coil / Galvalume steel coil |
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Standard |
ASTM, DIN, JIS, BS, GB/T, GB, EN |
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Material |
Dx51D, Dx52D, Dx53D, DX54D, S220GD, S250GD, S280GD, S350GD, S350GD, S550GD; SGCC, SGHC, SGCH, SGH340, SGH400, SGH440, SGH490, SGH540, SGCD1, SGCD2, SGCD3, SGC340, SGC340 , SGC490, SGC570; SQ CR22 (230), SQ CR22 (255), SQ CR40 (275), SQ CR50 (340), SQ, CR80 (550), CQ, FS, DDS, EDDS, SQ CR33 (230), SQ CR37 (255), SQCR40 (275), SQ CR50 (340), SQ CR80 (550); or Customer’s Requirement |
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Application |
galvanized steel coil is one of the most widely used products, used extensively in the building sector, automotive, agricultural and other areas where the steel needs to be protected from corrosion. |
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Thick |
0.12-4.0 mm / BWG / AWG or as your request |
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Width |
20-1500 mm or as your request, Normal width is 914/1000/1219/1250/1500 mm |
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Zinc Coating |
30~600 G/M2 |
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Surface Structure |
Regular spangle, Minimum spangle, Zero spangle, Big spangle |
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Surface Treatment |
Passivation(C), Oiling(O), Lacquer sealing(L), Phosphating(P), Untreated(U) , Chromated/Non-Chromated, Oiled/Non-oiled, Skin pass |
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Package |
Water proof paper is inner packing, galvanized steel or coated steel sheet is outer packing , side guard plate, then wrapped by seven steel belt. or according to customer's requirement |
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Description |
Galvanized steel coil is mild steel with a coating of zinc. The zinc protects the steel by providing cathodic protection to the exposed steel, so should the surface be damaged the zinc will corrode in preference to the steel. |
Quality Inspection
Hot-dip galvanizing is the reaction of molten metal with an iron substrate to produce an alloy layer, thereby combining the substrate and the plating layer. Hot-dip galvanizing is to pickle iron and steel parts first. In order to remove iron oxide on the surface of iron and steel parts, after pickling, it is cleaned in an ammonium chloride or zinc chloride aqueous solution or a mixed solution of ammonium chloride and zinc chloride.And then sent to the hot-dip plating bath. Hot-dip galvanizing has the advantages of uniform coating, strong adhesion and long service life.
Packaging & Shipping
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Packing |
1. Generally package: Anti-water paper + strapped with min three strapping strips. |
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2. Standard exporting package: Anti-water paper and plastic + covered by iron sheet + strapped withmin three strapping strips. |
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3. Excellent package: Anti-water paper and plastic film + covered by iron sheet + strapped with minthree strapping strips + fixed on the iron or wooden pallets by strapping strips. |
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Shipping |
1. Shipping by containers |
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2. Shipping by bulk ship. |
Our Factory
FAQ
Q: Can you send samples?
A: Of course, we can send samples to all parts of the world, our samples are free, but customers need to bear the courier costs.
Q: What product information do I need to provide?
A: You need to provide the grade, width, thickness and the number of tons you need to purchase.
Q: About product prices?
A: Prices vary from period to period due to cyclical changes in the price of raw materials.
Q: What are the certifications for your products?
A: We have ISO 9001, SGS, EWC and other certifications.
Q: How long does your delivery time take?
A: In general, our delivery time is within 7-45 days.
Q: Does the product have quality inspection before loading?
A: Of course, all our products are strictly tested for quality before packaging.
Q: How to pack the products?
A: The inner layer has a waterproof paper outer layer with iron packaging and is fixed with a fumigation wooden pallet. It caneffectively protect products from corrosion during ocean transportation.
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