Galvanized steel strip

Use of galvanized strip steel: strip steel is widely used in the production of welded steel pipes, as the blank of cold bending section steel, and in the manufacture of bicycle frames, rims, clamps, washers, spring blades, saw blades, hardware products and blades. The use of high hot dip galvanized strip steel is naturally associated with the application of galvanized strip steel in construction, light industry, automobile, agriculture, animal husbandry, fishery, commerce and other industries.

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Galvanized Strip

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Product Description

Galvanized strip steel is a kind of raw material called (zinc), which is used to coat the long and narrow strip steel which is cold-rolled or hot-rolled to varying degrees. Hot dip galvanizing has the advantages of even coating, strong adhesion and long service life. Complex physical and chemical reactions occur between the hot-dip galvanized steel pipe substrate and the molten plating solution, forming a corrosion resistant zinc iron alloy layer with compact structure. The alloy layer is integrated with the pure zinc layer and the strip steel matrix. Therefore, it has strong corrosion resistance.
Use of galvanized strip steel: strip steel is widely used in the production of welded steel pipes, as the blank of cold bending section steel, and in the manufacture of bicycle frames, rims, clamps, washers, spring blades, saw blades, hardware products and blades. The use of high hot dip galvanized strip steel is naturally associated with the application of galvanized strip steel in construction, light industry, automobile, agriculture, animal husbandry, fishery, commerce and other industries.

Product name:	Galvanized Strip
Place of Origin:	China
Type:	Steel Strip
Standard:	AISI, ASTM, BS, DIN, GB, JIS ETC.
Certificate:	ISO9001
Grade:	SPCC,SPCD,SPCE/DC01.DC02.DC03/ST12,Q195 .Etc
Thickness:	0.11-5.0mm
Surface structure:	anti-finger print /skin pass/oiled/ dry/chromated
Size:	Customized according to customer needs
Tolerance:	±1%
Processing Service:	Bending, Welding, Decoiling, Cutting, Punching, Welding
Invoicing:	by actual weight
Delivery Time:	7-15 days
Technique:	Hot Rolled Based, Cold Rolled
Port:	Tianjin Qingdao or according to your requirement
Packaging Details	in bundles, in bulk, customized packing.

Chemical composition

Standard	Grade	C	Si	Mn	P	S	Ti
For cold forming Chinese standard	DX51D+Z	0.12	0.50	0.60	0.100	0.045	0.30
	DX52D+Z	0.12	0.50	0.60	0.100	0.045	0.30
	DX53D+Z	0.12	0.50	0.60	0.100	0.045	0.30
	DX54D+Z	0.12	0.50	0.60	0.100	0.045	0.30
	DX56D+Z	0.12	0.50	0.60	0.100	0.045	0.30
	DX57D+Z	0.12	0.50	0.60	0.100	0.045	0.30
For cold forming Japanese standard	SGCC	0.15	0.50	0.80	0.050	0.030	0.025
	SGCD1 SGCD2	0.12 0.10	0.50 0.50	0.60 0.45	0.040 0.030	0.030 0.030	0.025 0.025
	SGCD3	0.08	0.50	0.45	0.030	0.030	0.025
	SGCD4	0.06	0.50	0.45	0.030	0.030	0.025
For structure Japanese standard	SGC340	0.25	0.50	1.70	0.200	0.035	0.025
	SGC400 SGC440	0.25 0.25	0.50 0.50	1.70 2.00	0.200 0.200	0.035 0.035	0.150 0.150
	SGC490	0.30	0.50	2.00	0.200	0.035	0.025
	SGC510	0.30	0.50	2.50	0.200	0.035	0.025
For structure AISI standard	S220GD+Z	0.20	0.60	0.70	0.100	0.045	0.025
	S250GD+Z	0.20	0.60	0.70	0.100	0.045	0.025
	S280GD+Z	0.20	0.60	0.70	0.100	0.045	0.025
	S320GD+Z	0.20	0.60	0.70	0.100	0.045	0.025
	S350GD+Z	0.20	0.60	0.70	0.100	0.045	0.150
	S550GD+Z	0.20	0.60	0.70	0.100	0.045	0.150

Mechanical behavior

Grade	Yield Strength MPa≥	Tensile strength MPa≥	Elongation A%≥
DX51D+Z/ZM/AZ/AM	240-380	270-500	22
DX52D+Z/ZM/AZ/AM	140-300	270-420	26
DX53D+Z/ZM/AZ/AM	140-260	270-380	30
DX54D+Z/ZM/AZ/AM	120-220	260-350	36
S220GD+Z/ZM/AM	220	300	20
S250GD+Z/ZM/AZ/AM	250	330	19
S280GD+Z/ZM/AM	280	360	18
S300GD+AZ/AM	300	380	18
S320GD+Z/ZM/AM	320	390	17
S350GD+Z/ZM/AZ/AM	350	420	16
S450GD+AZ/AM	450	480	15
S550GD+Z/ZM/AZ/AM	550	550	－

Surface selection

Zero zinc flower	Small zinc flower	Normal zinc flower	Big zinc flower

Material comparison

Chinese standard	Japanese standard	European standard
DX51D+Z/DC51D+Z (CR)	SGCC	DX51D+Z
DX52D+Z/DC52D+Z	SGCD1	DX52D+Z
DX53D+Z/DC53D+Z/DX54D+Z/DC54D+Z	SGCD2/SGCD3	DX53D+Z/DX54D+Z
S220/250/280/320/350/550GD+Z	SGC340/400/440/490/570	S220/250/280/320/350GD+Z
DX51D+Z/DD51D+Z (HR)	SGHC	DX51D+Z

Production process:
The first stage: pickling and decontamination of the whole roll of strip steel to make the surface bright and clean.
The second stage: after pickling, it is cleaned in ammonium chloride or zinc chloride aqueous solution or mixed ammonium chloride and zinc chloride aqueous solution tank, and then sent to the hot dip tank for galvanizing.
The third stage: after the strip steel is galvanized, it is rolled up and put into storage. The galvanized layer can generally not be less than 500g/m2 according to the customer's needs, and any sample shall not be less than 480g/m2.
Post treatment of galvanized strip steel includes passivation, pre phosphating and oiling. First of all, passivation treatment should be carried out on the galvanized strip steel, which can improve the surface structure and luster of the zinc coating, improve the corrosion resistance and service life of the zinc coating, and improve the adhesion between the coating and the base metal. The chromate passivation treatment is mainly used. Some activators, such as fluoride, phosphoric acid or sulfuric acid, are added to the passivation solution to obtain a thicker chromate film after passivation. When there is fluoride in the passivation solution, the surface tension of the steel strip can be reduced, the film forming reaction can be accelerated, and the chemical polishing effect can be increased to make the passivation film fine and bright.

Packing and shipping

The company is located in the Free Trade Pilot Zone of Jinan City, Shandong Province, close to China's famous ports of Tianjin Port and Qingdao Port. It has a superior production and operation environment, convenient logistics exports, mature industrial facilities, and complete supporting industries.

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Galvanized Strip