Spangle Hot Dipped Gi Galvanized Steel Coil From China Factory
Gi steel coil is mainly used in construction, home appliances, automobiles, machinery, electronics, light industry,signage industry etc.Galvanized sheet is mainly used: a large number of galvanized sheet plate used in automobile manufacturing, cooler, construction,ventilation and heating facilities and furniture manufacturing and other fields.
Galvanized become important steel anticorrosion method, not only bacause the zinc can be formed in the steel surface protective layer of dense, but also because of the zinc has the effect of cathodic protection, when the galvanized layer damage, it can still through the cathodic corrosion protection to prevent the iron base.
Hot-dip galvanized coils can be divided into hot-rolled galvanized coils and cold-rolled hot-dip galvanized coils, which are mainly used in construction, home appliances, automobiles, containers, transportation and household industries. Especially steel structure construction, automobile manufacturing, steel silo manufacturing and other industries. Their main features are: strong corrosion resistance, good surface quality, conducive to deep processing, economical and practical, etc.
Galvalume steel coils used galvalume/aluzinc (AZ20 -275gsm) steel coils as the basic raw materail. After pretreatment (the surface of the basic raw materail is cleaned to remove impurities, degreasing, and undergoes composite oxidation and passivation treatment), the surface is coated with PE. SMP, PVDF paint is then baked and solidified. It is more suitable for applications in corrosive and coastal areas.
1 passivation
The galvanized layer is passivated to reduce folding corrosion (white rust) under tidal temperature storage and transportation conditions. However, the anti-corrosion performance of this chemical treatment is limited and, moreover, hinders the adhesion of most paints. This kind of treatment is generally not used in the zinc-iron alloy coating. Except for the smooth surface, as a routine, the manufacturer conducts passivation treatment on other types of zinc coating.
2 oiled
Oiling can reduce steel plate corrosion under wet storage and transportation conditions, and re-oiling steel plates and steel strips after passivation treatment will further reduce corrosion under wet storage conditions. The oil layer should be able to be removed with a degreasing agent that does not damage the zinc layer.
3 paint seal
An additional corrosion protection, especially anti-fingerprint properties, can be provided by applying a very thin film of transparent organic coating. Improves lubricity when forming and acts as an adhesion primer for subsequent coats.
4 Phosphating
Through phosphating treatment, galvanized steel sheets of various coating types can be coated without further treatment except for normal cleaning. This treatment can improve the adhesion and anti-corrosion performance of the coating, and reduce the risk of corrosion during storage and transportation. After phosphating, it can be used with a suitable lubricant to improve the forming performance.
not deal with
The steel plates and strips supplied according to this standard may not be passivated or oiled or painted or phosphating and other surface treatments are required only if the orderer puts forward a request not to be treated and is responsible for it.
| Product name |
Spangle Hot Dipped Gi Galvanized Steel Coil |
| Thickness (mm): |
0.12-3.0 mm (±0.02 mm) |
| Width (mm): |
30-1250 mm (±2 mm) |
| Zinc Coating |
Z 30 g/sm-275 g/sm |
| Spangle |
Zero, Mini, Regular and Big |
| Coil Diameter (mm) |
508,610. |
| Coil Weight(T) |
3-5 tons or As your requirement. |
| Surface Treatment |
Regular & minimum spangle, oiled & dry, chromated, non-skin pass, skin pass. |
| Standard |
GB/T-2518
JIS G 3302
EN 10142/10427
ASTM A 653 |
| Steel Grade |
SGCC
DX51D+Z |
| Quality |
Commercial and structural quality. |
| Packing |
1. Galvanized metal & waterproof paper around the coil.
2. Both ends are covered with disks.
3. Inner and outer protective steel rings on edges.
4. 4*5 metal strapping bands and circumferential bands to make it stable. |
| Port of Shipment |
Qingdao Port, or Tianjin Xingang port , China. |
| Date of Delivery |
Within 15-20 days after we receive deposit or L/C at sight. |
| Payment |
L/C at sight or T/T. |
| Transportation |
Container / bulk ship / Train |
| Supply Ability |
50,000MT per month. |
| MOQ |
Any quantity for regular size. |
| Application |
Making pipes,cold strip-welded pipes,cold-bent shaped-steel,bicycle structures,small-sized press-pieces and household decoration goods,boating |
1.Good durability and long life compared with galvanized steel.
2.Good heat resistance, less discoloration at high temperature than galvanized steel.
3.Good thermal reflectivity.
4.Processability and spraying performance similar to galvanized steel.
5.Good welding performance.
6.Good performance-price ratio, durable performance and extremely competitive price.
