Roofing System
GMF Hi Rib roof and wall cladding systems is available in the following base material in standard execution. Galvalume high tensile cold rolled GMF as per AS-1397 standard coating class AZ150 zinc-alumminium alloy coating mass, total of both sides, 550MPA yield strength confirming to AS-1397 standard. Galvanized steel as per IS:277 (zinc coating mass / 245 MPa yield strength).
- Tolerance: Length: 0-10mm, Cover width: 6mm
- Packing: In strapped bundles (one ton max)
- Length: Custom size upto 12Mtr.
Longer lengths are available on request.
| DATA TABLE |
Thickness of Base Metal (mm) |
Thickness of Total Coated (mm) |
Mass Per Unit Area (kg/m2) |
| Galvalume - AZ150, 550 Mpa (Bare) |
0.42 |
047 |
4.28 |
| Colour Coated Galvalume - AZ150, 550 MPa |
0.42 |
0.5 |
4.35 |
| PPGI/Z - 120 GSM, 240 MPa |
0.45 |
0.5 |
4.5 |
Technical Specification of GMF Pre-coated G.I. Steel
| Substrate |
IS 513 Cold Rolled Steel Coils |
| Tensile Strength |
240 MPa - 350 MPa |
| Galvanizing |
As per IS 277 |
| ZInc Coating |
120 GSM - 150 GSM |
| Pre Painting |
IS 14246 |
| Type of Coating |
RMP / SMP |
| Total Coated Thickness (TCT) |
0.50mm - 0.80mm |
Technical Specification of Galvalume
| Substrate |
55% Aluminium, 43.4% ZInc & 1.6% Silicon |
| Tensile Strength |
550 MPa |
| Coating Strength |
As per IS 1397 - 1993 |
| Coating Mass |
AZ 150 |
| Base Metal |
High Tensile Steel |
| Total Coated Thickness (TCT) |
0.47mm - 0.60mm |
