- Cast & Forged[10]
- Other Electronic Components[2]
- Other Processing Services[1]
- Other Mechanical Parts[1]
- Machining Services[2]
- Pipe Fittings[2]
- Valves[2]
- Metal Processing Machinery Parts[5]
- Other Welding & Soldering Supplies[4]
- Other Steel Products[1]
- Steel Sheets[2]
- Special Transportation[1]
- Toothpick Making Machinery[1]
- Brick Making Machinery[1]
- Firefighting Equipment[1]
- Pumps[2]
- Pneumatic Tools[3]
- Contact Person : Mr. Liu Lubin
- Company Name : Dalian Zhongsheng Metal Products Co., Ltd.
- Tel : 0086-411-39218333
- Fax : 0086-411-39218099
- Address : Liaoning,Dalian,73 Plot, Development Zone
- Country/Region : China
- Zip : 116600
Aluminum Zinc Alloy Coated Steel Sheet/Coil
DURABILTY
1. Wet state tests
Test conditions: Investigation of surface change after exposure to the atmosphere of relative humidity 100%×49 ±1 °C
Specimen | Results | ||
Attachment quantity | Coating thickness | ||
Galvalume steel sheet | 150g/m2 | 40μ(both sides) | No generation of red rust even after 35,300 hours pass |
Galvanized steel sheet | 275g/m2 | 40μ(both sides) | Generation of red rust before 6,000 hours |
Test conditions: Drying for 2 hours after exposure to smoke ×55 °C atmosphere for 22 hours…1 Cycle
After 22 days | After 75 days | After 116 days | ||||
Red rust (%) | Appearance | Red rust (%) | Appearance | Red rust (%) | Appearance | |
Galvanizedsteel sheet | 1 | Generation of red rust on the cut surface | 100 | - | 100 | - |
Al coated steel sheet | 0 | Trace of red rust on the cut surface | 10 | Generation of red rust on the cut surface | 20 | Generation of red rust on the cut surface and bends |
Galvalume steel sheet | 0 | Surface bright | 0 | Surface dark | 0 | Generation of red rust on the cut surface |
2.Salt water spray test
Test method: According to ASTM B117-73
Specimen attachment quantity | Red rust generation start time | ||
Attachment quantity | Coating thickness | ||
Galvalume steel sheet | 150g/m2 | 40μ(both sides) | 5,500 Hr |
Galvanized steel sheet | 275g/m2 | 40μ(both sides) | 300 Hr |
3. Production specification of galvalume steel sheets
Producible standards | Coating attachment quantity | Coating attachment quantity | ||
Thickness(mm) | 0.35 ~ 2.3 | AI-Zn alloy coating attachment quantity | Coating thickness μ | - Chromate treatment |
Width (mm) | 600 ~ 1,270 | 100 g/m2 | 26 | - Anti-print treatment (galva clean) |
Length(mm) | 600 ~ 5,000 | 150m2 | 40 | - Oiling |
Unit weight (Max) | 12 Ton | 200m2 | 52 | - Color resin galvalume steel sheet (cleanlume) |
Coil inner diameter (mm)) | 508 | AI-Zn alloy coating attachment quantity | Coating thickness μ | - Lubricated galvalume steel sheet |
- Transparent color galvalume steel sheet | ||||
4. Salt water spray test results
3,200Hr test
5. Outdoor exposure test(test for 13 years)
Specimen
- Galvalume steel sheet (attachment quantity 150g/m2)Unilume (Coating 150g/m2) - Galvanized steel sheet (attachment quantity 275g/m2)Galvanized (Coating 275g/m2)
Aluminum Zinc Alloy Coated Steel Sheet/Coil
