MESCO zinc aluminum magnesium(Zn-Al-Mg) coated steel coil/sheet

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Products

MESCO Advantages

Top 3 ZAM steel suppliers in China.

First supplier that make ZM coating mass to 600g/㎡.

First enterprise that supplied ZAM steel pipe.

MESCO has rich project experience and can provide you with product recommendations.

MESCO has its own inventory of 7,000 to 12,000 tons per month, and the fastest delivery time is within 3 days!

We support deep processing: round pipes, square pipes, drilling, etc. The specifications are complete. Please feel free to contact me!

6 Key Questions About Zinc-Aluminum-Magnesium Steel Coils – Watch the Video to Learn More

Zn-Al-Mg Steel Description

Item	Zn-Al-Mg Coated Steel Coil
Deliver port	Tianjin
Brand Name	MESCO STEEL
Application	Construction, light industry, automobile, etc
Delivery form	Steel Coil/Sheet
Thickness	0.2-8.0MM
Width	600-1500MM
Length	As clients' requests
Certificate	API, CE, ROHS, SNI, BIS, SASO, PVOC, SONCAP, SABS, sirm, tisi, KS, JIS, GS, ISO
Grade	DX51D-DX57D S220GD S250GD S550GD
Coating	ZM40-80-600g/㎡
Processing Service	Bending, Welding, Decoiling, Cutting, Punching
Content	Zn: 90% Al: 3%-11% Mg: 1.5%-3%
Surface Treatment	Chromated/Oiled
Delivery Time	3-15 days
Base material	Cold rolled steel
Coil Weight	5-10 MT
PAYMENT TERM	TT, LC, DA,DP, Western Union

Zn-Al-Mg Steel Performance Characteristics

Grade	YS	TS	Elongation after fracture of the following nominal thickness (mm): a80mm,%, ≥
Grade	MPA	MPA	0.4~0.5	>0.5~0.7	>0.7
DC51D+ZM	-	270~500	18	20	22
DC52D+ZM	140~300	270~420	22	24	26
DC53D+ZM	140~220	270~350	30	32	32
S250GD+ZM	250	330	15	17	19
S280GD+ZM	280	360	14	16	18
S320GD+ZM	320	390	13	15	17
S350GD+ZM	350	420	12	14	16
S390GD+ZM	390~580	460	12	14	16
S420GD+ZM	420~610	480	11	13	15
S450GD+ZM	450~640	510	10	12	14
S550GD+ZM	550	560	-	-	-
HC260LAD+ZM	260~330	350~430	22	24	26
HC340LAD+ZM	340~420	410~510	17	19	21
HC220YD+ZM	220~280	340~420	28	30	32
HCT590X+ZM	330~430	590	16	18	20

Product Characteristics of Zn-Al-Mg Steel

1、Excellent corrosion resistance

Zn-Al-Mg coatingsteel has better corrosion resistance. The increase of Al and Mg content in a certain range makes the corrosion resistance of Zn - Al-Mg coating steel sheet increase several times higher than that of Gl.

2、Good abrasion resistance

With low friction coefficient and stable friction characteristics, it is very favorable for punching. It can reduce the amount of wear on the coating, thereby reducing the part's pulling defects.

3、Good welding performance

The Zn-Al-Mg coating steel has good welding performance. The addition of magnesium can reduce the spatter of the weld attachment in the laser welding process and improve the welding performance.

Application Scenarios

The Karawang 100 Megawatts Photovoltaic Project

Time and Place: 2022 in Indonesia Material: S350GD+ZM275/310 1.5/2.0MM

Al Kharsaa Solar Photovoltaic Power Project

Time and Place: 2021 in Qatar Material: S350/550GD ZM275/310/350 1.5/2.0/3.0MM

200KM Highway Guardrail

Time and Place: 2022 in Ibagué,Colombia Material: S550GD+ZM310 2.5MM

Livestock Farm Building Trusses

Time and Place: 2021 in Murun,Mongolia Material: S550GD+ZM275 2.0MM

KAMAZ Automobile steel sheet for stamping

Time and Place: Long-term supply to Russia Material: DX53D+ZM275 1.0/1.5/2.0MM

Spectrum Hardware

Time and Place: Long-term supply to Xiamen Material: DX51D+ZM80 0.6/0.8/1.0MM

Modern granary

Time and Place:2022 in Algeria Material: S350GD+ZM310 2.0/2.5/3.0MM

TCL Air conditioner outdoor unit

Time and Place: Long-term supply to Guangdong Material: DX51D+ZM275 0.8/1.0MM

FAQ

What is the difference between ZAM steel and Galvalume (GL) steel?

ZAM (Zn-Al-Mg) steel adds magnesium to the classic zinc-aluminum coating. The Mg content refines the coating structure and promotes a self-healing protective layer at cut edges, giving significantly better corrosion resistance than conventional Galvalume, especially in humid, salty or high-condensation environments.

What ZM coating weights does MESCO supply?

MESCO supplies ZM coating from 80 g/m² up to 600 g/m² on both sides, covering grades such as DX51D+ZM, DX53D+ZM, S350GD+ZM and S550GD+ZM. High coating weight ZM310/ZM350/ZM450 is available for heavy-duty structural applications.

Can ZAM steel be cut, bent, welded or roll-formed?

Yes. ZAM steel offers good formability, low friction for stamping and drawing, and good weldability. MESCO also provides deep processing including slitting, cutting, drilling, round pipe and square pipe production to your drawings.

What are the MOQ and delivery time?

Our monthly stock is 7,000–12,000 tons, so trial orders and mixed specifications are welcome. The fastest delivery is within 3 days for stocked specifications. Please send your inquiry for exact MOQ and lead time.