Cabinet material selection depends on environment, cost, and protection (Source: Douyin): Golden Rule: Galvanized steel + powder coating for outdoor use (Source: Xinshunda); Core Requirement: Minimum IP54 rating (Source: Prefabricated Enclosures); Note: C5-grade coating for coastal areas (Source: hmhipech).
I.
Cold-Rolled Steel Sheet
SPCC: Cold-rolled carbon steel sheet (Source: Douyin); Cost: Low cost and good formability (Source: Douyin); Rust: Prone to rusting; requires coating (Source: Douyin); Thickness: 1.5mm cold-rolled sheet + reinforcement ribs (Source: Douyin); Application: General structural casings (Source: Douyin)—Cold-rolled: Cost, formability, and coating (three key characteristics).
II.
Galvanized Steel Sheet
SGCC: Hot-dip galvanized steel sheet (Source: Foxtheon); SECC: Electro-galvanized steel sheet (Source: Douyin); Sacrificial Layer: Zinc sacrificial layer prevents rust (Source: Foxtheon); Cut Edges: Protection needed for cut edges and scratches (Source: Douyin); Cost-Effectiveness: Excellent cost-to-performance ratio (Source: Sansteed)—Galvanized: SGCC, sacrificial layer, and cost-effectiveness (three key advantages).
III. Stainless Steel Sheets
304: SUS304 Austenitic (Source: Douyin); 316L: Molybdenum-added 316L for salt spray resistance (Source: SZWANDAAN); Coastal: Top choice for highly corrosive marine environments (Source: drametal); Lifespan: Excellent durability (Source: deshibo); Cost: Premium pricing (Source: SZWANDAAN)—Stainless Steel: 304 + 316L + Coastal (three scenarios).
IV.
Aluminum Alloy Sheets
5052: 5052/6061 aluminum sheets (Source: Foxtheon); Lightweight: Lightweight and easy to move (Source: deshibo); Heat Dissipation: Excellent thermal performance (Source: deshibo); Al-Zn Coating: Corrosion-resistant aluminum-zinc alloy coating (Source: Foxtheon); Roofing: Suitable for roof installation (Source: deshibo)—Aluminum Sheets: Lightweight + Heat Dissipation + Al-Zn Coating (three features).
V.
Surface Treatment
Powder Coating: Coating thickness ≥80µm (Source: Xinshunda); C4: C4-C5 powder coating (Source: drametal); Marine: Coastal C5 marine-grade (Source: hmhipech); Multi-layer: Multi-layer paint for salt and sulfur resistance (Source: hmhipech); Outdoor: Rust-proof outdoor powder coating (Source: Douyin)—Surface: Powder Coating + C4/C5 + Multi-layer (three processes).
VI. Protection and Thermal Insulation
IP54: Protection rating of at least IP54 (Source: Prefabricated enclosure); IP65: IP65 rating for high-altitude coastal areas (Source: Prefabricated enclosure); Rock Wool: 5cm rock wool and polyurethane insulation (Source: Prefabricated enclosure); Temperature: Suitable for -40°C to 70°C (Source: Prefabricated enclosure);
Condensation Prevention: Moisture-resistant interior walls and air conditioning (Source: Prefabricated enclosure)—Protection: IP54 + rock wool + anti-condensation (three key points).
VII. Procurement Recommendations
First, determine the environment (inland/coastal); second, select the base material (galvanized steel/stainless steel); third, check the coating (C4-C5 powder coating); fourth, verify the protection level (IP54+);
fifth, calculate the thickness (base plate 2.0mm, side panels 1.6mm)—Enclosure: Base material + coating + protection (three core elements).
