|
 |
 |
| galvanized steel coils |
zinc coated steel coils |
|
| Coatings |
| Designation |
Coating weight - |
Coating thickness |
| EN 10326 - EN 10327 |
Double sided (g/m²) |
(µm per side) |
| AZ100 |
100 |
13 |
| AZ150 |
150 |
20 |
| AZ165 |
165 |
23 |
| AZ185 |
185 |
25 |
| AZ200 |
200 |
26 |
| Coating thickness for indication |
|
| |
| Steel Grades |
| Steel for bending and deep drawing applications |
| Designation |
Re |
Rm |
A80 |
| EN 10327 |
(N/mm²) |
(N/mm²) |
(%) |
| DX51D+AZ |
>= 140 |
270 - 500 |
>= 22 |
| DX52D+AZ |
140 - 300 |
270 - 420 |
>= 26 |
| DX53D+AZ |
140 - 260 |
270 - 380 |
>= 30 |
| DX54D+AZ |
140 - 220 |
270 - 350 |
>= 34 |
| DX56D+AZ (HFX)* |
120 - 180 |
260 - 330 |
>= 39 |
|
Measurements transverse to rolling direction. When thickness t < 0.7 mm, A80 should be decreased with 2%
|
|
* Steel grade not mentioned in the standard
|
| |
| Structural Steel |
| Designation |
Re |
Rm |
A80 |
| EN 10326 |
(N/mm²) |
(N/mm²) |
(%) |
| S220GD+AZ |
>= 220 |
>= 300 |
>= 20 |
| S250GD+AZ |
>= 250 |
>= 330 |
>= 19 |
| S280GD+AZ |
>= 280 |
>= 360 |
>= 18 |
| S320GD+AZ |
>= 320 |
>= 390 |
>= 17 |
| S350GD+AZ |
>= 350 |
>= 420 |
>= 16 |
| S380GD+AZ* |
>= 380 |
>= 450 |
>= 22 |
| S420GD+AZ* |
>= 420 |
>= 500 |
>= 21 |
| S550GD+AZ |
>= 550 |
>= 560 |
- |
|
Measurements in rolling direction. When thickness t < 0.7 mm, A80 should be decreased with 2%
|
|
* Steel grade not mentioned in the standard
|
|
| Dimensions |
|
Thickness (mm)
|
Width (mm)
|
|
0.20 - 2.00
|
700 - 1500
|
|
| Protection - surface treaments |
|
Designation
|
Definition
|
E-Passivation
O
Easyfilm E
|
Chromium-free chemical passiavtion
Oiling
Passivation and oiling
Environment-friendly thin organic coating
(chromium-free, complying with European directives)
|
|
|
|
The technical informations above respond to the extreme feasibilities of Aahana International's installations. Some extreme combinations may not be available. It is therefore recommended to consult us in these cases when specific dimentions, packaging, finishing etc. are requested.
|
|
Technical Data Sheet
|
| Type |
Continuous hot dip coating
Double-sided coating
|
| Properties |
Excellent corrossion resistance
Very attractive appearance
Excellent thermal and light reflectivity
Good abrasion resistance
|
| Application |
Construction
|
Roofing, cladding, profiling, tiles etc.
|
| |
General industry
|
Housings, cabinets and cases for air conditioning, computers, pirpes, electrical equipment etc.
|
| |
Appliances
|
Washing machines, tumble dryers, refrigerators, ovens, toasters etc.
