GI galvanized steel sheet zinc coating 12 gauge 16 gauge metal Hot Rolled

GI galvanized steel sheet zinc coating 12 gauge 16 gauge metal Hot Rolled

On December 16th 2022 by admin No Comments

Hot Rolled Zinc Galvanized Steel Sheet Zinc Coated Steel Plate

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.

Technical Standard EN10147, EN10142, DIN 17162, JIS G3302, ASTM A653
Steel Grade Dx51D, Dx52D, Dx53D, DX54D,ST12-15, 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
Type Coil/Sheet/Plate/Strip
Thickness 0.12-6.00mm,or customer’s requirement
Width 600mm-1500mm, according to customer’s requirement
Type of Coating Hot Dipped Galvanized Steel(HDGI)
Zinc Coating 30-275g/m2
Surface Treatment Passivation(C), Oiling(O), Lacquer sealing(L), Phosphating(P), Untreated(U)
Surface Structure Normal spangle coating(NS), minimized spangle coating(MS), spangle-free(FS)
Quality Approved by SGS,ISO
ID 508mm/610mm
Coil Weight 3-20 metric ton per coil
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
Export market Europe, Africa, Central Asia, Southeast Asia, Middle East, South America, North America, et


RuiYi / Top Metal Manufacure, as a Cold rolled, Galvalume steel coil manufacturer with an annual output of 50,000 tons, has been rated as a famous Cold rolled steel coil manufacturer by the Iron and Steel Association. It can customize all kinds of cold rolled steel coils and strips. We are also an excellent Cold rolled Galvanized steel coil exporter and Hot rolled steel coil Exporter.

As a Cold rolled, Galvalume steel coil manufacturer, our cold rolled steel coil is a steel plate that is further rolled to a target thickness at room temperature below the recrystallization temperature. Compared with hot-rolled steel plate, the thickness of cold-rolled steel plate is more accurate, and the surface is smooth and beautiful.

Hot-rolled steel coils are used as raw materials, and after pickling to remove the oxide scale, they are cold rolled. The finished product is hard-rolled coils. The cold-work hardening caused by continuous cold deformation increases the strength and hardness of the hard-rolled coils and decreases the toughness index. , So the stamping performance will deteriorate and can only be used for simple deformed parts.

The thickness of cold-rolled sheet is generally between 0.1-8.0mm, and the thickness of cold-rolled sheet produced by most factories is less than 4.5mm.

Cold rolling is processed from hot-rolled sheets at room temperature. Although the rolling process will heat up the steel plate, it is still called cold rolling. Because the hot rolling is cold rolled after continuous cold deformation, the mechanical properties are relatively poor and the hardness is too high. It must be annealed to restore its mechanical properties, and the ones that are not annealed are called rolled hard coils. Rolled hard coils are generally used to make products that do not need to be bent or stretched.

Galvanized Steel 0.18mm-20mm thick galvanized steel sheet 2mm thick Hot dip galvanized steel sizes galvanized sheet metal roll

bse metal type Grade CHEMICAL COMPOSITION %
C Si Mn P
cold rolled steel sheet DC51D+Z (St01Z, St02Z, St03Z) , DC51D+ZF ≤0.10 ≤0.50 ≤0.035
DC52D+Z (St04Z), DC52D+ZF ≤0.08 ≤0.45 ≤0.030
DC53D+Z (St05Z), DC53D+ZF ≤0.08 ≤0.40 ≤0.030
DC54D+Z (St06Z), DC54D+ZF ≤0.01 ≤0.10 ≤0.30 ≤0.025
DC56D+Z (St07Z), DC56D+ZF ≤0.01 ≤0.10 ≤0.30 ≤0.025
hot rolled steel sheet DD51D+Z (St01ZR, St02ZR) ≤0.10 ≤0.50 ≤0.035
DD54D+Z (St06ZR) ≤0.01 ≤0.10 ≤0.30 ≤0.02

HDGI Sheet

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