DX51D SGCC Coating Cold Rolled Galvanized Steel Coil

0.12-0.5 mm Steel Coil for Roofing coil are mainly used in building, transport, home appliances, solar energy, furniture. 0.12-0.5 mm prepainted coated steel coil especially in home appliances.0.12-0.5 mm steel coil are mainly used as the air conditioners, freezers. Using 0.12-0.5 mm Galvanized Steel Coils or prepainted coils as the substrate, prepainted coated coil is made by first going through surface pretreatment, then coating for one or more layers, and funally baking and cooling.

Galvanization is the leading method to protect metals from environmental elements that cause corrosion, rust, and the eventual weakening of the steel. Hot-dip galvanizing deposits a thick, robust layer of zinc iron alloys on the surface of a steel item.When exposed to the atmosphere, pure zinc reacts with oxygen to form zinc oxide which further reacts with carbon dioxide to form zinc carbonate. A dull, grey, fairly strong material that stops further corrosion in most circumstances, protecting the steel from the elements. Galvanized steel is widely used in applications where rust resistance is needed. Galvanized steel is commonly used in the automotive industry to enhance the corrosion performance of exterior body parts. Galvanized Steel is magnetic.

Product Specification

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 composition

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 galvanized 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	-

Product Display

We can produce different sizes, thicknesses, widths and materials according to your requirements

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.

Surface Structure

Quality Inspection

(1) During and after production, 4 QC personnel with more than 5 years of experience randomly inspect the products.

(2) National accredited laboratory with CNAS certificate.

(3) Accept inspection from a third party designated/paid by the buyer, such as SGS, BV.

(4) Recognized by customers in Malaysia, Indonesia, Singapore, the Philippines, Australia, Peru and the United Kingdom. We have ISO9001/18001, CE certificates.

Packaging And Transportation

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: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.

Q4:Do you provide custom made Products service?

A: Yes,if you have your own design , we can produce according to your specification and drawing.

Q5:What are the certifications for your products?

A:We have ISO 9001, MTC, third parties’ inspections are all available such SGS, BV ect.

Q6: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.

Q7: 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.

Q8:Can I go to your factory to visit?

A:Of course, we welcome customers from all over the world to visit our factory.

Q9: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.

Q10: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.

Q11:What is your working time?

A:In general, When you first contacted us, 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. Business in progress, we will be online 24 hours for you.