Hot Dipped / Electrolytic DC01 Dx51d Dx52D Dx53D G90 Z180 Z275 SGCC Z100 Z120 Z180 Galvanized Steel Coil Gi Steel Coil

• After-sales Service: Support
• Warranty: Support
• Standard: ASTM, JIS, AISI, DIN
• Certification: ISO
• Surface Treatment: Galvanized
• Technique: Hot Rolled
• Model NO.: Dx51D Dx52D Dx53D
• Application: Construction
• Edge: Slit edge
• Stock: Stock
• Width: 500-2200mm
• Tolerance: 1%
• Price Term: CIF CFR Fob Ex-Work
• Delivery Time: 14 Days
• Transport Package: Standard Export Seaworthy Package
• Trademark: YF Steel
• Origin: Tianjin, China
• Production Capacity: 10000tons/Month

Product Description

Galvanized steel is a rolled product of carbon flat steel with zinc coating on the surface. This coating increases the corrosion resistance of steel coils, cutting coils or plates. The most commonly used method for galvanized steel is hot-dip galvanizing.
In hot dip galvanizing process, the basic carbon steel coil is immersed in acid bath to remove molten steel. After cleaning the steel and removing its oxide scale, the steel is continuously immersed in a molten zinc bath to form a metallurgical binder and protective coating. The weight of the coating is controlled. The weight of the coating immediately increases the corrosion resistance of the steel.
Zinc bath in hot dip galvanizing contains trace elements, such as aluminum. The presence of these trace elements optimizes the adhesion of the coatings and increases the ductility of galvanized steel sheets, galvanized coils and galvanized seam coils, making the materials hundreds of products we use every day.
Spangle on GI steel:
In the era of steel manufacturing, galvanized steel sheets were used to include large, flower-like zinc crystal patterns on the surface of steel, called "flash." Similar to a huge hexagonal snowflake. Although today's galvanized steel still contains flashes, the galvanized steel produced by modern steel mills has a flash of light that is barely visible to the naked eye. This is called the smallest flash and zero flash galvanized steel.
A common but disappearing misunderstanding for large spot galvanized steel is that it has better corrosion resistance than the minimum spot/zero spot. This is not the case. The minimum spot and zero spot galvanized steel surface is smoother and the spot is smaller, resulting in a better corrosion resistant coating.
Zinc coating on galvanized steel coils:
The weight of the galvanized layer of the galvanized steel coil is controlled by the steel mill during the production cycle and varies according to customer requirements and the end use of the product. These coating weights are directly proportional to the expected life of the steel.
Our zinc coating range is from 30 g/m² to 275 g/m²,for more than this zinc coating,we could also make it for you.
Steel standards:
ASTM A653m/A924M/A792,China GB standards Q235/345.

Product Description

Product	Galvanized Steel Coil
Standard	ASTM, BS, EN, DIN, GB, JIS, ASME, etc.
Grade	Dx51D, Dx52D, Dx53D, DX54D, S220GD, S250GD, S280GD, S350GD, S450GD, S550GD; SGCC, SGHC, SGCH, SGH340, SGH400, SGH440, SGH490, SGH540, SGCD1, SGCD2, SGCD3, 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), SQ CR40 (275), SQ CR50 (340), SQ CR80 (550); or Customer's Requirement
Thickness	0.12~3.00 mm (cold rolled),1.20~4.60 mm (hot-rolled)
Width	600mm-1500mm or 914mm/1000mm/1200mm/1219mm/1220mm
Tolerance	Thickness: ±0.01 mm
	Width: ±2 mm
Coil ID	508 mm - 610 mm
Coil weight	3 Tons - 8 Tons or as client requirement
Zinc coating	30g/m² - 600g/m²
Spangle	Big spangle,Regular spangle,Mini spangle,Zero spangle
Surface treatment	Oil,Passivation, Chromated, Skin-passed, Anti-finger Print
HS code	72104900.00
Loading Port	Tianjin Port, Qingdao Port, Shanghai Port
Payment Term	L/C or T/T(30% deposit)
Delivery time	Within 15 workdays after deposit received
Package	plastic film + water proof paper + steel plate + packing steel strip
Application	Widely used in road, railway, civil construction, water conservancy  construction; all kinds of machinery, electrical appliances, window protection and aquaculture, etc.

