Z20g-Z275g Zero/Mini/Regular/Big Spangle Hot Dipped Gi Coated Galvanized Steel Wave Sheets Steel Sheets Corrugated Roofing Sheet for Building Material

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Z20g-Z275g Zero/Mini/Regular/Big Spangle Hot Dipped Gi Coated Galvanized Steel Wave Sheets Steel Sheets Corrugated Roofing Sheet for Building Material

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Product Description

📋 Basic Information

Model NO.

THICKNESS 0.11-0.80-6.0mm WIDTH 600-1250mm

Standard

ASTM, JIS, GB

Certification

ISO, RoHS, IBR

Surface

Galvanized, Chromated, Dry, Unoiled

Technique

Hot Dipped

Zinc Coating

20-275G/M2

Spangle

Minimized, Regular, Big, Zero

Hardness

SGCC 60-70hrb, Sgch 80-90hrb

Capacity

10000 Tons / Month

HS Code

7210410000

📍 Product Description

High-Quality Hot Dipped Galvanized Steel Wave Roofing Sheet

Galvanized steel is a kind of thin steel sheet dipped into a bath of dissolved zinc so that it sticks to a layer of zinc on the surface. It mainly uses a continuous galvanizing process, immersing steel coils in a zinc tank to produce alloyed layers. This process provides excellent coating adhesion and weldability, making it ideal for construction and manufacturing.

Specification	Details
Standard	ASTM A653, JIS G3302, GB/T3830-2006
Grade	SGCC, DX51D, A653, SGCH, Q235B
Thickness	0.105mm-0.3mm (Customizable up to 6.0mm)
Width	600mm - 1250mm
Zinc Coating	20-275G/M2
Usage	Construction, Automotive, Shipbuilding, Household Appliances

🏭 Factory Profile

Business Type	Manufacturer/Factory
Main Products	Galvanized Steel Coil, Galvalume Steel Coil, PPGI, Corrugated Sheets
Production Lines	4 Lines: GI, GL, PPGI, PPGL
Plant Area	42,000 square meters
Main Markets	North America, South America, Asia, Africa, Mid East

🏛 Applications

The zinc crystals on the surface of galvanized steel show a pattern of scales or spangles. The solid galvanized layer provides excellent corrosion resistance, good welding, and cold forming properties. Typical uses include roofing, corrugated building panels, side panel structures, and deep drawing components.

📦 Packaging & Shipping

Package Method	3 layers of packing: Inner coil sleeve + waterproof paper + plastic film + iron sheet + steel strip
Loading Port	Tianjin/Qingdao Port
Insurance	All risks; third-party testing accepted

🌍 Global Market & Exhibition

With excellent quality and professional services, our products are distributed in Southeast Asia, the Middle East, Africa, Central and South America, Europe, and Australia. We adhere to the philosophy of "the good faith wins the world" to provide customer-oriented services.

❓ Frequently Asked Questions

What is the difference between regular spangle and zero spangle?

Regular spangle refers to the visible zinc crystal pattern formed during slow cooling, while zero spangle is achieved through special processing to create a smooth, uniform surface often preferred for painting.

What is the standard zinc coating for roofing sheets?

Our coating ranges from 20g/m² to 275g/m². For outdoor roofing in humid environments, a higher zinc coating (like Z180 or Z275) is recommended for better corrosion resistance.

How long is the delivery time for a standard order?

Typically, production and delivery take within 10 to 30 days after the contract is signed and the deposit is received.

Can you provide customized lengths and widths?

Yes, we provide standard widths like 900mm and 1000mm, but lengths can be customized (e.g., 1800mm, 2440mm, 3660mm) to meet your specific construction needs.

How do you ensure the quality of the galvanized sheets?

We perform strict quality inspections including thickness checks, zinc coating measurement, and hardness tests. We also accept third-party inspections to ensure international standards are met.

What are the payment terms for international orders?

We generally accept T/T (Telegraphic Transfer) or L/C (Letter of Credit) at sight.