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PRODUCT DESCRIPTION

Product Description

Galvanized sheet refers to a steel sheet plated with a layer of zinc on the surface.Galvanized steel plate is to prevent the surface of the steel plate from being corroded and prolong its service life, and the surface of the steel plate is coated with a layer of metal zinc.

Classification

According to the production and processing methods, it can be divided into the following categories:

①Hot dip galvanized steel sheet. The sheet steel is immersed in a molten zinc bath, and a sheet of zinc is adhered to its surface. At present, it is mainly produced by continuous galvanizing process, that is, galvanized steel plate is made by continuously immersing rolled steel plates in a plating tank where zinc is melted ;

②Alloyed galvanized steel sheet. This kind of steel plate is also made by hot-dip method, but after it is out of the tank, it is heated to about 500 ℃ immediately to form an alloy film of zinc and iron. This galvanized sheet has good paint adhesion and weldability;

③ Electro-galvanized steel sheet. The galvanized steel sheet produced by the electroplating method has good workability. However, the coating is thin, and the corrosion resistance is not as good as that of the hot-dip galvanized sheet;

④Single-sided and double-sided differential galvanized steel. Single-sided galvanized steel sheet, that is, a product that is galvanized on only one side. In welding, painting, anti-rust treatment, processing, etc., it has better adaptability than double-sided galvanized sheet. In order to overcome the disadvantage that one side is not coated with zinc, there is another galvanized sheet coated with a thin layer of zinc on the other side, that is, double-sided differential galvanized sheet;

⑤Alloy and composite galvanized steel sheet. It is made of zinc and other metals such as aluminum, lead, zinc, etc. to make alloys or even composite plated steel plates. This kind of steel plate not only has excellent anti-rust performance, but also has good coating performance;

In addition to the above five types, there are also colored galvanized steel sheets, printed and painted galvanized steel sheets, and PVC laminated galvanized steel sheets. But the most commonly used is still hot-dip galvanized sheet.

Main production plants and import producing countries:

①Main domestic production plants: WISCO , Angang , Baosteel Huangshi, MCC Hengtong , Shougang, Pangang , Handan, Magang , Fujian Kaijing, etc.;

②The main foreign producers are Japan, Germany, Russia, France, South Korea, etc.

Product

Galvanized steel sheet

Material

SGCC,SGCH,G350,G450,G550,DX51D,DX52D,DX53D

Thickness

0.12-6.0mm

Width

20-1500mm

Zinc coating

Z40-600g/m2

Hardness

Soft hard(60),medium hard(HRB60-85),full hard(HRB85-95)

Surface structure

Regular spangle, Minimum spangle, Zero spangle, Big spangle

Surface treatment

Chromated/Non-Chromated, Oiled/Non-oiled, Skin pass

Package

Covered with a layer of plastic film and cardboard,packed on
the wooden pallets/ iron packing,bound with iron belt,loaded in the containers.

