AM Metals | Supply of High Quality Metal Products

Galvanized Iron

Am Metals | Supply of High Quality Metal Products | Ferrous And Non Ferrous Metal Products |Galvanized Steel Coil

INTRODUCTION: GALVANIZED STEEL IRON COIL AND SHEET

Galvanized sheet or coil is a process by which zinc, a non-corrosive metal, is coated over corrosive metals, such as iron and steel. Because zinc is more reactive than iron or steel, the zinc galvanized coating corrodes first, protecting the steel or iron substratum. When  exposed to the atmosphere, zinc reacts with oxygen to form zinc oxide. This further reacts with carbon dioxide to form zinc carbonate, a fairly strong material that stops further corrosion by protecting the steel or iron from the elements.

Galvanized steel is widely used in applications where rust resistance is needed, such as roofing and walling, handrails, consumer appliances and automotive body parts.

SPECIFICATIONS OF GALVANIZED STEEL IRON COIL

Type

JIS G3302, ASTM A653M, EN10142

Weight

According to customer’s requirement

Thickness Range

Thickness Range

Inside Diameter

508mm / 610mm

Standard Width

914mm / 1000mm / 1219mm / 1250mm
(Special width can be available upon request)

Grade

  • SGCH (Hard Quality)
  • SGCC (Commercial Quality) Annealed

Zinc Coating Mass

Refer Table 1

Zinc Mass

Mass Weight
g/m²

JIS
G3302

ASTM

EN 10142

BS 2989

AS 1397

A653

A653M

60

Z06

80

Z08

100

Z10

Z100

Z100

Z100

120

Z12

G40

Z120

140

Z140

180

Z18

G60

Z180

Z200

Z200

200

Z20

Z200

220

Z22

G70

225

Z225

250

Z25

275

Z27

G90

Z275

Z275

Z275

Z275

350

Z35

G115

Z350

Z350

Z350

Z350

430

G140

Z450

Z450

Z450

SURFACE CONDITION

Zero

More minimized spangles than regular, with a beautiful gloss, suited for general painting applications

Ultra

Extremely minimized spangles suited for special painting applications

Regular

Standard spangles with flower pattern, suited for general use

Alloy coated iron-zinc

Galvannealed steel sheet has a highly workable iron-zinc alloy layer. Good paint-adherence properties, corrosion resistance and weldability make them ideal for use in home electrical appliances and buildings

 

SURFACE TREATMENT

Surface Treatment

  • Chromated
  • Chromated & oiled
  • Non- chromated but oiled

APPLICATION of Galvanized Iron

Galvanized Sheets are used extensively in various applications. Some of the common uses are: