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Z225 1.2mm 1250mm Galvanized Steel Coil GI Sheet Coil For Rolling Shutter Door

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Z225 1.2mm 1250mm Galvanized Steel Coil GI Sheet Coil For Rolling Shutter Door

Name: Z225 12mm 1250mm Galvanized Steel Coil GI Sheet Coil For Rolling Shutter Door
Brand: Decho
Price: 650 USD

Quality Z225 1.2mm 1250mm Galvanized Steel Coil GI Sheet Coil For Rolling Shutter Door wholesale

Brand Name : Decho

Model Number : Hot dip galvanised steel

Certification : ISO 9001

Place of Origin : China

MOQ : 16 tons

Price : 650~800USD

Payment Terms : L/C, T/T

Supply Ability : 800 tons/ day

Delivery Time : 30~45days

Packaging Details : Horizontal package With Wooden Pallet

Thickness : 1.2mm

Width : 1250 mm

Surface : matt

Coil ID. : 508mm/ 610mm

Coil Weight : 2 tons~16 tons

Packaging : Horizontal package With Wooden Pallet

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Hot-dip galvanizing is a process of coating steel with a thin zinc layer which used to halt the formation of rust. The surface treatment is done by passing the steel through molten zinc at high temperature.It provides long-term protection for steel products.

The Zinc coating has corrosion resistance and sacrificial corrosion function which delay the production of red rust. The zinc coating of the hot dip galvanized steel is higher than electro-galvanized steel sheet so has better corrosion resistance.

Surface structure of hot dip galvanized steel sheet and coil

Surface structure	Code No.	Features	Application
Conventional spangle	Z	Spangles condensated on zinc coating under normal conditions after galvanizing.	Commercial purposes
Small spangle	X	Surface in spangles smaller than conventional ones and due to controlled condensation of zinc coating.	Applications where conventional spangles cannot meet the surface appearance requirements.
Skin passed spangle	G	Surface structure after special skin pass treatment.	Applications of high surface quality requirements, such as color coating base plates.
Skin passed small spangle	GX	-	-
Zero spangle	N	No visible spangles on coating surface as a result of a special production process.	-
Zn-Fe alloy	R	No spangle, gray, normally matter	Applicable to further painting

Surface treatment of hot dip galvanized steel sheet and coil

Item	Description
Chromate treatment (L)	Chromate treatment is a chemical treatment with an aim to prevent white rusts formed on product surfaces during transportation and storage.
Oiling (Y)	Oiling is to prevent white rusts formed on product surfaces during transportation and storage.
Chromate treatment+ Oiling (LY)	Chromate treatment+ Oiling (LY) This treatment with oiling after surface chromate treatment is to further avoid the forming of white rusts.

JIS G 3302 galvanized steel sheet chemical composition

Grade	Chemical Composition.% Max
Grade	C	Mn	P	S
SGHC	0.15	0.8	0.05	0.05
SGHC400	0.25	1.7	0.2	0.05
SGHC440	0.25	2	0.2	0.05
SGHC490	0.3	2	0.2	0.05
SGHC540	0.3	2.5	0.2	0.05
SGCC	0.15	0.8	0.05	0.05
SGCH	0.18	1.2	0.08	0.05
SGCD1	0.12	0.6	0.04	0.04
SGCD2	0.1	0.45	0.03	0.03
SGCD3	0.08	0.45	0.03	0.03
SGCD4	0.06	0.45	0.03	0.03
SGC340	0.25	1.7	0.2	0.05
SGC400	0.25	1.7	0.2	0.05
SGC440	0.25	2	0.2	0.05
SGC490	0.3	2	0.2	0.05
SGC570	0.3	2.5	0.2	0.05

Features Of Galvanized Steel Door

Well-sealed, Durable and compact
Available in many colors
Economical
Available in various sizes

Z225 1.2mm 1250mm Galvanized Steel Coil GI Sheet Coil For Rolling Shutter Door

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