Hot Dipped Galvanized Steel Coils

Promisteel，Hot Dipped Galvanized Steel Coils manufacturer and supplier of China, we provide Hot Dipped Galvanized Steel Coils to overseas buyers at most competitive price with good quality and on-time delivery. And mainly provides 0.12mm to 0.8mm thin galvanized coating, which is used for roofing, home appliances, protective layer of building periphery, etc.

Grade	SGCC/DX51D+Z, DX52D+Z,DX53D+Z
Thickness	0.11-2.0mm
Width	600-1500mm
Coating	Z20-Z275
Hardness	Normal Soft/ Semi Hard/Full Hard
Spangle	Zero Spangle /Regular Spangle/Big Spangle
Coil Inner Diameter	508/610mm
Coil Weight	2-10MT

The table above shows the widest range of product dimensions. For a detailed acceptable order range, please contact Sales & Marketing Division.

Processing line

galvanized 

galvanized coil

galvanized steel

Spangle

Quality Control

Benefits

Corrosion resistance: The zinc layer formed by hot-dip galvanizing can provide excellent corrosion resistance and effectively protect the base metal from oxidation, corrosion and chemical substances in the environment.

Long Life: Hot-dip galvanizing can extend the life of metal products and make them more durable, especially in harsh environments and exposure conditions.

Weather Resistance: The protective layer provided by hot-dip galvanizing helps metal products resist weathering and the effects of climate change.

Versatility: Hot-dip galvanizing is suitable for a variety of metal products, including steel, iron and aluminum. It has a wide range of applications in construction, agriculture, industry and other fields.

Surface treatment

1. Chromated

The chromate passivation treatment of zinc coating can reduce the cracking corrosion (white rust) under the condition of moisture temperature storage and transportation. However, the corrosion resistance of this chemical treatment is limited and hinders the adhesion of most coatings. This kind of treatment is not used in zinc-iron alloy coating. Except for finishing the surface, the production plant passivates other types of zinc coating as a routine.

2. Oiled

Oil coating can reduce the corrosion of steel plates under wet storage and transportation conditions, and the steel plate after passivation and steel strip re-oiling will further reduce the corrosion under wet storage conditions. The oil layer should be removed by a degreasing agent without damaging the zinc layer.

3. Paint coated

An additional corrosion protection, especially fingerprint resistance, can be provided by applying a very thin transparent organic coating film. The lubricity can be improved during molding and used as the adhesive substrate of subsequent coating.

4. Phosphate

Through phosphating treatment, all kinds of galvanized steel plates can be coated without further treatment except for normal cleaning. This treatment can improve the adhesion and corrosion resistance of the coating and reduce the risk of corrosion during storage and transportation. After phosphating, it can be used with suitable lubricants to improve molding performance.

5. No treatment

Only when the ordering party asks for nontreatment and is responsible for it, the steel plate and steel strip supplied according to this standard can be free from surface treatment such as passivation, oil coating, paint sealing, or phosphating.

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