Qingdao Jero Steel Co., Ltd.
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Superior Surface Finish Surface Electro Galvanized Steel Coil EG Material
Electro galvanized (EG) steel coil refers to cold-rolled steel that has been coated with a layer of
zinc through an electrochemical process. This process allows for precise control
over the coating thickness and produces a very smooth, uniform surface.
3 Kinds Different Product Surface
1 Zero Spangle: smooth and uniform, without visible zinc patterns.
2 Electro-galvanize: smooth, bright, and uniform, with a fine metallic luster and no visible spangles.
3 Regular Spangle: visible zinc crystal patterns with a slightly textured metallic appearance.
distinct, visible zinc crystal patterns with a textured metallic appearance.
Our Factory
1) Company philosophy : “Making friends sincerely and developing with reputation” The quality
decides the market,and the attitude decides the development”.
2) 40 professionals and technical personnels, 60 domestic and international trade personnels.
2 industry-leading Gl production lines, 5 PPGI production lines, 1 pattern PPGI production
line, 2 GL production line.
3) We follow strict quality control and aim for perfection in every process. Our goal is to be responsible
to our products and customers by supplying the best quality product.
Quality Control
Our company introduced testing equipment,for product testing,raw materials,semi-finished products,
finished products.
a) Dimensional and Surface Measurement
thickness, width, length, zinc coating quantity,paint adhesion,surface roughness etc.
b) Mechanical Properties Testing
Room-temperature and high-temperature mechanical tests, Brinell hardness, HRC hardness,
micro-hardness, expansion, flattening, cupping, bending, compression.
C) Metallurgical & Corrosion Resistance
Macrostructure analysis, fracture detection, density, grain size, residual stress,
dezincification corrosion, salt spray, annealing.
Ocean Shipping
There are two ways to reinforce color coated steel coils: standard reinforcement and special
reinforcement.
standard reinforcement :
We protect the coils by adding cushioning materials and tightening them with lashing straps,
non-slip wooden blocks underneath to prevent movement, meanwhile, we use waterproof
package,and add desiccants to prevent against moisture.
Special Reinforcement
Based on standard reinforcement, we made impact-resistant frames to provide stronger
protection against impact, suitable for long-distance sea freight or harsh conditions.
Key Advantages
Superior Surface Finish: Provides a smooth, consistent, and aesthetically pleasing surface
that is perfect for subsequent finishing processes like painting or chromating.
Excellent Paint Adhesion: The clean, uniform surface ensures strong adhesion for paint and
organic coatings, preventing peeling or blistering.
Precise Coating Control: The electroplating process allows for exact and differential coating
weights on each surface.