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Zinc Coated Ral Hot Dipped Galvanized Coil Regular Spangle Little Spangle

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Zinc Coated Ral Hot Dipped Galvanized Coil Regular Spangle Little Spangle

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Brand Name : Wuxi Talat

Model Number : GI

Certification : Manufacture certificate

Place of Origin : China

MOQ : 1ton

Price : negotiate

Payment Terms : T/T,Western Union,L/C

Supply Ability : 10000tons per month

Delivery Time : Negotiated

Packaging Details : Standard seaworthy export packing or as customer demands

Coil Id : 508 / 610 mm

Zinc Layer : 30-160 or as customer required

Pay Terms : T/T L/C

Coil Weight : 3-10 ton or Baby coils

Type : Hot Dipped

Weight Per Coil : 1-10 tons

Yield Strength : 230-450 MPa

Tensile Strength : 270-550 MPa

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Zinc Coated Ral Hot Dipped Galvanized Coil Regular Spangle Little Spangle
Product Overview

Zinc Coated Hot Dipped Ral Galvanized Coil available in Regular Spangle and Little Spangle variations to meet diverse application requirements.

Surface Morphology Classification
Conventional Zinc Spangle

Formed naturally by the solidification of molten zinc, with a distinct crystalline pattern.

Small Zinc Spangle

Developed through special treatment to inhibit spangle growth, resulting in a more uniform surface.

Spark-free (Smooth Surface)

Rolled on a finishing machine, resulting in a mirror-like smooth surface, ideal for color coating.

Alloyed Galvanized Sheet (GA)

Surface is a uniform dark gray zinc-iron alloy layer.

Substrate Type Classification
  • Commercial grade (CQ): For general use
  • Stamping grade (DQ): Used for general stamping
  • Deep drawing grade (DDQ), extra-deep drawing grade (EDDQ), ultra-extra-deep drawing grade (SEDDQ): Used for complex parts with increasingly demanding formability requirements
  • High-strength structural steel (HSLA), duplex steel (DP), etc.: Provides corrosion resistance while ensuring strength
Coating Weight Standards

Based on coating weight (unit: g/m², total for both sides):

Common standards: Z60, Z80, Z120, Z180, Z275, etc. (The numbers represent the grams of coating per square meter). The higher the number, the thicker the coating, the stronger the corrosion resistance, and the higher the price.

Product Display
Zinc Coated Ral Hot Dipped Galvanized Coil Regular Spangle Little Spangle Zinc Coated Ral Hot Dipped Galvanized Coil Regular Spangle Little Spangle
Product Advantages
Low Processing Cost

The cost of hot-dip galvanizing and rust prevention is lower than that of other paint coatings.

Multi-faceted Protection

Each part of the plated components can be coated with zinc, even in recesses, sharp corners and hidden places can be protected comprehensively.

Simple Inspection

The hot-dip galvanized layer can be tested visually and with a simple non-destructive coating thickness gauge.

Applications
Galvanized steel coil products are mainly used in construction, light industry, automobile, agriculture, animal husbandry, fishery and other industries. Such as building roofs, highway guardrails, sheet metal processing, roof grilles, household appliance enclosures, ventilation ducts, chimneys, kitchen utensils, grain storage and transportation, frozen processing of meat and aquatic products, etc.
Zinc Coated Ral Hot Dipped Galvanized Coil Regular Spangle Little Spangle
Packaging & Shipping
Zinc Coated Ral Hot Dipped Galvanized Coil Regular Spangle Little Spangle Zinc Coated Ral Hot Dipped Galvanized Coil Regular Spangle Little Spangle

Product packaging can be customized according to customer requirements and factory standards.

Frequently Asked Questions
What does zinc coating weight mean? What options do you offer?

Zinc coating weight (also called zinc mass) is measured in g/m² (both sides total). It determines the corrosion resistance lifespan of the steel.

Grade Coating Mass (g/m²) Typical Application
Z40-Z80 40-80 Indoor use, light protection
Z100-Z140 100-140 General construction, roofing
Z180-Z275 180-275 Heavy industry, structural components
Z350-Z450 350-450 Coastal areas, high-corrosion environments

Note: Higher coating weight = longer service life = higher cost. We recommend selecting based on your actual environmental conditions.

What standards do you follow?

Our galvanized steel coils comply with major international standards:

  • ASTM A653 - American Standard
  • JIS G3302 - Japanese Standard
  • EN 10346 - European Standard
  • GB/T 2518 - Chinese Standard

All products come with Mill Test Certificates (MTC) that can be provided upon shipment.

What is spangle? Regular spangle vs zero spangle - which should I choose?

Spangle refers to the visible crystal patterns on the surface of galvanized steel, formed during the solidification of the zinc coating.

Type Description Best Applications
Regular Spangle Visible snowflake-like crystals Applications where appearance is not critical; prepainted base
Zero Spangle (Minimal Spangle) Smooth, uniform surface with no visible crystals Painting applications, prepainted steel, automotive parts, where surface smoothness matters

Recommendation: If you plan to paint directly on the surface, zero spangle is strongly recommended for better paint adhesion.

Does galvanized steel rust?

While galvanized steel offers excellent corrosion protection, white rust (zinc oxide) can occur under certain conditions:

  • Poor ventilation during storage
  • High humidity or condensation
  • Direct contact with rainwater
How to prevent white rust?

Prevention methods:

  • Passivation treatment - We apply chromate or chromium-free passivation before shipment
  • Oil coating - Anti-rust oil can be applied for ocean freight shipments
  • Proper storage - Store in a dry, ventilated warehouse; avoid outdoor storage

Product Tags:

Ral hot dipped galvanized coil

      

Zinc Coated hot dipped galvanized coil

      

Little Spangle gi sheet coil

      
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