1.In terms of unit weight cost, which one is more advantageous, thin plate or thick plate?
The cost structure of galvanized steel sheet includes two parts: substrate cost (steel) and galvanizing processing fee:
Substrate cost: Steel price is calculated by weight (such as yuan/ton), and the unit price difference of the substrate between thick plate and thin plate is very small (same material, same steel mill).
Galvanizing processing fee: The processing fee is usually charged by "unit area" or "unit weight". When calculated by area: the surface area per unit weight of thick plate is smaller, the total processing fee of thick plate is lower, and the cost per unit weight is better.
When calculated by weight: the processing fee difference is not large, but the transportation and loading and unloading efficiency of thick plate is higher due to the large weight of a single sheet, which indirectly reduces the logistics cost.
2.In load-bearing structural scenarios, should thin plates or thick plates be preferred?
To meet the strength requirements, thin plates need to be thickened or reinforced to meet the load-bearing standards, which may be more expensive than using thick plates directly (such as welding and reinforcing 2mm thin plates vs. directly using 3mm thick plates).
Advantages of thick plates: Reduce splicing and welding processes, and reduce labor and auxiliary material costs.
3.For decorative or lightweight scenes, is it better to use thin plates or thick plates?
Thin plates (0.3-1mm) are more suitable, no extra thickness is required, and material waste can be reduced (more excess material will be left after thick plates are cut).
Advantages of thin plates: light weight per unit area, saving transportation costs, and lower energy consumption for processing (bending, stamping).
4.What are the hidden costs of thin and thick plates?
Processing cost: Thin plates are easy to deform, and more sophisticated equipment and processes are required for processing (such as preventing bending and cracking). Although thick plates are difficult to process, the precision requirements are lower, and the comprehensive processing fee may be lower.
Service life: Thick plates usually have thicker galvanized layers (or thicker coatings can be customized), have longer service life in corrosive environments, and have lower long-term replacement costs than thin plates (such as seaside and industrial areas).
5.What scenarios are thin plates and thick plates suitable for?
Scenarios where thick plates have cost advantages: load-bearing structures, large-volume purchases, and highly corrosive environments (low long-term costs).
Scenarios where thin plates have cost advantages: lightweight requirements, small-volume decorative parts, and low-strength requirements (reducing material waste).