SECONDARY STEEL MEMBERS – COLD FORMED “Z” & “C” PURLINS
DANA Z & C purlins are designed as secondary beam supports for roofing and cladding sheets, insulated panels and liner trays, for spans up to 10.0m. These purlins can be joined employing the overlap or sleeved system.We have a fully automatic production line for making holes/slots as per customer’s drawings.
The metal thickness varies from 1.5mm to 3.0 mm. Sleeves are used to join purlin above frames, where as 6 to 8 mm cleats and 16mm bolts are usually used to connect this profile to building frames.
The section reference of a Z-Section 202mm deep and 2.5mm thick=202 Z25. The first three digits of section reference indicate the depth of the section in millimeters (ie: 202 equals 202mm depth). The fourth digit is a letter that signifies the profile type(i.e: Z for Z profile & C for C profile). The last two digits indicate the material thickness ( i.e: 25 equals 2.5mm).
ASTM A653 Grade 50 (New ASTM Standard)
ASTM A446 Grade ‘D’ G90 (Old ASTM Standard)
EN 10147 S350GD Z275 MAC