Chinese wholesale Steel Roofing Sheet  - HRC Carbon Metal Hot Rolled Iron Black Steel Coil – Ruigang

Product Specifications

Thickness: 0.35-10mm

Width: 600-2500mm

Material: HC340LAD+Z HC340LAD+Z HC220BD+Z DX54D-DX56D+Z
HC220BD+Z DX54D-DX56D+Z DX51D+Z-MD DX51D+Z-HR GB/T2518-2008 EN 10327-2004 DX52D-DX53D+Z
SGH340 SGC340 SGH440 JIS G3302-2010 Q/HG007-2016
GB/T2518-2008 S350GD+Z S550GD+Z
SGCC DX51D+Z Q/HG007-2016 GB/T2518-2008

Coating weight/(g/㎡) (double-sided) code Coating weight/ (g/㎡) (double-sided) code
(60) (Z60) (40) (ZF40)80 (Z80) 60 (ZF60)100 (Z100) 80 (ZF80) 120 (Z120) 100 (ZF100) 150 (Z150) 120 (ZF120) 180 (Z180) 150 (ZF150) 200 (Z200) 180 (ZF180) 220 (Z220) 250 (Z250) 275 (Z2750) 350 (Z350)450 (Z450)600 (Z600)

Product Use

● Automobile manufacturing, refrigerators, construction, ventilation and heating facilities, and furniture manufacturing. Construction industry: roofs, roof components, balcony panels, window sills, newsstands, warehouses, rolling shutters, heaters, rainwater pipes, etc.

● Household appliances: refrigerators, washing machines, switch cabinets, air conditioners, microwave ovens, bread machines, copiers, vending machines, electric fans, vacuum cleaners, etc.

● Furniture industry: lampshades, wardrobes, tables, bookshelves, counters, signboards, medical equipment, etc.

● Transportation industry: car ceilings, car shells, compartment panels, tractors, trams, containers, highway fences, ship compartment panels, etc.

● In other aspects, the color-coated steel plates of musical instrument shells, trash cans, billboards, clocks, photographic equipment, measuring instruments, etc. are hot-dip galvanized sheets, hot-dip galvanized sheets, electro-galvanized sheets, etc.

Plating Definition

(1) Normal spangle coating

During the normal solidification process of the zinc layer, the zinc grains grow freely and form a coating with an obvious spangle shape.

(2) Minimized spangle coating

During the solidification process of the zinc layer, the zinc grains are artificially restricted to form the smallest possible spangle coating.

(3) Spangle-free spangle-free coating

The coating obtained by adjusting the chemical composition of the plating solution has no visible spangle morphology and a uniform surface.

(4) Zinc-iron alloy coating zinc-iron alloy coating

Heat treatment of the steel strip after passing through the galvanizing bath to form an alloy layer of zinc and iron throughout the coating. A coating that can be painted directly without further treatment other than cleaning.

(5) Differential coating

For both sides of galvanized steel sheet, coatings with different zinc layer weights are required.

(6) Smooth skin pass

Skin-passing is a cold-rolling process performed on galvanized steel sheets with a small amount of deformation for one or more of the following purposes. Improve the surface appearance of galvanized steel sheet or be suitable for decorative coating; make the finished product not see the phenomenon of slip line (Lydes line) or crease during processing to minimize temporarily, etc. Galvanized sheet steel products are mainly used in construction, light industry, automobile, agriculture, animal husbandry, fishery and commercial industries. Among them, the construction industry is mainly used to manufacture anti-corrosion industrial and civil building roof panels, roof grilles, etc.; the light industry industry uses it to manufacture household appliance shells, civil chimneys, kitchen utensils, etc., and the automotive industry is mainly used to manufacture corrosion-resistant parts for cars, etc. ; Agriculture, animal husbandry and fishery are mainly used for food storage and transportation, meat and aquatic products freezing processing tools, etc.