1.What is the effect of cargo weight and density?
Galvanized coil: As a carbon steel base material, its density is approximately 7.85 tons/cubic meter.
Stainless steel coil: Its density is slightly higher; taking the most common 304 stainless steel as an example, its density is approximately 7.93 tons/cubic meter.
2.How do the value of goods affect insurance costs?
Galvanized coil: A bulk commodity with a relatively low unit price.
Stainless steel coil: A high-value steel product, typically several times the price of galvanized coil.
Analysis: Transportation companies bear greater risks for high-value goods. Therefore:
Insurance Premium: Cargo transportation insurance premiums are usually calculated as a percentage of the declared value of the goods. The insurance premium for stainless steel coil will be significantly higher than that for galvanized coil.
Risk Surcharge: Some logistics companies may charge a risk surcharge for high-value goods to cover their additional liability risks.
3.What are the differences between packaging and protection requirements?
Galvanized Coil:
Key Protection: Prevent scratches and moisture damage to the zinc coating.
Packaging Method: Typically bundled with steel straps and wrapped with a layer of moisture-proof paper or plastic film; relatively simple and economical.
Stainless Steel Coil:
Key Protection: Prevent any surface damage, including scratches, dents, fingerprints, and rust. Even a small defect can affect the quality and appearance of subsequent processed products, causing significant losses.
Packaging Method: Extremely stringent requirements. Typically includes:
Inner Layer: Special protective film or paper.
Middle Layer: Thick corrugated cardboard or fiberboard for cushioning.
Outer Layer: Sturdy steel straps or crates; sometimes even wooden or metal crates are required.
Edge Protection: Use specialized plastic or steel corner protectors.
4.What are the differences between the transportation method and the billing logic?
Less-than-Truckload (LTL) Shipping:
For LTL shipping, freight costs are determined by both weight and volume, charged based on the greater of the chargeable tons.
Since both have high densities, they are generally charged per weight ton. However, the high value of stainless steel may lead logistics companies to quote higher unit prices (RMB/kg or RMB/ton).
Full Truckload (FTL) Shipping:
This is the most common mode of transportation. Freight costs are usually quoted per truckload.
Key Restrictions: Weight and volume limits.
Galvanized coils: Due to their high density, they easily reach the truck's maximum load limit before filling the truck bed. We call this "heavy cargo."
Stainless steel coils: Also heavy cargo, but due to their high value, sometimes for safety reasons, shippers may not require trucks to be fully loaded to their maximum capacity. This can lead to some wasted transport capacity and indirectly increase unit transportation costs.
5.The transportation cost of stainless steel coils is significantly higher than that of galvanized coils. What are the main differences?
High insurance costs: Directly caused by the high value of the goods.
Extensive packaging costs: Packaging materials and methods are expensive to protect critical surface quality.
Delicate loading and unloading operations: Require more specialized tools and careful handling, increasing labor and time costs.
Potential value surcharges: Pricing strategies employed by logistics companies for high-value, high-risk goods.