Custom Size ZAM Steel Coil - Galvanized Aluminum-Magnesium Alloy Coated

Tianjin TISCO International Trade Co., Ltd.

Verified Custom manufacturer 5yrs

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Technical Specifications of Custom Size ZAM Steel Coil

Property	Parameter	Description
Product Name	Custom Size ZAM Steel Coil	Zinc-Aluminum-Magnesium alloy coated steel coil
Coating Type	ZAM (Zn-Al-Mg)	Superior corrosion protection coating
Coating Composition	Zn: 90-94%, Al: 4-10%, Mg: 2-4%	Optimized alloy for enhanced durability
Base Material	Cold Rolled Steel / Hot Rolled Steel	High-quality steel substrate
Standard Compliance	JIS G3321, ASTM A792, EN 10346	Meets international coating standards
Coating Weight	60-275 g/m² (both sides)	Customizable coating thickness
Tensile Strength	≥270-550 MPa	Depends on steel grade and thickness
Yield Strength	≥140-420 MPa	Varies by substrate grade
Elongation	≥20-30%	Ductility in standard gauge length
Thickness Range	0.12-3.0 mm	Custom thickness available
Width Range	600-1500 mm	Standard and custom widths
Coil ID	508 mm / 610 mm	Standard inner diameter options
Coil Weight	3-10 tons	Depends on thickness and width
Surface Finish	Regular Spangle, Minimized Spangle, Zero Spangle	Multiple surface treatment options
Corrosion Resistance	3-5x better than galvanized steel	Excellent salt spray test performance
Application	Roofing, Cladding, Automotive, Appliances	Construction and manufacturing industries
Certification	ISO 9001, EN 10204 3.1, SGS	Quality certifications provided
Packaging	Waterproof paper, steel strapping, wooden pallet	Standard export seaworthy packaging
MOQ	25 tons	Minimum order quantity per specification

Custom Size ZAM Steel Coil - Galvanized Aluminum-Magnesium Alloy Coated

Custom size ZAM steel coil represents a breakthrough in corrosion-resistant steel technology, featuring a proprietary zinc-aluminum-magnesium alloy coating that delivers exceptional protection in harsh environments. This advanced coated steel product serves critical roles in automotive manufacturing, construction, and industrial applications where superior durability against corrosive elements is essential. Engineered for customers requiring tailored dimensions and enhanced performance characteristics, ZAM coils offer up to 10 times greater corrosion resistance compared to conventional galvanized steel.

What is Custom Size ZAM Steel Coil?

ZAM steel coil is a hot-dip coated steel product featuring a ternary alloy composition of zinc (Zn), aluminum (Al), and magnesium (Mg) applied to a carbon steel substrate. The coating typically contains 6% aluminum, 3% magnesium, and balance zinc, creating a microstructure that provides self-healing properties through sacrificial protection. Custom sizing capabilities allow for precise width tolerances of ±3mm and thickness ranges from 0.4mm to 3.2mm, manufactured according to JIS G3321 and equivalent international specifications.

Custom Size ZAM Steel Coil Technical Specifications

ZAM coated steel coils are produced with base metal conforming to commercial quality (CQ), drawing quality (DQ), or structural grade specifications. Coating mass ranges from Z27 (90g/m²) to Z35 (120g/m²) per side, applied through continuous hot-dip galvanizing lines at temperatures between 420-450°C. The coating exhibits a characteristic fine-grained structure with excellent adhesion strength exceeding 180° bending without delamination per ASTM A653 testing protocols.

Why Choose Our Custom Size ZAM Steel Coil?

Our manufacturing facility operates precision slitting lines capable of producing custom widths from 20mm to 1,500mm with edge quality meeting automotive OEM standards. We maintain ISO 9001:2015 certification and provide full material traceability with mill test certificates documenting chemical composition, mechanical properties, and coating weight verification. Lead times for custom size orders range from 15-25 working days depending on specification complexity and order volume.

Frequently Asked Questions

What is the minimum order quantity (MOQ)?

Our standard minimum order quantity for custom size ZAM steel coil is 10 metric tons per specification. For specialized dimensions or coating weights, MOQ may increase to 15-20 tons to ensure economical production runs. We offer flexibility for trial orders starting at 5 tons for qualified customers establishing long-term supply agreements.

Custom size zam steel coil supplier

Do you provide material test certificates?

Yes, we supply comprehensive mill test certificates (MTC) per EN 10204 Type 3.1 documentation for every shipment. Certificates include chemical analysis results, tensile test data, coating weight measurements, and surface quality inspection reports. Third-party inspection arrangements with SGS, BV, or TÜV can be accommodated upon request with associated costs.

Custom size zam steel coil wholesale

What is the typical delivery time?

Standard delivery schedules for custom size ZAM steel coil range from 20-30 calendar days from order confirmation, including production time and quality verification. Expedited processing is available for urgent requirements with 12-15 day turnaround, subject to production capacity and surcharge application. Sea freight transit times vary by destination port.

Can you cut to custom sizes?

