Why Choose Lanwa Purlins?
We customize production to match your specific requirements in plate thickness, geometry, Punching and sleeve connection.
Lanwa Purlins
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We customize production to
match your specific requirements
match your specific requirements
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Product Specifications
Technical Specifications
‘C’ Purlin
| H (mm) | B (mm) | A (mm) | Thickness (mm) |
| 100* | 50 | 14 | 1.6/2.0/2.5 |
| 125 | 50 | 14 | 1.6/2.0/2.5 |
| 150 | 50 | 16 | 1.6/2.0/2.5 |
| 150* | 65 | 20 | 1.6/2.0/2.5 |
| 200 | 52 | 18 | 1.6/2.0/2.5 |
| 250 | 65 | 18 | 2.0/2.5 |
| 300 | 80 | 18 | 2.0/2.5 |
‘Z’ Purlin
| H (mm) | B 1 (mm) | B 2 (mm) | A (mm) | Thickness (mm) |
| 100 | 47 | 55 | 14 | 1.6/2.0 |
| 150 | 45 | 52 | 16 | 1.6/2.0/2.5 |
| 200 | 47 | 55 | 18 | 1.6/2.0/2.5 |
| 250 | 63 | 70 | 18 | 2.0/2.5 |
| 300 | 90 | 82 | 18 | 2.5/3.0 |
| 172 | 55 | 50 | 15 | 2.0 |
| 232 | 75 | 70 | 17 | 2.0 |
* Standard length of 5.8m is available for 1.6mm and 2.0mm thickness
| Material description | Hot dipped, Zinc coated structural grade, high tensile steel , guaranteed minimum yield strength of 365 MPa, chromate passivated, suitable for roll forming, material to be consistent quality in respect of surface conditions, edge conditions, shape and mechanical properties. |
| Material standard | ASTM A 653 |
| Base metal | High strength steel / structural grade |
| Grade of steel | 350 MPa min / YS - 350 MPa & TS – 480 MPa, Elongation – 10% |
| Zinc coating | Z220 and above ( Min. 220 g/m2 total on both surfaces ) |
| Passivation | Chromate Passivation |
| Oiling | Not required |
| Surface conditions | Skin passed and not very shiny. No dents, scratches and other marks on the surface. |
| Edge camber | 0.2 % (as per AS 1365 ) |
| Flatness (Steepness) | 0.5 % ( as per AS 1365 ) |
| Width tolerances | -0 mm, + 2.0 mm |
| Welds | No welds |
| Edge conditions | Coils to be tightly wrapped free from stagger. Dished or telescoped coils greater than 15 mm are not accepted. |
| Coil thickness | 1.6mm , 3.0 mm |