Lanwa Purlins

Home > Lanwa Purlins
We customize production to
match your specific requirements

Why Choose
Lanwa Purlins?

We customize production to match your specific requirements in plate thickness, geometry, Punching and sleeve connection.
View Video

‘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