C55E Chemical Composition Table
|
Element |
Content Range (wt%) |
|
Carbon (C) |
0.52–0.60 |
|
Silicon (Si) |
≤0.40 |
|
Manganese (Mn) |
0.60–0.90 |
|
Phosphorus (P) |
≤0.035 |
|
Sulfur (S) |
≤0.035 |
|
Chromium (Cr) |
≤0.40 |
|
Nickel (Ni) |
≤0.40 |
|
Copper (Cu) |
≤0.30 |
Comparison of Zinc Layer Characteristics
|
Item |
Hot-Dip Galvanizing (HDG) |
Electrogalvanizing |
|
Coating Thickness |
Thicker (50-150 µm) |
Thinner (3-15 µm) |
|
Adhesion |
Strong (zinc-iron alloy layer) |
Moderate (pure zinc deposition) |
|
Appearance |
Rough, with spangle pattern |
Smooth, uniform |
|
Corrosion Resistance |
Excellent (20-70 years outdoors) |
Moderate (5-15 years, needs additional protection) |
|
Workability |
Moderate (hard coating may peel when formed) |
Excellent (thin layer, suitable for stamping/bending) |
|
Cost |
Lower (suitable for large areas/thick plates) |
Higher (suitable for precision parts) |
|
Hydrogen Embrittlement Risk |
Low (but high temp may affect heat-treated steel) |
High (requires dehydrogenation, especially for high-strength steel like C55E) |
Introduction
The C55E Galvanized Medium Carbon Cteel Plate is a medium carbon steel plate, typically used to manufacture structural parts that require moderate strength and toughness.
Recommended Zinc Layer
|
Application |
Best Galvanizing Method |
|
General construction, machinery |
Hot-dip galvanizing (HDG) |
|
Automotive/forming parts |
Electrogalvanizing or Galvannealing |
|
Marine/coastal use |
Galfan or Galvalume |
|
Aesthetic/finished parts |
Pre-painted galvanized (PPGI) |
Advatages of C55E
|
Advantage |
|
High Strength & Hardness |
|
Good Wear Resistance |
|
Excellent Fatigue Resistance |
|
Balanced Machinability |
|
Cost-Effectiveness |
|
Heat Treatment Adaptability |
|
Surface Treatment Compatibility |
Packaging
Applications
Mechanical Manufacturing
Used to produce mechanical parts that bear heavy loads, such as gears, shafts, and crankshafts, due to their high strength and hardness.
Automotive Industry
Used to manufacture structural components such as automobile chassis and frames, providing the necessary strength and toughness to ensure vehicle safety and stability.
Construction Engineering
Used in the production of structural building components, such as steel beams and columns, to meet the load-bearing requirements of buildings.
Petrochemical Industry
Used to manufacture oil drilling equipment, chemical reactors, and other components. Its corrosion resistance and strength make it suitable for harsh environments.
Energy Industry
Used to produce power equipment, transmission towers, and related components, meeting the demands for high strength and corrosion resistance.
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