Chemical Component

STEEL GRADE	CHEMICAL COMPOSITION %					MECHANIC PROPERTY			C.B OF	COATING
	C	Si	Mn	S	P	T.S	Y.S	E.L	COATING
	x103	x103	x102	x103	x103	Mpa	Mpa	%	d=0   180°	G/M²
JIS G3302 SGCC	12	30	41	31	21	480	300	13	OK	Z60-150
JIS G3302 SGCH	12	10	21	18	8	680	650	20	OK	Z60-150
ASTM A653 CS.B	29	30	60	35	30	386	250-380	20	OK	Z60-275
DX51D+Z	20	21	18	1.8	11	355	245	38	OK	Z60-275
G550	12	6	73	5	17	715	654	8	OK	Z60-275

Mechanical properties of galvanized steel

Usage	Grade	Yield strength(Mpa)	Tensile strength(Mpa)	Elongation rate %
Punching galvnaized steel	DC51D+Z	-	270-500	≥20
	DC52D+Z	140-300	270-420	≥22
	DC53D+Z	140-260	270-380	≥26
	DC54D+Z	140-220	270-350	≥30
Structure galvanized steel	S220GD+Z	≥220	≥300	≥18
	S250GD+Z	≥250	≥330	≥17
	S280GD+Z	≥280	≥360	≥16
	S320GD+Z	≥320	≥390	≥15
	S350GD+Z	≥350	≥420	≥14
	S400GD+Z	≥400	≥470	-
	S500GD+Z	≥500	≥530	-
	S550GD+Z	≥550	≥560	-

Advantages

1.Available for customized specification on customers' request.

2.Perfect Corrosion Resistance. The service life of galvalume is 3-6times as long as that of galvanized surface.
3.Perfect Processing Performance. Fully meet the requirement of roll processing, stamping, bending, ect.
4.Perfect Light Refelectivity. The ability of reflecting light and heat is twice that of galvanizing.
5.Perfect Heat Resistance. Galvalume products can be used at 315 degree Celsius for a long time without discoloration.
6.Excellent adhesion between the paint. Easy to paint and can be painted without pretreatment and weathering.
Galvanized Steel Coil Types
According to the processing method, we divide galvanized steel into the following categories:
1. Hot-dip Galvanized Steel Coil
As the name implies, hot-dip galvanizing is immersing the cleaned iron sheet into the molten zinc bath at about 500 degrees to form a zinc layer. It is the most commonly used method. It has some advantageous features:
1) The entire steel surface is uniformly covered with a zinc layer, even the corners, hollows, etc. so that the steel sheet is fully protected.
2) The cost of hot-dip galvanizing is cheap.
2. Electro-galvanized Steel Coil
Electro-galvanizing is a process of applying a layer of zinc to steel through electroplating, with a saline anode and steel conductor. It is able to enhance the corrosion and heat resistance of steel. Also, it makes steel sheets more good-looking
Product Display

Packaging And Transportation

Product Test

FAQ:
Q1:Can you send samples?
A:Of course, we can provide customers with free samples and express shipping service to all over of the world.
Q2:What product information do I need to provide?
A:Please kindly provide the grade, width, thickness, surface treatment requirement should you have and quantities you need to purchase.
Q3:It's my first time to import steel products, can you help me with it?
A:Sure,we have agent to arrange the shipment, we will do it together with you.
Q4:What ports of shipment are there?
A:Under normal circumstances, we ship from Shanghai, Tianjin, Qingdao, Ningbo ports, you can specify other ports according to your needs.
Q5:What about product prices information?
A:Prices various according to periodic price changes of raw materials.
Q6:What is your terms of payment ?
A:Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shipment or based on BL copy or LC at sight.
Q7:Do you provide custom made Products service?
A: Yes,if you have your own design , we can produce according to your specification and drawing.
Q8:What are the certifications for your products?
A:We have ISO 9001, MTC, third parties' inspections are all available such SGS, BV ect.
Q9:How long does your delivery time take?
A:In general, our delivery time is within 7-15 days, and may be longer if the quantity is extremely large or special circumstances occur.
Q10: How many countries you already exported to?
A:We have exported to America, Canada, Brazil, Chile, Colombia, Russia, Ukraine, Thailand, Myanmar, Vietnam, India, Kenya, Ghana,somalia and other African countries.Our export experience is rich, we familiar with different market demands, can help customers avoid a lot of trouble.
Q11:Can I go to your factory to visit?
A:Of course, we welcome customers from all over the world to visit our factory.
Q12:Does the product have quality inspection before loading?
A:Of course, all our products are strictly tested for quality before packaging, and unqualified products will be destroyed and customers can appoint third parties to inspect the products before loading too.
Q13:How to pack the products?
A: Standard export sea-worthy packaging, the inner layer has a waterproof paper outer layer with iron packaging and is fixed with a fumigation wooden pallet. It can effectively protect products from corrosion and various climate changes during ocean transportation.
Q14:What is your working time?
A:In general, our online service time is Beijing time: 8:00-22:00, after 22:00, we will reply to your inquiry in the coming working day.