PRODUCTS DETAILS

Home > Products >

Galvanized Color Coated Coil Wholesale，Global Shipping，10-20 Years Service Life。

Products

Aluminum Magnesium Manganese Plate

Titanium Tin Color Steel Plate

C Section Steel Channel

Mrs. Mr Zhang

Jack@zqppgi.com

+86-13905436749-13905436749

15154399969

Contact Now

Galvanized Color Coated Coil Wholesale，Global Shipping，10-20 Years Service Life。

MOQ:	1 Ton
Price:	400-700 USD/Ton
Delivery Period:	7 - 15 Days
Payment Method:	L/C,T/T
Supply Capacity:	20000Tons/Month

Details Information

Product Description

Detail Information

Place of Origin

China

Brand Name

ZHONGQIANG

Certification

Model Number

0.37*1200

Top Color:

Ral Or Customized

Packing:

Standard Seaworthy Packaging

Warranty:

According To The Use Environment

Base Metal:

Galvanized Or Galvalume Steel

Corrosionresistance:

High Due To Galvanized Base And Paint Coating

Coating Type:

PE, SMP, HDP, PVDF

Highlight:

galvanized color coated steel coil

PPGI steel coil with warranty

long service life steel coil

Product Description

Types and Production Process of Galvanized Steel Sheets

Galvanized steel sheets are corrosion-resistant steel products coated with a zinc layer on cold-rolled/hot-rolled steel surfaces. They are categorized by galvanizing processes, substrate types, etc., with distinct production processes:

1. Main Types of Galvanized Steel Sheets

Classification Basis	Type	Features & Application Scenarios
Galvanizing Process	Hot-Dip Galvanized (HDG)	Thick zinc layer (30-275g/㎡), high corrosion resistance; used for construction, outdoor facilities
	Electro-Galvanized (EG)	Thin zinc layer (10-50g/㎡), smooth surface; used for home appliances, interior parts
	Galvannealed (GA)	Zinc-iron alloy layer formed with substrate, good weldability; used for auto bodies
Substrate Type	Cold-Rolled Substrate Galvanized Sheet	Flat surface, high precision; used for products with high appearance requirements
	Hot-Rolled Substrate Galvanized Sheet	Low cost, thick gauge; used for structural parts, heavy equipment
Surface Treatment	Passivated Galvanized Sheet	Passivation film on zinc layer, improves coating adhesion; commonly used as color coating substrate
	Chromium-Free Passivated Galvanized Sheet	Environmentally compliant (RoHS/REACH); preferred for exports to Europe & America

2. Core Production Process of Galvanized Steel Sheets

Taking mainstream hot-dip galvanized sheets as an example, the process is continuous automated operation:

Substrate Pre-treatment
- Uncoiling & Leveling: Uncoil and level cold-rolled/hot-rolled steel coils to ensure flatness;
- Degreasing & Cleaning: Remove oil and scale via alkaline washing and pickling, then rinse with clean water.
Annealing & Reduction

The cleaned substrate is heated in a continuous annealing furnace at 800-900℃ in a reducing atmosphere (N₂+H₂) to eliminate cold-rolling stress and reduce residual iron oxide on the surface to pure iron (enhances zinc layer adhesion).
Galvanizing Treatment
- Hot-Dip Galvanizing: The annealed substrate is immersed in 450℃ molten zinc, forming a double-layer structure (zinc-iron alloy layer + pure zinc layer);
- Zinc Layer Control: High-pressure air from an air knife adjusts the zinc layer thickness; then cool with air to solidify the zinc layer.
Post-Treatment & Finished Product
- Passivation/Fingerprint-Resistant Treatment (Optional): Form a passivation film on the zinc layer to improve corrosion resistance and processability;
- Slitting & Coiling: Slit to customer specifications, coil into rolls, and package for storage after quality inspection.

