ALUZINC STEEL COIL
| Categories | Galvalume Steel |
|---|---|
| Brand | Hzhou kaihao technology co.,Ltd. |
| Model | AZ-COIL |
| Coating | AZ (55% Al / 43.4% Zn / 1.6% Si) |
| Thickness | 0.14mm – 2.0mm |
| Width | 600mm – 1250mm |
| Coating Weight | AZ50 – AZ180 g/m² |
| Standard | ASTM A792, EN 10346, JIS G3321 |
| MOQ | 25 tons (trial order accepted) |
Aluzinc Steel Coil
Aluzinc steel coil, also known as galvalume steel coil (GL) , is produced through a process known as continuous hot-dip coating, which involves coating a steel substrate with a layer of 55% aluminum, 43.5% zinc, and 1.5% silicon to enhance its performance characteristics, providing superior corrosion resistance and longevity. This coating not only shields the steel from environmental factors but also offers a smooth, reflective surface that enhances its aesthetic appeal.
Aluzinc steel coil is crucial in construction for roofing, siding, and structural components. In the automotive sector, it is used for body parts and frames. Its versatility extends to appliances, HVAC systems, and agricultural equipment, underscoring its wide application range due to its strength, durability, and exceptional corrosion resistance.
Specifications
| Product | Aluzinc Steel Coil |
| Thickness | 0.12 – 2.00 MM |
| Width | 720 – 1250 MM or Strip as customized |
| Steel Grade |
DX51D, DX52D, DX53D, DX54D, S250GD, S350GD, S450GD, S550GD, CS-A, CS-B, CS-C, G300, G350, G450, G500, G550 SGLCC, SGLCH, or others |
| Coating | AZ20-AZ200 G/M2 |
| ALUZINC STEEL COIL | |||||
| Grade | Standard | Yield Strength (MPa) | Tensile Strength (MPa) | Elongation after fracture A (%) | Typical Applications |
| DX51D+AZ | EN 10346 | 240‑380 | 270‑500 | ≥22 | General bending, roof tiles, prepainted substrate, cabinets, most popular grade for export |
| DX52D+AZ | EN 10346 | 140‑300 | 270‑420 | ≥26 | Light‑drawing forming, home‑appliance housing, formed components |
| DX53D+AZ | EN 10346 | 140‑260 | 270‑380 | ≥30 | Deep‑drawing stamped parts, complex formed housings |
| S220GD+AZ | EN 10346 | ≥220 | ≥300 | ≥20 | General structural components, secondary purlins |
| S250GD+AZ | EN 10346 | ≥250 | ≥330 | ≥19 | Steel‑structure purlins, supports, building envelopes |
| S350GD+AZ | EN 10346 | ≥350 | ≥420 | ≥16 | High‑strength galvalume, roofing, storage racks, equipment bases |
| SGLCC | JIS G3321 | ≤290 | ≥270 | ≥22 | JIS commercial grade, cold‑rolled substrate, sheet metal, prepainted substrate |
| SGLCH | JIS G3321 | ‑ | ≥270 | ≥18 | Galvalume on pickled hot‑rolled substrate, heavy‑gauge structural parts |
| CS‑Type A | ASTM A792 | ‑ | ≥270 | ≥20 | ASTM commercial grade |
| FS‑Type A | ASTM A792 | ‑ | ≥270 | ≥22 | ASTM forming grade for stamping |
| ALUZINC STEEL COIL Surface Treatment | ||||
| Treatment Method | English Name | Process Description | Function / Effect | Application Scenarios |
| Skin‑pass (Temper Rolling) | Skin‑pass / Temper rolling | Low‑reduction rolling after hot‑dip coating | Eliminate yield point elongation, level surface, improve stamping performance and surface precision | Stamping & deep‑drawing sheets |
| Oiling | Oiling | Apply a layer of anti‑rust mineral oil on surface | Short‑term rust prevention, scratch resistance, lubrication during stamping | Bare export coils, long‑term storage & transportation |
| Passivation | Passivation | Chemical treatment (conventional chromate passivation / eco‑friendly chrome‑free passivation) | Improve corrosion resistance, prevent white rust, enhance adhesion for subsequent painting | General protection; passivation film is standard configuration |
| Anti‑fingerprint Treatment | Anti‑fingerprint (AFP) | Coat organic / inorganic anti‑fingerprint layer | Resist sweat & fingerprint marks, hand‑print contamination and moisture | Home appliance & office equipment panels |
| Pre‑painted (Color Coating) | Pre‑painted / Color coating | Apply primer + topcoat (polyester, PVDF, etc.) | Decoration & weather resistance, multi‑purpose material | Building exterior walls, roof panels, home appliance casings |
| Film Lamination | Film lamination | Attach PVC / PET protective film | Anti‑scratch & anti‑contamination; peel off after fabrication | High‑grade panels, mirror‑like panels for transportation protection |
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