ZAM Coated Steel

ZAM Coated Steel (Zinc-Aluminum-Magnesium coated steel, ZM) is a high-performance alloy coated steel, which is the upgraded version of Aluminum-Zinc Alloy Steel and Galvanized Coated Steel, and is widely used in the fields of building and structure, automotive industry, household appliances, agriculture, machinery, energy, industry, and so on.

ZAM coating

ZAM coating Commonly used composition systems are Zn-6%Al-3%Mg, Zn-1.5%~8%Al-Mg.

• Zinc (Zn): >85%, sacrificial anode protection

• Aluminum (Al): 6-15%, formation of Al₂O₃ oxide film

• Magnesium (Mg): 1-4%, self-repairing ability

• Silicon (Si): trace, inhibit the growth of Fe-Al alloy layer

ZAM Coated Steel Finished Products

We provide ZAM coated steel raw materials and finished product processing services, and offer OEM/ODM services tailored to project requirements or application environments.

ZAM coil: The main form, up to 1250mm in width, cut to length on request for easy transportation and large scale continuous processing (uncoiling, straightening, slitting).

ZAM sheet: ZAM coil is flat and cross-cut, available in standard or customized sizes.

Prepainted ZAM steel: ZAM Coated steel serves as an excellent anti-corrosion substrate and can be coated with various organic coatings.

ZAM corrugated sheet/profile: ZM steel sheets or coils are processed into corrugated sheets, purlins, braces, and other structural members of various cross-sectional shapes by cold-forming units.

ZAM WELDED PIPE: ZM coated steel strip can be used to produce welded pipe fittings.

Properties of ZAM Coated Steel

The mechanical properties of ZAM coated steel are determined by the substrate, and the thickness of the coating material determines the corrosion resistance of the steel. Therefore, when selecting a ZAM steel sheet or coil, it is necessary to determine the required mechanical properties of the substrate and the grade of the coating material, respectively.

Mechanical Properties of the Substrate

ZAM Coating Material Grade

• ZM 60 : Minimum total coating weight 60 g/m² on both sides.

• ZM 80 : Minimum total coating weight 80 g/m² on both sides.

• ZM 100: Minimum total coating weight 100 g/m² on both sides.

• ZM 120: Minimum total coating weight on both sides 120 g/m².

• ZM 150: Minimum total coating weight on both sides 150 g/m².

• ZM 180: Min. total coating weight 180 g/m² on both sides.

• ZM 210: Minimum total coating weight on both sides 210 g/m².

• ZM 250/275: Minimum total coating weight on both sides 250/275 g/m².

ZAM Coated Steel International Standards

• EN 10346,

• ASTM A1046/A1046M,

• JIS G 3323, GB/T 14978

ZAM Coated Steel Advantages

ZAM Coated Steel offers exceptional corrosion resistance, self-repairing capability, excellent cut and machined edge protection, excellent scratch resistance, good coating uniformity and adhesion, excellent chemical resistance and weatherability.

1. Durability: ZAM coating dramatically extends the life of steel in harsh environments, reducing maintenance and replacement costs.

2. Worry-free processing: ZM forms an effective protective layer on cuts, folds and scratches during processing by virtue of its strong self-repairing ability.

3. Lightweight: Under the premise of achieving the same or even better protection life, thinner coatings or thinner substrates can be used (especially beneficial for high-tensile steel), thus realizing weight reduction and cost reduction.

4. Easy to install and transport: The relatively high hardness of ZAM coating reduces the loss of steel during transportation, installation and use.

5. Cost-effective: Initial costs are higher than for GI/GL steel, but its long life, reduced maintenance, lower processing requirements and material usage can reduce long-term costs.

ZAM Coated Steel Applications

ZAM Coated Steel is one of the most popular metal materials for projects in highly corrosive environments and environmentally friendly projects. Zinc aluminummagnesium coated steel coil and sheet are widely used as raw materials in coastal construction, chemical equipment, power pylons, bridge projects, automotive motors, photovoltaic mounts, industrial refrigeration equipment, green buildings, sustainable infrastructure projects and other fields. buildings, sustainable infrastructure projects, etc.

• Roofs, facades, purlins, trusses, garage doors, ventilation ducts for residential and commercial buildings (especially in high humidity, coastal and industrial areas).

• Automobile chassis components (subframes, control arms, brackets), interior structural parts, brake panels, truck panels, etc.

• Refrigerator, washing machine, air conditioner, water heater back plate, shell, internal structural parts.

• Tractor shells, harvester parts, grain bins, agricultural equipment.

• Solar photovoltaic racking system.

• Warehousing and logistics shelves (especially cold storage), bins.

• Electrical cabinets, enclosures.

• Ventilation ducts, outdoor unit housings.

Comparison of ZAM Coated Steel with Other Coatings

Steel coated with a metallic or alloy coating on a cold rolled or hot rolled steel substrate is known as coated steel. The most popular metal coated steels are galvanized coated steel, zinc-aluminum coated steel, and magnesium zinc-aluminum coated steel, which are also hot-selling products of Wanzhi Group.

ZAM Coated Steel VS Stainless Steels

ZAM Coated Steel and Stainless Steel are both suitable for outdoor applications where high corrosion resistance is required. ZAM steel is an ideal alternative to stainless steel for building structures, automotive, photovoltaic mounts, and other applications that are not subject to extreme chemical corrosive environments.

ZAM Coated Steel VS Prepainted Steel

The corrosion protection of Prepainted Steel relies on substrates and coatings, commonly used substrates are GI steel and GL steel. ZAM Coated Steel provides a more submerged, long lasting and reliable foundation for corrosion protection than prepainted galvanized/galvalume steel.