Zinc Coating GI Steel Coil 22 Gauge Z220 Regular Spangle
Electrogalvanizing, commonly known as cold galvanizing, is an electrochemical method. The zinc ingot is used as the anode. After the zinc atom loses electrons, it becomes an ionic state and dissolves into the electrolyte.The steel strip is used as the cathode. Zinc atoms are deposited on the surface of the steel strip, forming a coating.
There is a big difference in the amount of galvanizing between hot-dip galvanized sheet and electro-galvanized sheet. The galvanizing amount of hot-dip galvanizing cannot be too small, generally the minimum is 50-60g/m2 on both sides, and the maximum can reach 600g/m2. The galvanized layer of the electro-galvanized sheet can be very thin, the minimum is 15g/m2, but if the coating is thicker, the production line speed is very slow, which is not suitable for the technological characteristics of modern units, generally the maximum is about 100g/m2. Because of this, the production of electro-galvanized sheet is greatly restricted.
Standard | AISI,ASTM,DIN,JIS,GB,JIS,SUS,EN,etc. | Material | SGCC/ CGCC/ DX51D+Z | | 0.12 ~ 5.00 mm,As Your Request | Width(mm) | 600mm-2200mm, As Your Request Regular width 1000mm, 1250mm, 1500mm | Tolerance | Thickness: ±0.01 mm Width: ±2 mm | Length | 1-12m,as Your Request | Spangle | Big spangle,Regular spangle,Mini spangle,Zero spangle | Zinc Coating | 30g - 275g / m2 | Surface Treatment | Coated,Galvanized,Clean, Blasting and Painting according to customer requirement | Application | Container Plate,Building Construction,Ceilling,Door, Window, Roofing,etc. | |


FAQ
Q:Can you send samples?
A:Of course, we can send samples to all parts of the world, our samples are free, but customers need to bear the courier costs.
Q:What product information do I need to provide?
A:You need to provide the grade, width, thickness, coating and the number of tons you need to purchase.
Q:What are the shipping ports?
A:Under normal circumstances, we ship from Shanghai, Tianjin, Qingdao, Ningbo ports, you can choose other ports according to your needs.
Q:About product prices?
A:Prices vary from period to period due to cyclical changes in the price of raw materials.
Q:What are the certifications for your products?
A:We have ISO 9001, SGS, EWC and other certifications.
Q:How long does your delivery time take?
A:In general, our delivery time is within 30-45 days, and may be delayed if the demand is extremely large or special circumstances occur.
Q:Can I go to your factory to visit?
A:Of course, we welcome customers from all over the world to visit our factory. However, some of the plants are not open to the public.
Q: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.
Q:How to pack the products?
A: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 during ocean transportation.
Q: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 during the next
working day.