Tags:

Products

MOQ:	1 Ton
Price:	400-700 USD/Ton
Delivery Period:	7 - 15 Days
Payment Method:	L/C,T/T
Supply Capacity:	20000Tons/Month

Detail Information

Product Description

Detail Information

Place of Origin

China

Brand Name

ZHONGQIANG

Certification

ISO

Model Number

0.37*1200

Top Color:

Ral Or Customized

Packing:

Standard Seaworthy Packaging

Warranty:

According To The Use Environment

Base Metal:

Galvanized Or Galvalume Steel

Corrosionresistance:

High Due To Galvanized Base And Paint Coating

Coating Type:

PE, SMP, HDP, PVDF

Minimum Order Quantity:

1 Ton

Price:

400-700 USD/Ton

Delivery Time:

7 - 15 Days

Payment Terms:

L/C,T/T

Supply Ability:

20000Tons/Month

Highlight

galvanized color coated steel coil

PPGI steel coil with warranty

long service life steel coil

Product Description

Types and Production Process of Galvanized Steel Sheets

1. Main Types of Galvanized Steel Sheets

Classification Basis	Type	Features & Application Scenarios
Galvanizing Process	Hot-Dip Galvanized (HDG)	Thick zinc layer (30-275g/㎡), high corrosion resistance; used for construction, outdoor facilities
	Electro-Galvanized (EG)	Thin zinc layer (10-50g/㎡), smooth surface; used for home appliances, interior parts
	Galvannealed (GA)	Zinc-iron alloy layer formed with substrate, good weldability; used for auto bodies
Substrate Type	Cold-Rolled Substrate Galvanized Sheet	Flat surface, high precision; used for products with high appearance requirements
	Hot-Rolled Substrate Galvanized Sheet	Low cost, thick gauge; used for structural parts, heavy equipment
Surface Treatment	Passivated Galvanized Sheet	Passivation film on zinc layer, improves coating adhesion; commonly used as color coating substrate
	Chromium-Free Passivated Galvanized Sheet	Environmentally compliant (RoHS/REACH); preferred for exports to Europe & America

2. Core Production Process of Galvanized Steel Sheets

Taking mainstream hot-dip galvanized sheets as an example, the process is continuous automated operation:

Substrate Pre-treatment
- Uncoiling & Leveling: Uncoil and level cold-rolled/hot-rolled steel coils to ensure flatness;
- Degreasing & Cleaning: Remove oil and scale via alkaline washing and pickling, then rinse with clean water.
Annealing & Reduction

The cleaned substrate is heated in a continuous annealing furnace at 800-900℃ in a reducing atmosphere (N₂+H₂) to eliminate cold-rolling stress and reduce residual iron oxide on the surface to pure iron (enhances zinc layer adhesion).
Galvanizing Treatment
- Hot-Dip Galvanizing: The annealed substrate is immersed in 450℃ molten zinc, forming a double-layer structure (zinc-iron alloy layer + pure zinc layer);
- Zinc Layer Control: High-pressure air from an air knife adjusts the zinc layer thickness; then cool with air to solidify the zinc layer.
Post-Treatment & Finished Product
- Passivation/Fingerprint-Resistant Treatment (Optional): Form a passivation film on the zinc layer to improve corrosion resistance and processability;
- Slitting & Coiling: Slit to customer specifications, coil into rolls, and package for storage after quality inspection.

Tags:

Color Coated Aluminium Coil

Steel Sheet Coils

PPGI Steel Coil

PPGI Steel Sheets

Aluminum Magnesium Manganese Plate

Roofing Aluminum Tile

Embossed Aluminum Coil

Household Aluminum Foil

Titanium Tin Color Steel Plate

Cold Storage Board

Purification Board

Nano Insulation Board

Container House

Detachable Container House

Foldable Container House

Flat Pack Container House

C Section Steel Channel

Galvanized Color Coated Coil Wholesale，Global Shipping，10-20 Years Service Life。

galvanized color coated steel coil

PPGI steel coil with warranty

long service life steel coil

Types and Production Process of Galvanized Steel Sheets

1. Main Types of Galvanized Steel Sheets

2. Core Production Process of Galvanized Steel Sheets

PPGI Coil Sheet,

PPGI Coated Coil,

Color Coated Aluminium Coil

Steel Sheet Coils

PPGI Steel Coil

PPGI Steel Sheets

Aluminum Magnesium Manganese Plate

Roofing Aluminum Tile

Embossed Aluminum Coil

Household Aluminum Foil

Titanium Tin Color Steel Plate

Cold Storage Board

Purification Board

Nano Insulation Board

Container House

Detachable Container House

Foldable Container House

Flat Pack Container House

C Section Steel Channel

galvanized color coated steel coil

PPGI steel coil with warranty

long service life steel coil

Types and Production Process of Galvanized Steel Sheets

1. Main Types of Galvanized Steel Sheets

2. Core Production Process of Galvanized Steel Sheets

PPGI Coil Sheet,

PPGI Coated Coil,