ZAM-coated steel coil with the characteristic smooth silver-gray zinc-aluminum-magnesium alloy surface finish

High corrosion resistance | High scratch resistance | Concrete compatible | Attractive finish

ZAM coated steel featuring zinc, 6% aluminium and 3% magnesium blend for corrosion resistance

ZAM coating is a blend of zinc, aluminium (6%) and magnesium (3%)
that provides far greater corrosion resistance than hot-dip galvanized coatings.

ZAM coated steel is a 21st century material developed by Nisshin Steel of Japan,
a world leader in steel making technology and a major manufacturer of coated
and stainless steel in the Asia-Pacific region.

 

ZAM coated steel advantages

+ New generation coating technology
+ Vastly improved corrosion resistance
+ Suitable for severe environments
+ Faster delivery than post-galvanized steel
+ Replaces need for higher coating weights
+ Raw edge protection
+ Concrete compatible
+ Scratch resistant
+ More economical than post-galvanized steel
+ No reduction in product performance
+ Attractive, satin matt finish

Self-healing performance of ZAM steel

Spray Salt Test for Zn-Al-Mg steel and Galvanized steel, the result shows anti-corrosion of Zn-Al-Mg steel is 4-5 times than that of galvanized ( 24hours SST is equivalently 1 year practical life in neutral environment)

Top 1 advantage for ZAM coated steel is its self-healing performance on the cutting part of profile when appearing red rust. As we know the rusting always start on the cutting part caused by processing or punching profile. However elements of Mg and Zn of Zn-Al-Mg steel will dissolve preferentially and deposit on exposed cut edges. Then stable alkaline zinc chloride is formed in the later stage of corrosion.

For demonstrate this conclusion, Solaracks spent few months to test it and the test results are consistent.

Salt spray test comparison between Zn-Al-Mg coated steel and hot-dip galvanized steel samples

Spray Salt Test for Zn-Al-Mg steel and Galvanized steel, the result shows anti-corrosion of Zn-Al-Mg steel is 4-5 times than that of galvanized ( 24hours SST is equivalently 1 year practical life in neutral environment)

SHOUGANG Zn-Al-Mg coated steel after 1000-hour and 3000-hour salt spray testingCorrosion resistance data showing Zn-Al-Mg steel outperforming galvanized steel by 4-5 times

SST 1000hours                        SST 3000hours

SHOUGANG profile

SHOUGANG hot-rolled Zn-Al-Mg coated steel production profile and specification overview

Shougang Group Co., Ltd., formerly Shougang Corporation is a Chinese state-owned steel company. Top 5 Zn-Mg-Al coated steel manufacturer in the globe.

There are 4 steel groups could produce hot rolled zn-al-mg coated steel beside China. SHOUGANG STEEL as the fifth in the world, also the sole manufacturer that could produce zn-al-mg steel up to 3.0mm thick in China.

SHOUGANG steel production line with 500,000 tons per year hot-rolled Zn-Al-Mg capacity

SHOUGANG owns 2 production lines include hot rolled and cold rolled.

Hot rolled producing line -500,000 tons/year

SOZAMC Zn-Al-Mg steel benefits: 30-year warranty for C1 through C4 corrosion environments

Cold rolled producing line-200,000tons/year

Zn-Al-Mg coated steel cost comparison showing at least 10% savings over hot-dip galvanized

What benefits of SOZAMC?

1. 30 years practical life

Provide 30years warranty for Zn-Al-Mg products in the C1~C4 atmospheric corrosion environment

2. 10% cost saved

At least 10% cost saved compare with hot dipped galvanized steel ,that’s large amount for large scale project.

Less procedures of hot dipped galvanizing and surface treatment will save cost and reduce pollution.

S350GD Zn-Al-Mg steel versus aluminum alloy strength comparison for solar mounting structures

3. High strength

Solaracks supplied Zn-Al-Mg solar mounting structure is made of S350GD steel which has higher yield and tensile strength than aluminum alloy. Perform well withstand wind and snow pressure.

Zero dust and waste gas emission during Zn-Al-Mg steel processing for environmental protection

4. Environmental protection

There is no pollution include dust and waste gas emission during processing it.

5. Application in PV solar mounting system

Solaracks Zn-Al-Mg ground-mount solar structure using S350GD steel with high wind resistanceZn-Al-Mg coated steel mounting system with pollution-free fabrication and no waste gas emission

Perform well withstand wind and snow pressure.

Get an engineered mounting quote for your project.

Share drawings, module layout, site location, wind load, snow load and corrosion environment. Solaracks will recommend the system, material, layout and packing approach.

Request a quote