1) Produces various specification and models and national standards of galvanized steel coil
2) Using high-quality material and advanced production technology and equipment for processing
3) Applicable to a humid climate and the harsh corrosive enviroment
4) Products has been exported to Europe,North American, middle East, the South East Asia, Africa
| Package |
3 layers of packing, inside is kraft paper, water plastic film is in the middle and ouside GI steel sheet to
be covered by steel strips with lock, with inner coil sleeve . |
| Monthly Output |
25000 tons |
| Remarks |
Insurance is all risks and accept the third party test. |
| Loading Port |
Tianjin/Qingdao Port |
1. Bomis Galvalume steel coil ,has good corrosion resistance. It can balance the protective and repair effects of zinc with the anti-corrosion effect of aluminum, extending the service life of steel sheets.
2. Our Galvalume steel coil has relatively good heat resistance and will not change color when exposed to temperatures of around 316 degrees for a long time. It still has good antioxidant properties at a temperature of 677 degrees.
Quality first: production and inspection in strict accordance with production standards;
Price advantage: discounts based on real market prices;
Transaction security: There will be no loss of customer funds;
After-sales guarantee: the customer's problem is our problem;
Long-term cooperation: quality assurance, price advantage, sincere service can last for a long time.
Color steel coil is a kind of composite material, also known as color coated steel plate. It is made of strip steel after continuous surface degreasing and phosphating and other chemical transfer treatments on the production line, and then coated with organic paint and baked.
Substrate Type
1.Hot-dip galvanized color coated steel sheet(pre-painted galvanized steel sheet)
The product obtained by coating an organic coating on a hot-dip galvanized steel sheet is a hot-dip galvanized color-coated plate.
In addition to the protective effect of zinc, the hot-dip galvanized color-coated sheet also protects against rust and has a
longer service life than hot-dip galvanized sheet;
2.Hot-dip aluminum-zinc color coated sheet(pre-painted gavanized steel sheet) Hot-dip aluminum-zinc steel sheets can also be used as color-coated substrates (55% AI-Zn and 5% AI-Zn);
3.Electroplated zinc color coated sheet
The electro-galvanized sheet is used as the substrate, and the product obtained by baking with the organic coating is an
electro-galvanized color-coated plate. It has a beautiful appearance and excellent processing properties, and therefore can be mainly used for home appliances, audio, steel furniture, interior decoration, and the like.
Coating Type
Polyester (PE): Good adhesion, rich colors, wide range in formability and outdoor durability, medium chemical resistance, and low cost.
Silicon modified polyester(SMP): Good abrasion resistance and heat resistance, as well as good external durability and chalking resistance, gloss retention, general flexibility, and medium cost.
High Durability Polyester(HDP): Excellent color retention and anti-ultraviolet performance, excellent outdoor durability and
anti-pulverization, good paint film adhesion, rich color, excellent cost performance.
Polyvinylidene Fluoride(PVDF): Excellent color retention and UV resistance, excellent outdoor durability and chalking resistance, excellent solvent resistance, good moldability, stain resistance, limited color, and high cost.
There are many factors affecting the size of zinc flowers. When the zinc liquid composition has the conditions for the formation of zinc flowers, the following factors will affect the size of zinc flowers:
(1) Raw material: the thicker the raw material steel plate, the smaller the surface roughness, the larger the zinc flower.
(2) Cooling rate: the faster the cooling rate, the shorter the crystal growth time, the smaller the zinc flower.
(3) Number of crystal nuclei: The size of zinc flower is closely related to the number of crystal nuclei of zinc flower. When the surface of steel base is rough or the surface cleanliness is poor, the zinc flower is relatively small. Zinc grains are formed on steel base, and the more nuclei there are, the smaller the zinc flowers will be. This principle is used in the production process of small zinc flowers.
(4) Other factors (production environment, etc.).
It is a product made of hot-dip galvanized steel sheet, hot-dip galvalume steel sheet, electro galvanized steel sheet, etc. After surface pretreatment, one or several layers of organic coating are applied on the surface, and then baked and solidified.
Q:What kind of work does your company do?
A:Our company is a professiona trade company..
We mainly produces stainless steel plate/pipe/coil/round bars,as well as aluminum plate/pipe/coil/bar
Q:What are the advantages of your company?
A:
(1): Prime quality and reasonable price.
(2): Wide excellent experiences with after-sale service.
(3): Every process will be checked by responsible QC which insures every product's quality.
(4): Professional packing teams which keep every packing safely.
(5): Trial order can be done in one week.
(6): Samples can be provided as your requirements.
Q:What about your price?
A:Our price is very competitive because we are a factory.
Pls feel free to contact us if you are interested in our products.
Q:How long is your delivery time?
A:Different products have different delivery time.The products will be delivered as soon as possible on the basis of the quality assurance.Usually the delivery time is within5 days after we received your deposit.
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