SECC Galvanized Steel Coil

Electro galvanizing, also known as cold galvanizing in the industry, is the process of forming uniform, dense and well bonded metal or alloy deposition layer on the surface of products by electrolysis.

Electroplated galvanized steel sheet, produced by electroplating method, has good processability. However, the coating is thinner and its corrosion resistance is not as good as that of hot dip galvanized sheet;

Because zinc is not easy to change in dry air, and it can produce a kind of basic zinc carbonate film in humid environment. This kind of film can protect the internal parts from corrosion damage. Even if the zinc layer is damaged by some factors, the combination of zinc and steel will form a micro battery after a period of time, and the steel matrix will be protected as a cathode. The characteristics of zinc plating are summarized as follows

1. Good corrosion resistance, fine and uniform combination, not easy to be corrosive gas or liquid into the interior.

2. Because the zinc layer is relatively pure, it is not easy to be corroded in acid or alkali environment. Effective protection of steel body for a long time.

product name	Galvanized steel sheets/Galvalume steel sheet
Thickness	0.13mm-5.0mm
Width	600mm-1500mm,762mm,914mm,1000mm,1200mm,1219mm,1250mm
zinc coating	40g,60g, 80g, 90,100g, 120g, 140g,180g, 200g, 250g, 275g and so on.
Standard	ASTM, AISI, DIN, GB
Material	SECC
Spangle	zero spangle,regular spangle or normal spangle
surface treatment	chromated and oiled, chromated and non-oiled
Packing	export standard.
Payment	T/T, L/C or DP
min order	25 tons (one 20ft FCL)

Available range of SECC electro-galvanized steel sheets for appliances:

Item		Nominal
Thickness		0.3-3.5
Width		800-1830
Length	Steel plate	1000-6000
	Steel strip	Coil inside diameter 508、610

SECC electro-galvanized coating range and recommended nominal coating weight:

Coating from	Coating type
	Pure zinc coating (single-side) g/m²	Zinc-nickel alloy coating (single-side) g/m²
Uniform thickness	3~90	10~40
Different thickness	3~90, the maximum difference value between both sides is 40.	10~40, the maximum difference value between both sides is 20.
Single side	10~110	10~40
Note: The weight of 50g/m²of pure zinc coating is equal to about 7.1um, and the weight of 50g/m² of zinc-nickel alloy coating is equal to about 6.8um.

 

Coating form	Coating type
	Pure zinc coating (single-side) g/m²	Zinc-nickel alloy coating (single-side) g/m²
Uniform thickness	10/10, 20/20, 30/30, 40/40, 50/50, 70/70, 90/90	10/10, 20/20, 30/30, 40/40
Difference thickness	10/30, 20/40, 30/50, 40/60, 50/70, 60/90	10/20, 15/25, 25/30, 30/40
Single side	10/0, 20/0, 30/0, 40/0, 50/0, 60/0, 70/0, 80/0, 90/0, 100/0, 110/0	10, 15, 20, 25, 30, 40