AZM150 AFP Galvalume Steel 1200MM ASTM A792M CS-B
Corrugated Sheet Panels Roof Tiles GL 55% Aluzinc Steel Coil
Introduction:
55% Aluzinc steel coils, also known as Galvalume or Aluminium-Zinc
alloy coated steel, are a type of steel coated with an alloy
comprising approximately 55% aluminum, 43.4% zinc, and 1.6%
silicon. This unique coating provides a combination of the
excellent corrosion resistance of aluminum and the galvanic
protection of zinc, making it a superior material for various
applications.
Composition:
- Aluminum (55%): Provides exceptional corrosion resistance by
forming a protective layer of aluminum oxide.
- Zinc (43.4%): Offers sacrificial protection, similar to
traditional galvanized steel, protecting the steel substrate by
corroding preferentially.
- Silicon (1.6%): Enhances adhesion of the coating to the steel and
helps maintain the integrity of the alloy layer during fabrication.
Characteristics and Benefits:
1. Corrosion Resistance:
- The aluminum in the coating forms a passive layer that resists
corrosion.
- Zinc provides sacrificial protection, which is especially
beneficial at cut edges, scratches, and areas of coating damage.
- Overall, the corrosion resistance is significantly better than
that of pure galvanized steel, typically lasting up to four times
longer in similar environments.
2. Heat Resistance:
- Can withstand high temperatures up to 315°C (600°F) without
discoloration or loss of performance, making it suitable for
high-temperature applications.
3. Thermal Reflectivity:
- The coating reflects a high percentage of heat and sunlight,
which can improve energy efficiency in buildings by reducing
cooling costs.
4. Aesthetic Appeal:
- The surface has a unique spangled appearance, often considered
more attractive than plain galvanized steel.
- Can be pre-painted or left as-is for an aesthetically pleasing
finish.
5. Durability:
- Offers a long service life due to its resistance to weathering
and corrosion.
- The protective properties remain effective even in harsh
environments, such as marine or industrial settings.
Applications:
1. Construction:
- Roofing and wall panels
- Gutters and downspouts
- Steel framing and structural supports
- Siding and cladding materials
2. Automotive:
- Body panels
- Underbody components
- Heat shields and exhaust systems
3. Appliances:
- Housings for washing machines, dryers, and refrigerators
- Microwave oven panels and components
4. Agricultural Equipment:
- Silos and grain bins
- Farm machinery and equipment panels
5. Industrial:
- Air conditioning and heating ducts
- Electrical cabinets and enclosures
- Furniture and storage systems
Summary:
55% Aluzinc steel coils are a versatile and durable material known
for their superior corrosion resistance, heat resistance, and
aesthetic appeal. These coils are used in various industries,
including construction, automotive, appliances, agriculture, and
industrial applications, providing long-lasting performance and
protection.
Detailed Parameters:
| SURFACE TREATMENT | DESCRIPTION OF USE |
| CHROMATE PASSIVATION(C) | Surface treatment for high-strength steel plates after hot-dip
plating to reduce white rust during transport and storage |
| Chrome-free passivation(C5) | Surface treatments that require limiting the amount of hexavalent
chromium, etc. in passivation solutions that are harmful to the
environment and humans |
| Anti-finger print(N) | Surface treatment after the passivation process, which acts as a
lubricant during processing, prevents fingerprints from staining
during operation, and prevents premature blackening of the surface
during use. |
| Chrome-free and fingerprint resistant(N5) | Surface treatment after the passivation process, in the process of
lubrication, to prevent the operation of the fingerprint staining,
to prevent the use of the surface of the process of premature
blackening, and at the same time, the requirement to limit the
fingerprint-resistant film harmful to the environment and human
body, such as hexavalent chromium content |
| Oiled(O) | Surface treatment added after the passivation process to further
reduce rusting during long-distance transport and long-term storage |
| Usage | Steel Grade | Yield Strength(MPa) | Tensile Strength(MPa) | Elongation at break A80mm % ≥ |
| Generally used | DC51D+AZ | 190～360 | 270～500 | 22 |
| stamping | DC52D+AZ | 140～300 | 270～420 | 26 |
| deep drawing | DC53D+AZ | 140～260 | 270～380 | 30 |
| extra-deep washout | DC54D+AZ | 120～220 | 260～350 | 36 |
| Usage | Steel Grade | Yield Strength(MPa) ≥ | Tensile Strength(MPa) ≥ | Elongation at Brake A80mm % ≥ | Elongation at Break A50mm % ≥ |
| Structural usage | S250GD+AZ | 250 | 330 | 19 | / |
| S300GD+AZ | 300 | 380 | 18 | / |
| S350GD+AZ | 350 | 420 | 16 | / |
| S450GD+AZ | 450 | 480 | 15 | / |
| S550GD+AZ | 550 | 550 | / | 2 |
| Environment | Zinc Weight/ G/sqm |
| indoor environment | AZ70 or AZ100 |
| Suburban environment | AZ150 or AZ100 + painting |
| Urban or industrial areas | AZ150+ pre painted paint coating |
| Coastal Areas | AZ180+ thick paint coating |
Application:
Export Package
