Material Selection & Anti-Corrosion Treatment Comparison Table
| Material | Application Scenarios | Anti-Corrosion Treatment |
|---|---|---|
| Q235B / Q355 Carbon Steel | Underground pipe gallery, tunnel, civil air defense, general building | Hot-dip galvanizing (≥80μm), multi-alloy co-cementation |
| 304 Stainless Steel | Humid & mild corrosive environment (rainwater, basement) | Polishing / Passivation |
| 316 Stainless Steel | Coastal, chemical, high salt-fog corrosive environment | Pickling & Passivation |