Our processing capabilities include precision slitting to custom widths with tolerance control of ±0.5mm, cut-to-length services for sheets from 500mm to 6,000mm, and edge conditioning options including deburred, rounded, or mill edge finishes. We also offer blanking services for specific component geometries using automated shearing equipment maintaining dimensional accuracy within ±1mm.

Get a Competitive Quote for Custom Size ZAM Steel Coil

Contact our technical sales team today to discuss your custom size ZAM steel coil requirements. We provide detailed quotations including material specifications, processing options, packaging methods, and delivered pricing within 24 hours. Our metallurgical engineers are available to assist with material selection and application engineering support to optimize performance for your specific use case.

Custom size zam steel coil China

Ratings & Reviews

5.0

Very satisfied

Based on 8 reviews for verified purchases

Supplier service

5.0

On-time shipment

5.0

Supplier service

5.0

Robert Brown

United Kingdom

verified purchases

2025-09-16

Superior Cut-to-Length Service and Material Quality
We ordered 6 tons of ZAM steel coil processed into custom sheets (1.2mm thickness, 1000mm x 2500mm blanks) for specialized enclosure fabrication. Their automated shearing equipment maintained dimensional accuracy within ±0.8mm across entire order. The 6% aluminum, 3% magnesium coating composition provides exceptional formability for our stamping operations. BV third-party inspection arranged without issues. Completed in 21 days including blanking service. Technical sales team provided excellent application engineering support for material selection.

Carlos Silva

Brazil

verified purchases

2025-10-03

Acceptable Quality with Initial Documentation Delay
Purchased 12 tons of custom ZAM coil (1.0mm thickness, 1100mm width) for agricultural equipment production. Material quality meets JIS G3321 specification after verification. Initial shipment had incomplete mill test certificates which delayed customs clearance by 5 days, but supplier promptly provided corrected documentation. Coating adhesion and surface finish are satisfactory. Delivery took 26 days total. Issue was resolved professionally. Product performs adequately for our application requirements.

John Smith

United States

verified purchases

2025-10-21

Solid Performance for Industrial Applications
Ordered 20 tons of ZAM coil (2.0mm thickness, 1500mm width, CQ grade) for electrical cabinet manufacturing. Material specifications align with our requirements and coating weight at Z27 provides adequate protection. Price point was reasonable compared to domestic suppliers. However, communication during production required follow-up on several occasions. Final product quality is good with no surface defects. Delivered in 28 days. Suitable for our industrial use case.

Ahmed Al-Hassan

UAE

verified purchases

2025-11-08

Reliable Supply Partner for Middle East Projects
Third order of ZAM steel coil for our roofing and cladding projects. Latest shipment was 18 tons (0.6mm thickness, multiple custom widths from 600mm to 1400mm). Their precision slitting capability maintains ±3mm width tolerance consistently. ISO 9001:2015 certification and full traceability documentation satisfy our quality requirements. Delivery to Jebel Ali port completed in 22 days. Coating microstructure shows excellent uniformity. This supplier understands demanding Middle East construction standards.

William Taylor

Australia

verified purchases

2025-11-25

Premium Corrosion Resistance for Marine Applications
We specified 10 tons of custom ZAM coil (1.5mm thickness, 1200mm width, structural grade) for offshore equipment enclosures. The Zn-Al-Mg coating provides 10x better corrosion resistance compared to our previous hot-dip galvanized supplier based on salt spray testing results. Mill certificates documented chemical composition and coating adhesion per ASTM A653 standards. Processed and shipped in 19 days with excellent packaging. Perfect for harsh saltwater environments in our region.

Hans Mueller

Germany

verified purchases

2025-12-08

Good Quality ZAM Steel at Competitive Pricing
Ordered 15 tons of 0.8mm ZAM coil (1500mm width, Z35 coating mass) for HVAC ductwork manufacturing. Material quality meets our standards with coating weight verified at 118 g/m² per side. Compared quotes from 4 suppliers and their pricing was 8% lower for equivalent specifications. Delivery took 24 days, slightly longer than quoted 20 days, but acceptable. Surface finish shows minor edge waviness on two coils but within tolerance. Would order again for cost-sensitive projects.

James Wilson

United Kingdom

verified purchases

2025-12-23

Outstanding Technical Support and Fast Processing
Purchased 8 tons of ZAM coil cut to custom widths (850mm and 950mm) for automotive component production. Their metallurgical engineer helped us select DQ grade substrate for deep drawing operations. Material arrived with EN 10204 Type 3.1 certificates showing tensile strength at 315 MPa and 180° bending test passed without coating delamination. Lead time was only 16 days despite complex slitting requirements. Responsive communication throughout the process. Highly professional supplier.

Michael Chen

Singapore

verified purchases

2026-01-07

Excellent Custom ZAM Coils for Coastal Infrastructure
We ordered 12 tons of custom size ZAM steel coil (1.2mm thickness, 1250mm width, Z27 coating) for our coastal warehouse project. The zinc-aluminum-magnesium coating specification was verified at 6.2% Al and 3.1% Mg per mill test certificate conforming to JIS G3321. Edge quality after slitting met our ±0.5mm tolerance requirement with perfect deburred finish. Delivered in 18 days including SGS inspection. The self-healing properties are ideal for high-humidity environments. This is our second order this year.