Galvanized ZAM Steel Coil - Zinc-Aluminum-Magnesium Coated Cold Rolled Steel Coil

Tianjin TISCO International Trade Co., Ltd.

Verified Custom manufacturer 5yrs

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Technical Specifications of Galvanized ZAM Steel Coil

Property	Parameter	Description
Product Name	Galvanized ZAM Steel Coil	Zinc-Aluminum-Magnesium alloy coated steel with superior corrosion resistance
Coating Type	ZAM (Zn-Al-Mg Alloy)	Zinc 90% + Aluminum 6% + Magnesium 3% + Silicon 1%
Coating Weight	60-275 g/m²	Single side or double side coating options
Base Material	Cold Rolled Steel / Hot Rolled Steel	High-quality carbon steel substrate
Standard Compliance	JIS G3321, ASTM A792M, EN 10346	Meets international ZAM coating standards
Thickness Range	0.12 - 3.0 mm	Available thickness options for various applications
Width Range	600 - 1500 mm	Standard and custom widths available
Tensile Strength	270-550 MPa	Depends on base material grade
Yield Strength	≥140-420 MPa	Varies by steel grade specification
Elongation	≥20%	Ductility in standard gauge length
Corrosion Resistance	10-20x vs GI	Superior to traditional galvanized steel
Surface Treatment	Chromate-free, Oiled, Dry	Environmentally friendly surface options
Spangle Type	Regular Spangle / Minimized Spangle / Zero Spangle	Multiple surface finish options
Coil ID	508mm / 610mm	Standard inner diameter options
Application	Roofing, Automotive, HVAC, Construction	Suitable for outdoor and high-corrosion environments
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

Galvanized ZAM Steel Coil - Zinc-Aluminum-Magnesium Coated Cold Rolled Steel Coil

Galvanized ZAM steel coil represents a breakthrough in corrosion-resistant steel technology, combining zinc, aluminum, and magnesium alloy coating on cold-rolled substrate. This advanced metallic-coated steel product delivers exceptional durability in harsh environments, making it the preferred choice for construction, automotive, and industrial applications requiring superior anti-corrosion properties. Engineered for manufacturers seeking cost-effective alternatives to traditional hot-dip galvanized materials, ZAM coil offers extended service life with reduced maintenance requirements.

What is Galvanized ZAM Steel Coil?

Galvanized ZAM steel coil is a cold-rolled steel product featuring a triple-layer metallic coating composed of zinc (Zn), aluminum (Al), and magnesium (Mg). The typical coating composition contains 6% aluminum, 3% magnesium, with the balance being zinc, applied through continuous hot-dip galvanizing process. This innovative coating system provides 10-20 times greater corrosion resistance compared to conventional galvanized steel, particularly in coastal and industrial atmospheres.

Galvanized zam steel coil supplier

Galvanized ZAM Steel Coil Technical Specifications

Standard ZAM coil specifications include substrate thickness ranging from 0.30mm to 3.00mm, coating mass between 90-275 g/m² per side, and coil width up to 1,500mm. The base material conforms to JIS G3302 or equivalent standards, with tensile strength of 270-550 MPa depending on grade. Coating adhesion meets minimum requirements of 180-degree bend test without flaking, while surface treatment options include chromate-free passivation and oil coating for enhanced formability.

Galvanized zam steel coil manufacturer

Why Choose Our Galvanized ZAM Steel Coil

Our manufacturing facility operates continuous galvanizing lines with precise coating weight control within ±10 g/m² tolerance. We maintain ISO 9001:2015 certification and provide full material traceability with mill test certificates per EN 10204 3.1. Our ZAM coil inventory includes various coating designations (Z90, Z120, Z180, Z275) with lead times of 15-25 days for standard specifications. Technical support includes forming simulation and corrosion testing services to optimize your application performance.

Frequently Asked Questions

What is the minimum order quantity (MOQ)?

Our standard MOQ for galvanized ZAM steel coil is 25 metric tons per specification. For trial orders or prototype development, we accommodate reduced quantities of 5-10 tons with adjusted pricing. Mixed container loading is available for customers requiring multiple thickness or width combinations, subject to minimum 3-ton quantity per item.

Galvanized zam steel coil China

Do you provide material test certificates?

Yes, we supply comprehensive mill test certificates (MTC) complying with EN 10204 Type 3.1 for every shipment. Documentation includes chemical composition analysis, mechanical properties verification, coating weight measurement, and surface quality inspection results. Additional third-party testing through SGS or TÜV can be arranged upon request with 5-7 days additional processing time.

What is the typical delivery time?

Standard delivery schedule for galvanized ZAM steel coil ranges from 20-30 days after order confirmation for stock specifications. Custom coating weights or non-standard widths require 35-45 days production lead time. Express processing is available for urgent requirements with 15-day delivery for surcharge of 8-12% depending on order volume and destination port.

Can you cut to custom sizes?