|
|
| Description |
Composition
|
Aluminium (55%)
Zinc (43.4%)
Silicon (1.6%)
|
|
| |
Structure
|
Bi-phase structure, with grains of aluminium and zinc
|
|
| |
Bulk density
|
3750 kg/m³
|
|
| |
Aspect
|
Bright silvery metallic spangle
|
|
| |
Aspect durability
|
Good
Excellent with Easy film
|
|
| Performances |
Edge protection
|
Very good
|
|
| |
Surface protection
|
|
|
| |
Salt spray test, corrosion resitsance (ISO 7253 / DIN 50021)
|
50 hours/µm
|
|
| |
Outdoor exposure corrosion resistance
|
Marine
|
0.6 µm/year
|
| |
|
Industrial
|
0.3 µm/year
|
| |
Adhesion
|
0 T (AZ100, AZ150)
|
|
| |
(Resistance to cracking on bending for DX51D+AZ reference) (EN 10327)
|
1 T (AZ185)
|
|
| |
Hardness on cross section
|
140 HV
|
|
| |
(Vickers, 5g)
|
100 HV for HFX grade
|
|
| |
Refelction of solar heat
|
New
Aged
|
81%
39%
|
| |
Heat transmission
|
65 Watts/m²
|
|
| |
Temperature resistance T max
|
315°C
|
|
| |
Fire resistance
|
European standard (EN 13501-1)
French standard (FD P92-507)
British standard (BS 475)
|
A1
M0
AA
|
| Remarks |
The performance indicated are averages and may vary in particular according to the type of support used.
These data are not contractual and may be amended in line with technological progess related to the product.
|
|
This is hot or cold-rolled steel with a zinc coating applied by a continuous hot-dip galvanising process, which gives excellent corrosion resistance and very good formability.
It is produced with a very wide range of qualities: mild steels for bending and drawing, structural steels, and steels with a very high yield strength.
It is available as sheet or coiled steel in thicknesses from 0.20mm to 6.35mm and widths from 80cm to 188cm depending on the substrate used.
Coating thicknesses range from Z100 to Z350.
It is joined by welding, clinching or adhesive bonding.
Options: Surface appearance, finished surface, passivation, oiling.
Can be protected by a thin dry organic film.
Properties
Our hot dip galvanised steels consist of a steel substrate with a metallic zinc coating applied by means of a continuous hot dip galvanising process. Metallic zinc coatings are available in steel grades ranging from steel for bending and deep drawing applications, to structural steels and high yield strength steels.
A glossy surface finish obtained under specific skin-pass conditions (either non-skin-passed or skin-passed with smooth cylinders to obtain low roughness) can be provided if required at time of enquiry.
Advantages
Hot dip galvanised products offer excellent corrosion resistance combined with very good forming properties. The coating process can apply very thick zinc layers, up to 725 g/m?(total of both sides).
Applications
Our hot dip galvanised steels can be used in a very wide range of applications for industrial markets, both indoors and outdoors. Some of the most common applications are:
Building: wide sections for roofing and cladding, doors, door frames, metallic ceilings, partitions, structural members etc
Domestic appliances: all appliances for this sector (both white and brown goods) are manufactured with hot dip galvanised steels
Miscellaneous: electrical cabinets, aeraulic components, air conditioners, road signs etc
Zinc hot dip galvanised steel is suitable for contact with foodstuffs under certain conditions, as specified in European directive 89/109/EEC and French standard NF A 36-712-1. Please contact us for further information on this subject.
Recommendations for use
Storage
Galvanised strips are usually supplied passivated or oiled to temporarily limit any risk of white rust formation. During transport and storage, all necessary precautions must be taken to keep the material dry and to prevent the formation of condensation. Improved protection can be achieved by the application of an Easyfilm® thin organic coating (please see data sheet E80 for the specific properties of Easyfilm®).
Forming and joining
The forming and joining techniques currently used for uncoated steel are also suitable for galvanised steel.
It is essential to select a coating thickness that is compatible with the forming and joining processes envisaged, without compromising the desired degree of corrosion protection.
Painting
Hot dip galvanised steels can be painted after degreasing and surface treatment when supplied oiled. If an Easyfilm® thin organic coating has been applied, they can be painted directly, without any prior surface treatment. However, the paint must be compatible with the Easyfilm® resin.
Weldability
In electrical resistance welding, the welding current must be suitably regulated and regularly adjusted. Electrode life can be extended by regularly stepping up the welding current and periodically dressing (machining) the electrodes.
more detail
|
Products