Tianjin Haigang Steel Coil

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25

2021

-

11

Comparison of Common Galvanized Performance


Coating types

Hot-dip galvanizing

Hot-dip aluminum-zinc-silicon coating

Hot-dip galvanizing ( 5% Aluminum )

Hot-dip aluminizing

Melting point / Celsius

419.5

499-580

382

600

Plating solution temperature / Celsius

455-470

600-650

420-450

650

Strip steel entering the furnace temperature / Celsius

Higher than the plating solution 10-60

Lower than the plating solution 20-50

Higher than the plating solution 10-50

650

Coating Thickness Control

60-600

30-180

60-600

60-200

Corrosion resistance of the coating

Alkaline medium

Acidic medium

Alkaline medium

Acidic medium

Coating density

7.10

3.69

6.60

2.78

Heat resistance

Poorer

Good

Poorer

Best

Market share

Maximum

Larger

Minimum

Smaller

Hot-dip galvanized strip steel