Our processing center offers precision slitting services to custom widths with ±0.5mm tolerance and cut-to-length processing for sheets ranging from 1,000mm to 6,000mm length. Blanking and shearing services accommodate complex geometries with CNC cutting equipment. Custom processing adds 7-10 days to standard delivery time, with minimum processing quantity of 3 tons per specification to optimize equipment setup efficiency.

Get a Competitive Quote for Galvanized ZAM Steel Coil

Contact our technical sales team today to receive mill-direct pricing for galvanized ZAM steel coil tailored to your project requirements. We provide detailed quotations including coating specification recommendations, packaging options, and logistics solutions within 24 hours. Request your free sample kit with corrosion test data and forming guidelines to evaluate ZAM coil performance for your specific application environment.

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

Chris Martin

Canada

verified purchases

2025-09-10

Premium ZAM Coils for Roofing Systems
We sourced 30 tons of ZAM steel coil (0.5mm thickness, Z180 coating) for metal roofing profiles. This is our fourth order over 18 months. Material consistency is excellent batch-to-batch. Coating provides superior edge protection during roll forming compared to conventional galvanized. Express processing reduced lead time to 16 days for urgent project. ISO 9001 certification and full traceability documentation meets our procurement requirements. Technical data sheets very comprehensive for end-customer presentations.

Wei Chen

Singapore

verified purchases

2025-09-28

Acceptable Quality with Initial Documentation Delay
Ordered 10 tons of 0.7mm ZAM coil (Z90 coating) for electrical cabinet manufacturing. Material quality meets specifications after resolution. Initial shipment arrived without proper mill test certificates, causing 4-day customs delay. Supplier expedited documents and provided compensation for demurrage charges. Product performance in tropical humidity is satisfactory. Communication improved significantly after first order. Coating adhesion passes our internal quality tests.

Carlos Silva

Brazil

verified purchases

2025-10-15

Reliable Material for Agricultural Equipment
Purchased 15 tons of 0.9mm ZAM coil with Z120 coating for grain silo components. Material quality is solid with good forming characteristics. Packaging was adequate though one coil had minor edge damage during shipping, resolved with 5% credit. Coating provides excellent protection against fertilizer corrosion. Lead time was 26 days as promised. Would recommend for agricultural applications requiring long-term durability.

William Taylor

Australia

verified purchases

2025-11-02

Perfect for Harsh Coastal Applications
We ordered 20 tons of ZAM steel coil (1.0mm, Z180 coating, 1500mm width) for boat trailer manufacturing. After salt spray testing per ASTM B117, material showed 15 times better performance than hot-dip galvanized. Coating uniformity excellent across entire coil length. Delivered in 19 days with SGS third-party inspection report. Price was 18% higher than standard galvanized but extended service life justifies investment. Now specifying ZAM for all marine projects.

Hans Mueller

Germany

verified purchases

2025-11-20

Outstanding Technical Support and Product Quality
Purchased 8 tons of 1.5mm ZAM coil with Z275 heavy coating for industrial equipment enclosures. Supplier provided comprehensive corrosion testing data and forming simulation before order. Material arrived with chromate-free passivation as specified. Surface finish allows excellent powder coating adhesion. Technical sales team responded within 12 hours to all our engineering questions. Cut-to-length processing to 2400mm sheets was executed with high precision.

Ahmed Al-Hassan

UAE

verified purchases

2025-12-08

Good Value ZAM Material for HVAC Ducts
Ordered 12 tons of 0.6mm ZAM coil (Z90 coating) for air conditioning duct fabrication. Material quality meets JIS G3302 standards with proper mill certificates. Coating weight measured slightly lower at 88 g/m² on one coil but supplier quickly replaced it. Price was competitive compared to local distributors. Delivery took 28 days, acceptable for our project timeline. Formability is good for duct bending operations.

Michael Johnson

United States

verified purchases

2025-12-23

Superior Quality ZAM Coils for Automotive Parts
We purchased 25 tons of 0.8mm ZAM steel coil with Z120 coating for automotive component manufacturing. Tensile strength measured at 340 MPa, perfectly matching our stamping requirements. Surface quality was outstanding with uniform spangle pattern. Compared quotes from 4 suppliers, this offered best combination of quality and lead time. Slitting service to custom 450mm width was precise within 0.3mm tolerance. This is our second order in 3 months.

James Wilson

United Kingdom

verified purchases

2026-01-07

Excellent Corrosion Resistance for Marine Structures
Ordered 18 tons of ZAM coil (1.2mm thickness, Z180 coating, 1250mm width) for our seaside warehouse project. Material certificates confirmed 6% Al, 3% Mg composition per specification. After 6 months exposure testing in coastal environment, zero rust formation compared to standard galvanized. Coating adhesion passed 180-degree bend test perfectly. Delivery completed in 22 days with full EN 10204 3.1 documentation. Technical team provided excellent forming guidelines.