There have two kinds zinc spangles for hot dipped galvanized steels one is regular spangle and another is zero spangle.
Spangle steel sheet.
When spangle is used to define the surface appearance of galvanized steel sheet it includes the typical snowflake like or six fold star pattern that is visible to the unaided eye.
In previous steel making generations galvanized steel sheet used to contain large flowery crystalline patterns of zinc on the surface of the steel known as spangle.
A wide variety of spangle galvanized steel sheet options are available to you such as standard processing service and surface treatment.
The spangle appears as either a snowflake or a six pointed star pattern.
A spangle is the visible aesthetic feature of crystallites on the surface of a galvanized steel sheet.
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It is created by use of trace metals in the molten zinc and by controlling the cooling process of the hot dip zinc coating on the steel.
This is produced on the steel sheet when certain alloying elements are either added to the liquid zinc or available as impurities.
Spangle resembles large hexagonal snowflakes.
Wheeling nippon steel s two state of the art multi pot coating lines provide the capability to produce a wide range of sizes coating weights and steel grades.
The process involves running a sheet plate structural shape or constructed shape into a molten bath of high purity zinc.
Before time due to china technology can not get very clear pure lead in the zinc liquids there is always some spangle on the galvanized steel surface.
The following photograph shows the details of this pattern.
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The dictionary defines spangle as a glittering object.