Dimensions

Specification

Zinc layer

material

0.20*1000*C

80

DX51D + Z

0.25*1000*C

80

DX51D + Z

0.3*1000*C

80

DX51D + Z

0.35*1000*C

80

DX51D + Z

0.4*1000*C

80

DX51D + Z

0.5*1000*C

80

S280GD + Z

0.5*1000*C

80

DX51D + Z

0.58*1000*C

80

S350GD+Z

0.6*1000*C

80

DX51D + Z

0.7*1000*C

80

DX51D + Z

0.75*1000*C

80

DX51D + Z

0.8*1000*C

80

DX51D + Z

0.8*1000*C

80

DX53D+Z

0.85*1000*C

80

DX51D + Z

0.9*1000*C

80

DX51D + Z

0.98*1000*C

80

DX51D + Z

0.95*1000*C

80

DX51D + Z

1.0*1000*C

80

DX51D + Z

1.1*1000*C

80

DX51D + Z

1.2*1000*C

80

DX51D + Z

1.2*1050*C

150

CSB

1.4*1000*C

80

DX51D + Z

Specification

Zinc layer

material

1.5*1000*C

80

DX51D + Z

1.55*1000*C

180

S280GD + Z

1.55*1000*C

180

S350GD+Z

1.6*1000*C

80

DX51D + Z

1.8*1000*C

80

DX51D + Z

1.9*1000*C

80

DX51D + Z

1.95*1000*C

180

S350GD

1.98*1000*C

80

DX51D + Z

1.95*1000*C

180

S320GD+Z

1.95*1000*C

180

S280GD + Z

1.95*1000*C

275

S350GD+Z

2.0*1000*C

80

DX51D + Z

Specification

Zinc layer

material

0.36*1250*C

80


0.4*1250*C

80

DX51D + Z

0.42*1250*C

80

DX51D + Z

0.45*1250*C

225

S280GD + Z

0.47*1250*C

225

S280GD + Z

0.5*1250*C

80

SGCC

0.55*1250*C

180

S280GD + Z

0.55*1250*C

225

S280GD + Z

0.6*1250*C

80

DX51D + Z

0.65*1250*C

180

DX51D + Z

0.7*1250*C

80

DX51D + Z

0.7*1250*C

80

SGCC

0.75*1250*C

80

DX51D + Z

0.8*1250*C

80

DX51D + Z

0.9*1250*C

80

DX51D + Z

0.95*1250*C

80

DX51D + Z

Specification

Zinc layer

material

1.0*1250*C

80

DX51D + Z

1.15*1250*C

80

DX51D + Z

1.1*1250*C

80

DX51D + Z

1.2*1250*C

80

DX51D + Z

1.35*1250*C

80

DX51D + Z

1.4*1250*C

80

DX51D + Z

1.5*1250*C

80

DX51D + Z

1.55*1250*C

80

DX51D + Z

1.6*1250*C

120

SGCC

1.6*1250*C

80

DX51D + Z

1.8*1250*C

80

DX51D + Z

1.85*1250*C

90

DX51D + Z

1.95*1250*C

80

DX51D + Z

1.75*1250*C

80

DX51D + Z

2.0*1250*C

80

DX51D + Z

2.0*1250*C

120

SGCC

2.5*1250*C

80

DX51D + Z

Generally speaking, the thicker the galvanized sheet, the greater the allowable error, instead of a fixed 0.02-0.04 mm, the thickness deviation also has different requirements according to the yield, tensile coefficient, etc. The length and width deviation is generally 5mm, and the thickness of the plate Generally between 0.4-3.2.

plateCertificates and ClientsApplication industry

Product Standard
JIS G3302—94 Galvanized Steel Sheet;
JIS G3312—94 Colored Galvanized Iron Sheet;
JIS G3313—90 (96) Electro-galvanized Steel Sheet and Strip; General Requirements for Hot-Dip Galvanized Sheet;
ASTM A526—90 Commercial Grade Heat Galvanized steel sheet;
ASTMA 527-90 (75) clinching grade hot-dip galvanized steel sheet;
ASTMA528-90 deep-drawing grade hot-dip galvanized steel sheet; hot-dip galvanized steel sheet for roofing and siding;
ASTMA444-89 for trenches Hot-dip galvanized sheet;
ASTM A446-9 3 structural grade hot-dip galvanized sheet;
ASTMA599-92 cold-rolled electro-galvanized sheet;
ASTMA642-90 hot-dip galvanized special deoxidized deep-drawing grade sheet;
ΓOCT7118-78 galvanized sheet ;
DINEN10142-91 part 1 mild steel hot-dip galvanized steel strip and sheet;
DINEN1012-92 part 2 hot-dip galvanized sheet.
Test standard
JIS H0401-83 hot-dip galvanizing test method;
DIN50952-69 hot-dip galvanizing test method.
The index
galvanized sheet and strip 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.;
List of technical indicators, properties and specifications of
galvanized sheet Hot dip galvanized steel sheet (coil) Surface treatment
L Chromic acid passivation
Y Oiling
LY Chromic acid passivation and oiling
GZ Finishing machine
Finishing surface structure
Surface structure characteristics Uses
Normal spangle (Z) Zinc spangle obtained by condensation of zinc layer under normal conditions after galvanizing General purpose
Finishing zinc Flower (GZ) The galvanized sheet is smoothed by the finishing machine, and the zinc flower on the surface of the galvanized sheet
is leveled 180o cold -formed
ordinary PV — 270-500 — d=0, intact, not dezincified deep drawing SC — 270-380 ≥30 d=0, intact, not dezincified
mechanical engagement JY — 270-500 — d=0, intact , not dezincified super deep drawing SC — 270-380 ≥30 d=0, intact, not dezincified
structure JG ≥240 ≥370 ≥18 d=0, intact, not dezincified

Calculation formula of galvanized sheet: M=7.85*length*width*height + calculated weight of zinc layer (check table)
(density of steel=7.85 g/cm3)

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