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Shijiazhuang Weizhengheng Light Steel Color Plate Co., Ltd
Shijiazhuang Weizhengheng Light Steel Color Plate Co., Ltd
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0.28*1000 mm G550 aluzinc coils

0.28*1000 mm G550 aluzinc coils

Place of Origin : China
Brand Name : WZH
Certification : ISO 9001:2008
Model Number : Aluzinc steel coil
galvalume steel coil : metal steel
MOQ : 25 tons
Price : USD 490-690/ton FOB Tianjin
Packaging Details : standard seaworthy package
Delivery Time : 25 days by receipt deposit
Payment Terms : T.T,
Supply Ability : 500 tons per Month
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-HDG: Hot dipped galvanized iron coil and iron sheet price

-GL Coil / Anti-fingerprint GL coil / Aluzinc Steel coil Galvalume Steel coil

1) Introduction of hot dip galvanization steel

Hot-dip galvanization is a form of galvanization. It is the process of coating iron, steel or aluminium with a layer ofzinc by immersing the metal in a bath of molten zinc at a temperature of around 840 °F (449 °C). When exposed to the atmosphere, the pure zinc (Zn) reacts with oxygen (O2) to form zinc oxide (ZnO), which further reacts with carbon dioxide (CO2) to form zinc carbonate (ZnCO3), a usually dull grey, fairly strong material that stops further corrosion in many circumstances, protecting the steel below from the elements. Galvanized / galvalume steel is widely used in applications wherecorrosion resistance is needed without the cost of stainless steel, and can be identified by the crystallization patterning on the surface (often called a "spangle").[1]

Galvanized steel can be welded; however, one must exercise caution around the resulting toxic zinc fumes. Galvanized steel is suitable for high-temperature applications of up to 392 °F (200 °C). The use of galvanized steel at temperatures above this will result in peeling of the zinc at the inter metallic layer. Electrogalvanized sheet steel is often used in automotive manufacturing to enhance the corrosion performance of exterior body panels; this is, however, a completely different process which tends to achieve lower coating thicknesses of zinc.

Like all other corrosion protection systems, galvanizing protects steel by acting as a barrier between steel and the atmosphere. However zinc is a more electronegative metal in comparison to steel, this is a unique characteristic for galvanizing which means that when a galvanized coating is damaged and steel is exposed to the atmosphere, zinc can continue to protect steel through galvanic corrosion(often within an annulus of 5 mm above which electron transfer rate decreases).

2) Specifications

Thickness

0.13mm-0.9mm

Thickness tolerance

±0.02mm

Width

600--1500mm all available

Width tolerance

±5mm

Length

1000-5800mm or as to client require

Zinc coating

40g/m2-120g/m2

Types

Commercial / Drawing / Deep Drawing / Structural quality

Quality

Soft or hard quality

Standard

ASTM, AISI, DIN, GB,JIS

Material

SGCC, DX51D,DX52D, DX53D,SGCD , Q195, Q235, SGHC, DX54D, S350GD, S450GD, S550GD, etc

Spangle State

Regular spangle, small spangle, big spangle, non-spangle

Surface treatment

chromed / oiled/slightly oiled/ dry/ anti-fingerprint etc

Coil weight

3-5ton or as client requirement.

Coil ID:

508 /610mm

Packing

Export standard.

Min order

25 tons

3) Technical Data

-GI Coil/ Price Hot Dipped Galvanized Steel Coil/ zinc corrugated roofing sheet / Iron Sheet price

-GL coil/ASTM A792M Galvalume Steel Coil / Aluzinc iron coil / competitive price galvalume steel sheet in coil

Mechanical Properties

Grade

Yield Strength MPa

Tensile Strength MPa

Elongation %

SGCC(DX51D+AZ)

≥205

≥270

≥22

SGCD(DX52D+AZ)

≥140

≥270

≥38

S250GD+AZ

≥250


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