Cold Rolled Spark Free Smooth Surface Galvanized Sheet Coil Used For PPGI
Product Overview
Cold rolled spark-free smooth surface galvanized steel coil specifically designed for PPGI (Pre-Painted Galvanized Iron) applications, featuring mirror-like smooth surface finish ideal for color coating.
Surface Morphology Classification
- Conventional Zinc Spangle: Natural solidification pattern with distinct crystalline appearance
- Small Zinc Spangle: Uniform surface achieved through special treatment to inhibit spangle growth
- Spark-free (Smooth Surface): Mirror-like finish produced by finishing machine rolling, perfect for color coating
- Alloyed Galvanized Sheet (GA): Uniform dark gray zinc-iron alloy layer surface
Substrate Types
- Commercial Grade (CQ): Standard grade for general applications
- Stamping Grade (DQ): Suitable for general stamping operations
- Deep Drawing Grades: DDQ, EDDQ, SEDDQ for increasingly complex formability requirements
- High-Strength Grades: HSLA, DP (duplex steel) providing corrosion resistance with enhanced strength
Coating Weight Standards
Common coating weight standards (g/m² total for both sides): Z60, Z80, Z120, Z180, Z275. Higher numbers indicate thicker coatings, providing superior corrosion resistance.
Key Advantages
- Low Processing Cost: Hot-dip galvanizing provides more economical rust protection compared to other coating methods
- Comprehensive Protection: Complete zinc coverage including recesses, sharp corners, and hidden areas
- Easy Inspection: Simple visual and non-destructive coating thickness testing methods
Applications
| Industry |
Applications |
| Construction |
Building roofs, structural components, architectural elements |
| Transportation |
Highway guardrails, automotive components |
| Manufacturing |
Sheet metal processing, ventilation ducts, chimneys |
| Consumer Goods |
Household appliance enclosures, kitchen utensils |
| Food Industry |
Grain storage, meat and aquatic product processing equipment |
Packaging & Shipping
Customized packaging available according to customer requirements and factory standards.
Frequently Asked Questions
Q1. What are your company's main products?
A1: Our main products include stainless steel plate/sheet, coil, round/square pipe, bar, channel, and related steel products.
Q2. How do you control quality?
A2: We provide Mill Test Certification with shipments and offer Third Party Inspection services. Our quality systems are certified with ISO and SGS standards.
Q3. What are the advantages of your company?
A3: We employ experienced professionals and technical personnel, offer competitive pricing, and provide superior after-sales service compared to other stainless steel companies.
Q4. How many countries have you exported to?
A4: We have exported to over 50 countries including markets in America, UK, Kuwait, Egypt, Turkey, Jordan, India, and other regions.
Q5. Can you provide samples?
A5: We provide free samples from existing inventory. Customized samples typically require 5-7 days for preparation.