astm low price dx51d z275 Q235 45# 0.8mm 0.4mm 0.3mm thickness zinc coated hot dipped cold rolled

 hot rolled galvanized steel coil price per kg 

Galvanized steel coil, dipping a sheet of steel into a molten zinc bath so that it adheres to a sheet of zinc on its surface. 
The main use of continuous galvanizing process production, that is, into a roll of steel plate continuous dip in the melting of zinc plating tank made of galvanized steel plate;

Alloyed galvanized steel sheet.

Hot-dip galvanizing is the reaction of molten metal with an iron substrate to produce an alloy layer, thereby combining the
substrate and the plating layer. Hot-dip galvanizing is to pickle iron and steel parts first. In order to remove iron oxide on the surface of iron

and steel parts, after pickling, it is cleaned in an ammonium chloride or zinc chloride aqueous solution or a mixed solution of ammonium

chloride and zinc chloride.And then sent to the hot-dip plating bath. Hot-dip galvanizing has the advantages of uniform coating, strong adhesion and long service life.

1.Surface structure code  / Not just polished

Normal zinc flower N NS   Small zinc flower M MS     Zinc free flower F FS   Zinc ferroalloy ZF ZFS

2.Surface quality code

Ordinary surface FA   Advanced surface FC   Higher surface FB

3.Surface treatment symbol

Passivation C     Unction O        Paint sealant L          Phosphating P         Don't deal with U

Product Features:

Corrosion resistance

High temperature oxidation resistance

Thermal stability

Machinability

our advantage
(1)Quality Zhongxiang steel introduces the advanced testing equipments and builds up a professional scientific research team, strictly control

the quality on each steps of production. including inspection on raw materials entry, product's color analysis during production,T-bend test, impact test, salt-spray test, tensile test and packaging testing on exported products , which ensures its integrated performance such as corrosion resistance, Coating stickiness etc and the safety of transportation.

(2)Service Nowadays, the economic globalization is facilitating international operation, our company go to many countries and regions toparticipate in the steel industry exhibition. our Products sell pretty well not only in domestic market, but also prevails in Europe,such as southeastAsia, Russia, Ukraine, the United States, Ireland, Singapore, Dubai, Colombia and other countries and regions, which has earned the customers trust& compliment and successfully transitioned from home to abroad.

Application areas:

Because galvanized coil has strong corrosion resistance, good surface quality, conducive to deep processing, economic and practical characteristics, 

so it is widely used in construction, household appliances, automobiles, containers, transportation and household industries and other fields. Especially steel structure construction, automobile manufacturing, steel warehouse manufacturing and other industries.