Purlins is secondary structural members used to support the wall and roof panels. Purlins is used on the roof & wall .Secondary members have two other functions: they act as struts that help in resisting part of the longitudinal loads that are applied on the building such as wind and earthquake loads, and they provide lateral bracing to the compression flanges of the main frame members thereby increasing frame capacity. Available in thicknesses ranging from 1.5 mm to 2.5 mm and is in accordance with ASTM A653 Grade CS50, Pre-Galvanized.

Cold-Formed “Z” Sections

Formed-z

Technical Specification

  SECTION DIMENSIONS WEIGHT

KG/M

 AREA

mm2

 SECTION PROPERTIES
H T F1 F2  Ix cm4 Sx cm3 Iy cm4 Sy cm4
Z 160 160 1.5 55 50 3.55 418 160.92 20.45 22.33 3.890
Z 160 160 2.0 55 50 4.34 553 211.55 26.92 29.13 5.096
Z 160 160 2.5 55 50 5.38 686 260.03 33.09 35.57 6.250
Z 180 180 1.5 55 50 3.51 447 211.64 23.90 22.33 3.895
Z 180 180 2.0 55 50 4.65 592 278.57 31.48 29.11 5.099
Z 180 180 2.5 55 50 5.78 736 343.74 38.84 35.58 6.260
Z 200 200 1.5 55 50 3.77 477 271.80 27.61 22.34 3.900
Z 200 200 2.0 55 50 4.96 632 358.05 36.37 29.12 5.105
Z 200 200 2.5 55 50 6.16 776 442.17 44.90 35.59 6.260

Cold-Formed “C” Sections

Formed-c

Technical Specification

  SECTION DIMENSIONS WEIGHT

KG/M

 AREA

mm2

 SECTION PROPERTIES
H T FI L  Ix cm4 Sx cm3 Iy cm4 Sx cm4
160C15 160 1.5 55 15 3.39 435 168.15 21.02 17.08 11.04
160C20 160 2.0 55 15 4.5 573 220.37 27.55 22.04 14.24
160C25 160 2.5 55 15 5.6 709 269.77 33.72 26.52 17.16
180C15 180 1.5 55 15 3.7 462 221.12 24.57 17.61 12.15
180C20 180 2.0 55 15 4.8 612 290.08 32.23 22.72 15.66
180C25 180 2.5 55 15 6.0 759 356.71 39.73 27.47 18.91
200C15 200 1.5 55 15 3.86 493 283.91 28.39 18.14 13.28
200C20 200 2.0 55 15 5.12 652 372.79 37.28 23.40 17.12
200C25 200 2.5 55 15 6.35 809 458.84 45.88 28.30 20.64