What Are the Different Uses of Galvanized Sheet Metal?

Galvanized steel refers to a steel plate whose surface is coated with zinc. Galvanizing is a commonly used economical and effective anti-rust method. About half of the world's zinc output is used for this process.

Galvanized sheet

Galvanized

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

specification	Zinc layer	Texture
0.25 * 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	Texture
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	Texture
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	Texture
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

The relevant product standards list the recommended standard thickness, length and width of galvanized sheet and their allowable deviations. Generally speaking, the thicker the galvanized sheet, the larger the tolerance, rather than the 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

(1) Surface state: Due to the different treatment methods in the galvanized sheet, the surface state is also different, such as ordinary zinc flower, fine zinc flower, flat zinc flower, non-zinc flower, and phosphated surface. German standards also specify surface levels.

(2) The galvanized sheet should have a good appearance and must not have defects that are harmful to the use of the product, such as no plating, holes, cracks and scum, exceeding plating thickness, abrasion, chromic acid dirt,

Standard value of galvanizing amount: Galvanizing amount is a commonly used effective method to indicate the thickness of zinc layer of galvanized sheet. The unit of galvanizing amount is g / m2. The Japanese, American and German standards specify the amount of galvanized sheet steel as follows.

(1)

Different countries have different requirements for the chemical composition of galvanized substrates. National standards generally measure the content of carbon, manganese, phosphorus, sulfur, and silicon.

Divided into two types: galvanized sheet cut into fixed length and rolled galvanized sheet packaging. It is usually packed in iron sheet, lined with moisture-proof paper, and tied with an iron waist on the bracket. Bundling should be secure to prevent the galvanized sheets inside from rubbing against each other.

In recent years, China s production of galvanized sheet has increased year by year, while imports have also increased year by year, and the growth rate is even higher than that of production volume. After deducting repeated production statistics, the consumption of galvanized sheet is about 5.27 million tons. After 1999, the import volume of galvanized sheet exceeded the production volume for the first time, and the self-sufficiency rate of domestic products was less than 50%, and it tended to decrease year by year.

(1) Status of consumption of galvanized sheet

In recent years, the increase in domestic galvanized sheet production is mainly due to

The increase in domestic consumption of galvanized sheet is mainly driven by imports. In recent years, the import volume of galvanized sheet has increased year by year, and the imported varieties are mainly electrogalvanized sheet, but the proportion of imported galvanized sheet has decreased year by year; accordingly, the import ratio of hot galvanized sheet has increased year by year. In 2003, our country

Galvanized sheet calculation formula: M = 7.85 * length * width * height + calculated weight of zinc layer (see table)

(Density of steel = 7.85 g / cm3)