Color Coated Galvanized Steel Coil - ASTM A653 AZ150 Prepainted Steel Roll

Color coated galvanized steel coil represents a premium-grade steel product featuring a protective zinc coating combined with a durable paint finish, specifically engineered for applications demanding both corrosion resistance and aesthetic appeal. This advanced material finds extensive application in architectural cladding, roofing systems, appliance manufacturing, and automotive components where long-term performance and visual consistency are critical requirements. Manufactured to comply with ASTM A653/A653M standards with AZ150 coating designation, our prepainted steel rolls serve construction contractors, metal fabricators, and industrial manufacturers seeking factory-applied finishes that eliminate secondary painting operations.

What is Color Coated Galvanized Steel Coil?

Color coated galvanized steel coil is a multi-layer composite material consisting of a cold-rolled steel substrate, hot-dip galvanized zinc coating (typically 150 g/m² per ASTM A653), chemical conversion treatment, primer layer, and topcoat finish applied through continuous coil coating lines. The manufacturing process ensures uniform thickness of 0.35-0.80 mm with paint film thickness ranging from 15-25 micrometers, delivering superior adhesion properties and UV resistance exceeding 2000 hours in accelerated weathering tests per ASTM G154.

Color Coated Galvanized Steel Coil Technical Specifications

Our prepainted galvanized coils conform to ASTM A653 Grade 33 (230 MPa yield strength minimum) with AZ150 aluminum-zinc alloy coating providing 150 g/m² total coating mass. Standard dimensions include coil width from 600-1250 mm, thickness tolerance of ±0.02 mm per EN 10143, and coil weight up to 8 metric tons. The paint system features polyester (PE), silicon-modified polyester (SMP), or polyvinylidene fluoride (PVDF) topcoats with color stability ΔE ≤ 5 after 10 years outdoor exposure in temperate climates.

Why Choose Our Color Coated Galvanized Steel Coil

We maintain ISO 9001:2015 certified production facilities equipped with five-stage pretreatment systems and precision coating applicators ensuring paint thickness uniformity within ±2 micrometers. Our technical team provides mill test certificates documenting zinc coating weight per ASTM A90, paint adhesion per ASTM D3359 (minimum 4B rating), and pencil hardness per ASTM D3363 (minimum H grade). With 15+ years supplying to 47 countries, we offer factory-competitive pricing for orders from 25 metric tons, coupled with technical support for custom color matching using RAL, Pantone, or customer-provided samples.

Frequently Asked Questions

What is the minimum order quantity (MOQ)?

Our standard MOQ is 25 metric tons per color and specification combination, equivalent to approximately 3-4 coils depending on thickness selection. For trial orders or sampling purposes, we accommodate reduced quantities of 10 tons with adjusted pricing. Mixed container loading is available for orders combining multiple colors or gauges, subject to production scheduling and minimum coil weight of 3 tons per specification.

Do you provide material test certificates?

Yes, every shipment includes comprehensive mill test reports (MTR) documenting chemical composition per ASTM E415, mechanical properties per ASTM A370, zinc coating weight per ASTM A90/A90M, and paint system performance data including adhesion, flexibility, and impact resistance. Additional third-party inspection certificates from SGS, BV, or TÜV are available upon request at the time of order placement, with inspection costs calculated separately based on scope of testing required.

What is the typical delivery time?

Standard lead time ranges from 25-30 working days from deposit receipt for stock colors (white, ivory, sea blue, brick red) in common thicknesses. Custom color orders require 35-40 working days to accommodate color matching, sample approval, and production scheduling. Rush orders can be expedited to 18-20 days with priority production surcharge of 8-12% depending on order volume and factory capacity. Sea freight transit adds 15-35 days depending on destination port.

Can you cut to custom sizes?

Our slitting lines accommodate custom width cutting from 600 mm to 1250 mm with tolerance of ±3 mm, and we offer sheet cutting services for lengths from 1000 mm to 6000 mm with ±5 mm precision. Slitting charges apply at $45-65 per metric ton depending on number of cuts and width specifications. For high-volume orders exceeding 100 tons annually, we provide dedicated slitting programs with preferential rates and priority scheduling to support just-in-time delivery requirements.

Get a Competitive Quote for Color Coated Galvanized Steel Coil

Request your detailed quotation today by providing specifications including thickness, width, color requirements (RAL code or sample), coating type (PE/SMP/PVDF), and estimated annual volume. Our sales engineers respond within 8 business hours with mill-direct pricing, technical data sheets, and sample availability. Contact us to discuss your project requirements and discover how our prepainted steel solutions deliver cost-effective performance for architectural, industrial, and appliance applications worldwide.