Color Coated Galvanized Steel Coil - Hot-Dipped Z275 Z600 for Construction & Appliances

Tianjin TISCO International Trade Co., Ltd.

Verified Custom manufacturer 5yrs

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Color coated galvanized steel coil image

Technical Specifications of Color Coated Galvanized Steel Coil

Property	Parameter	Description
Product Name	Color Coated Galvanized Steel Coil	Pre-painted galvanized steel with organic coating
Base Material	Galvanized Steel (GI) / Galvalume (GL)	Hot-dip galvanized or aluminum-zinc coated substrate
Standard Compliance	ASTM A755, EN 10169, JIS G3312	Meets major international standards
Coating Type	Polyester (PE), Silicon Modified Polyester (SMP), PVDF, HDP	Multiple coating options for different applications
Zinc Coating	40-275 g/m²	Zinc layer thickness for corrosion protection
Top Coating Thickness	15-25 μm	Organic coating layer on surface
Back Coating Thickness	5-10 μm	Protective coating on reverse side
Thickness Range	0.13 - 1.5 mm	Available thickness options
Width Range	600 - 1500 mm	Standard and custom widths
Coil ID	508mm / 610mm	Inner diameter options
Coil Weight	3-8 tons	Standard coil weight range
Tensile Strength	≥270 MPa	Minimum tensile strength per ASTM A755
Yield Strength	≥140 MPa	Minimum yield strength
Elongation	≥20%	Ductility measurement
Color Options	RAL colors, custom colors available	Wide range of color selections
Surface Finish	Glossy, Matte, Textured	Multiple surface treatment options
Application	Roofing, Wall Cladding, Appliances, Furniture	Typical application industries
Certification	ISO 9001, SGS, EN 10204 3.1	Quality certifications provided
Packaging	Waterproof paper, steel strapping, wooden pallet	Standard export packaging
MOQ	25 tons	Minimum order quantity

Color Coated Galvanized Steel Coil - Hot-Dipped Z275 Z600 for Construction & Appliances

Color coated galvanized steel coil represents a premium-grade flat-rolled steel product that combines the corrosion resistance of zinc coating with the aesthetic versatility of organic paint layers. Manufactured through a continuous hot-dip galvanizing process followed by precision color coating, this material serves critical roles in architectural cladding, roofing systems, household appliances, and industrial enclosures. Engineered for customers demanding both structural durability and visual appeal, these coils deliver exceptional performance in environments requiring weather resistance, formability, and long-term color retention.

Color coated galvanized steel coil supplier

What is Color Coated Galvanized Steel Coil?

Color coated galvanized steel coil is a pre-painted steel product featuring a hot-dipped zinc coating (typically Z275 or Z600 grade per ASTM A653) as the metallic substrate, topped with chromate conversion treatment and multiple organic coating layers. The zinc coating provides sacrificial corrosion protection, while the topcoat system—commonly polyester, silicon-modified polyester (SMP), or polyvinylidene fluoride (PVDF)—delivers UV stability, chemical resistance, and decorative finish. Standard dimensions range from 0.35mm to 1.2mm thickness with coil widths of 914mm to 1250mm.

Color Coated Galvanized Steel Coil Technical Specifications

Base material conforms to ASTM A653/A653M structural quality with minimum yield strength of 275 MPa for Grade 50. Zinc coating weight meets Z275 (275 g/m² total both sides) or Z600 specification per ASTM A924. Organic coating thickness ranges from 15-25 microns topcoat with 5-8 microns backing, applied via roller coating technology. Color options include RAL/Pantone standards with ΔE color difference ≤2.0 per batch. Pencil hardness achieves ≥HB grade per ASTM D3363, while T-bend test demonstrates 0T to 2T formability depending on coating system.

Why Choose Our Color Coated Galvanized Steel Coil

Our manufacturing facility operates a state-of-the-art continuous galvanizing line with integrated color coating section, ensuring superior coating adhesion through chromate-free pretreatment systems. We maintain ISO 9001:2015 certification and conduct real-time quality monitoring including zinc layer thickness measurement via X-ray fluorescence and coating weight verification per ASTM A924 Annex A1. Mill-direct pricing eliminates intermediary costs while our technical team provides customized solutions for project-specific requirements including special colors, embossed textures, and anti-fingerprint treatments.

Frequently Asked Questions

What is the minimum order quantity (MOQ)?

Standard MOQ is 25 metric tons per specification, equivalent to approximately one full container load. For established clients with ongoing requirements, we offer flexible MOQ of 10 tons with consolidated shipping arrangements. Custom color orders require 50-ton minimum due to coating line setup requirements and color matching protocols.

Do you provide material test certificates?

Yes, each shipment includes EN 10204 Type 3.1 mill test certificates documenting chemical composition per ASTM E1019, mechanical properties per ASTM A370, zinc coating weight per ASTM A90, and coating thickness verification. Additional testing reports available upon request include salt spray resistance per ASTM B117 (minimum 500 hours), adhesion testing per ASTM D3359, and color measurement per ASTM D2244.

What is the typical delivery time?

Standard color inventory in high-demand RAL shades ships within 15-20 days from deposit confirmation. Custom color orders require 30-35 days production lead time to accommodate color matching, trial coating runs, and quality approval procedures. Express production available for urgent projects with 10-day expedited processing upon request, subject to production schedule availability and premium charges.

Color coated galvanized steel coil wholesale

Can you cut to custom sizes?

