The difference between galvanized steel and ZAM Zinc-Aluminium-Magnesium coated steel

1. What is ZAM Zinc-Aluminium-Magnesium coated steel sheet?

ZAM Zinc-Aluminium-Magnesium coated steel sheet is a new type of high corrosion- resistance coated steel sheet. Its coating composition is mainly zinc and plus 1.5%-11% aluminum, 1.5%-3% magnesium and little of silicon (This proportions differ from different manufacturers), the thickness range is 0.27-4.0mm,  and the width range that can be produced is: 580mm—1500mm.

Based on the combined effect of these additional elements, the corrosion inhibition effect is highly improved. In addition, it has processing performance under severe conditions (drawing, stamping, bending, paint welding, etc.), the coating has high hardness and excellent damage resistance. Compared with ordinary galvanized and aluzinc products, it has better corrosion resistance. Because of this corrosion resistance, it can be used instead of stainless steel or aluminum in some areas. The anti-corrosion and self-healing effect of the cut end face is a major feature of the product.

2. What are the uses of ZAM Zinc-Aluminium-Magnesium coated steel sheet?

ZAM Zinc-Aluminium-Magnesium coated steel products are widely used, mainly used in civil construction (keel ceilings, perforated plates, cable bridges), agricultural and livestock products (agricultural breeding greenhouses, steel structures, steel components, greenhouses, breeding equipment), railways, roads, and power communications (transmission Power distribution high and low voltage switch cabinets, box-type substation outer bodies), photovoltaic brackets, automotive motors, industrial refrigeration (cooling towers, large outdoor industrial air conditioners) and other industries, the application field is very wide.

3. What are the superior properties of ZAM Zinc-Aluminium-Magnesium coated steel?

1. Corrosion resistance

The magnesium (Mg) component in the coating is beneficial to promote the formation of a very stable and well-structured fine protective film-simonkolleite (Zn 5 (OH) 8 Cl 2 · H 2 O), which generates and maintains a film-like coating on the surface of the coating , Thus exerting excellent corrosion resistance. The corrosion resistance of Galvalume steel and magnesium is 5-12 times that of galvanized steel.

2. High temperature resistance of ZAM Zinc-Aluminium-Magnesium coated steel:

For some parts that require high temperature assembly (350℃), a high temperature resistance test has been carried out. When the ZAM Zinc-Aluminium-Magnesium coated steel is heated to 380℃, the surface still has no melting phenomenon

3. The self-repairing performance of the processed section of the steel plate, the upper plating layer will dissolve and gradually cover the section, which promotes the formation of a stable protective film. In the initial process, red rust occurs on the exposed cut surface, but after the protective film forms a film-like covering on the cut surface, it prevents further corrosion from occurring.

4. Friction resistance has a low coefficient of friction and stable friction characteristics, which is very beneficial to stamping and can reduce the amount of coating wear, thereby reducing the roughness of parts. 4. Good welding performance. The addition of magnesium can reduce welding during laser welding. Spatter of seam attachments to improve welding performance

5. Good welding performance. The addition of magnesium can reduce the spatter of the weld accessories during the laser welding process and improve the welding performance.

6. Good coating performance. The coating performance of ZAM Zinc-Aluminium-Magnesium coated steel is basically the same as that of pure zinc. It can be electrophoresed, post-sprayed and used as a raw material for color coating. Because of its excellent corrosion resistance under the film, it can significantly improve the corrosion resistance of the coated product

7. The easy-to-process plating layer is denser, and it is not easy to peel off during the stamping process. The coating has high hardness and excellent damage resistance

If need coated steel,kindly contact steel export IBC Group through email

Whatssap; 86 13820207107

Fiber reinforced plastic FRP or wood, which one is better ?

What is FRP?

FRP is the abbreviation of fiber reinforced plastic, it is a kind of magical material, which is composed of glass fiber reinforced and external protective coating in an unsaturated polyester resin matrix. FRP material is superior to many traditional materials, such as steel, aluminum, wood, etc., in chemical resistance and corrosion resistance. Its maintenance is simple and the product life is long. It is the best material choice for the construction of chemical storage tanks, piping systems, instruments and other types of industrial process equipment.

FRP is an excellent and powerful alternative to traditional wood materials. Unlike wood, our FRP will not deform or rot due to exposure to moisture. They are resistant to corrosion, insects and bacteria. Most importantly, they don’t require environmentally harmful paints or preservatives to provide superior durability. Compared with wood materials, FRP has many advantages, such as strength, safety, durability and cost.


Wood is inferior to FRP in any aspect, especially strength. FRP is much stronger than wood, and will not shatter due to impact.


Wood does not conduct electricity, this is the only common feature with FRP. Wood will shatter in extreme heat, humidity or dryness. In applications such as water parks and swimming pool areas, this may pose a danger to guests who often walk barefoot. Wood also needs dangerous chemical coatings to resist fungus, mold and rot.

FRP does not need these hazardous chemicals because it is not easily damaged by these things.


Because wood can crack, split or rot, it is often regarded as the least ideal solution to the structure, especially in harsher environments. Wood needs a special coating to prevent moisture and must be repainted every few years. Termites are another external problem. Because of termite damage, wooden bridges may only be used for as little as 3 months.

FRP is more durable than wood and more durable in harsh environments.


Of course, wood is obviously cheaper than FRP, but only at the time of purchase. If you consider installation costs, maintenance, special sealants required, and normal wear and replacement, the cost will be much higher.

The cost of FRP is relatively higher, but in the long run, it saves you a lot of wood and other materials.

Wood can rot, steel is easy to rust, and aluminum is not strong enough. Of course, traditional building materials still have their irreplaceable points. But for harsh corrosive environments, fiber reinforced plastic (FRP) is a wise choice.