Our precision slitting line accommodates custom widths from 100mm to 1250mm with tolerance of ±2mm per ASTM A924. Cut-to-length service provides sheets from 1000mm to 6000mm length with squareness tolerance ≤3mm per 1000mm. Edge trimming options include mill edge, slit edge, or deburred edge depending on application requirements. Minimum processing quantity applies for non-standard dimensions.

Get a Competitive Quote for Color Coated Galvanized Steel Coil

Contact our technical sales team today to receive factory-competitive pricing tailored to your project specifications. We provide comprehensive support including material selection guidance, coating system recommendations, and logistics coordination for international shipments. Request your detailed quotation with complete technical documentation and delivery timeline by reaching out through our online inquiry form or direct phone consultation with our metallurgical specialists.

Color coated galvanized 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

William Taylor

Australia

verified purchases

2025-09-09

Premium Z600 Performance for Coastal Infrastructure
Specified 24 tons of Z600 PVDF coated coils (0.6mm thickness, custom grey RAL 7035) for marine terminal equipment housings. Material exceeded AS 1397 Australian standards with 650 g/m² zinc coating weight. PVDF topcoat system demonstrated superior chalk resistance in our 2000-hour QUV accelerated weathering test. T-bend formability at 0T with no coating fracture. Supplier provided complete traceability documentation including steel mill heat numbers and coating batch records. Express production delivered in 28 days for our tight project schedule. Third repeat order confirms consistent quality.

Carlos Silva

Brazil

verified purchases

2025-09-27

Acceptable Quality with Initial Shipping Delay Resolved
Purchased 12 tons of Z275 color coated coils (0.48mm, RAL 8017) for metal roofing distribution. Initial shipment was delayed 8 days due to container shortage at origin port, but supplier maintained communication and arranged air freight for 2-ton urgent portion at no extra charge. Material quality meets basic ASTM A653 standards. Zinc coating weight at 278 g/m² and coating adhesion acceptable. Color match was slightly off with ΔE 2.3, within tolerance but not ideal. Price competitive for South American market. Supplier resolved issues professionally.

Robert Brown

United Kingdom

verified purchases

2025-10-14

Reliable Quality for Agricultural Building Cladding
Ordered 16 tons of Z275 coated steel (0.5mm, RAL 6005 green) for farm building projects. Coating thickness measured 20 microns topcoat as specified. Material certificates confirmed ASTM A653 compliance with carbon content at 0.04%. Delivery completed in 19 days. Formability was good at 2T bend radius for our roll-forming equipment. One coil had minor surface scratches affecting about 3 meters, but supplier provided credit adjustment promptly. Overall solid product for standard construction applications at fair market pricing.

Ahmed Al-Hassan

UAE

verified purchases

2025-11-02

Perfect Heat Reflective Coating for Desert Climate
Purchased 31 tons of light-colored Z275 coils (RAL 9002, 0.55mm thickness) for commercial building facades in Dubai. The silicon-modified polyester coating withstands our extreme temperatures of 50°C without color fading. Solar reflectance index measured at 82, significantly reducing cooling loads. Material arrived in 17 days via Jebel Ali port with proper humidity-controlled packaging. Slitting accuracy was excellent at 1220mm width with clean deburred edges. Compared quotes from 5 suppliers - best combination of quality and competitive pricing.

Hans Mueller

Germany

verified purchases

2025-11-20

Outstanding Technical Support for Custom Color Matching
Required 18 tons of custom Pantone 2728C blue for industrial equipment enclosures (0.7mm, Z600 coating). Technical team provided 3 color samples with spectrophotometer data before production. Final batch achieved ΔE 1.8 color difference, meeting our strict corporate branding standards. SMP coating system demonstrated excellent UV stability in accelerated weathering tests. Cut-to-length service delivered 2400mm sheets with ±1.5mm squareness tolerance. Comprehensive material certificates included chemical composition and mechanical properties per DIN standards.

Wei Chen

Singapore

verified purchases

2025-12-08

Good Value Z275 Coils for Warehouse Roofing
Ordered 22 tons of standard RAL 3009 color coated coils (0.6mm thickness) for industrial warehouse roofing. Material quality meets ASTM A653 Grade 50 specifications with yield strength at 282 MPa. Zinc coating weight verified at 283 g/m² total. Delivery took 21 days, slightly longer than the 15-day estimate but acceptable. Price was 8% lower than local competitors. Minor edge waviness on 2 coils but within tolerance. Would order again for cost-sensitive projects.

Michael Johnson

United States

verified purchases

2025-12-23

Superior Surface Finish for Refrigerator Panels
We purchased 35 tons of Z275 coated steel (0.45mm, 1219mm width, RAL 9016 white) for refrigerator door production. The anti-fingerprint treatment works exceptionally well in our assembly line. Pencil hardness tested at H grade, better than specified HB minimum. Coating adhesion passed 5B per ASTM D3359 with no delamination during our deep-draw stamping process. Technical team provided custom embossed texture samples within 5 days. This is our 4th consecutive order.

James Wilson

United Kingdom

verified purchases

2026-01-07

Excellent Z600 Coating Performance for Seaside Project
Ordered 28 tons of Z600 color coated coils (0.5mm thickness, RAL 5012) for a coastal residential development. Salt spray test certificates showed 720 hours resistance, exceeding our 500-hour requirement. The PVDF topcoat maintained perfect color consistency across all coils with ΔE <1.5. Material arrived in 18 days with full EN 10204 3.1 documentation. Formability was outstanding at 1T bend with zero cracking. Already specified for our next seaside project.