C Purlin/C Steel Beam/ C Section Steel/ C Shaped Steel

Model NO.
SUPER-Steel Purline
Hole Drilling
Hole Size
Hole Position
Transport Package
Standard Sea Worthy Packing
HS Code
To be able to give you benefit and enlarge our business, we also have inspectors in QC Team and assure you our greatest service and products for C Purlin/C Steel Beam/ C Section Steel/ C Shaped Steel, The product will supply to all over the world, such as: Moldova, Kuwait, California, Our products are mainly exported to Southeast Asia, the Middle East, North America and Europe. Our quality is surely guaranteed. If you are interested in any of our products or would like to discuss a custom order, please feel free to contact us. We are looking forward to forming successful business relationships with new clients around the world in the near future.
Hangzhou Super Import and Export Co., Ltd. Diamond / Audited Supplier

Product Description

Light-gauge cold-formed steel roof purlins replace heavier hot-rolled steel angle and channel sections. 
A purlin is a secondary structural member that spans between the primary/main steel frame to support the roof cladding. The purlin transfers load from the roof cladding to the primary steel rafters. Similarly, a side rail is a secondary structural member that spans between the primary/main steel frame to support the wall cladding and transfer load from the wall cladding to the primary steel columns. Both purlins and side rails are used to provide restraint to the primary steel frame members. Light gauge cold-formed steel roof purlins are used on a wide range of building types including retail and leisure, industrial, warehouses and distribution, healthcare and education. 

Standard Size

C purlin H(mm) B(mm) B(mm) C(mm) T(mm)
C80 80 40 40 15 2.0-3.0
C100 100 50 50 20 2.0-3.0
C120 120 50 50 20 2.0-3.0
C140 140 50 50 20 2.0-3.0
C150 150 60 60 20 2.0-3.0
C160 160 60 60 20 2.0-3.0
C180 180 60 60 20 2.0-3.0
C200 200 60 60 20 2.0-3.0
C250 250 70 70 20 2.0-3.0
Z purlin H(mm) B(mm) B(mm) C(mm) T(mm)
Z100 100 55 50 20 2.0-3.0
Z120 120 55 50 20 2.0-3.0
Z140 140 55 50 20 2.0-3.0
Z150 150 67 61 18 2.0-3.0
Z160 160 67 61 20 2.0-3.0
Z180 180 67 61 20 2.0-3.0
Z200 200 67 61 20 2.0-3.0
Z250 250 78 72 20 2.0-3.0
Z280 280 78 72 20 2.0-3.0
Z300 300 78 72 20 2.5-3.0

Cold Roll Forming
Cold-formed steel roof purlins and side rails are manufactured from pre-galvanised steel strip, in the form of coils, which have been slit to the desired width from the parent or “wide coil” supplied from the mills. 
The purlin is formed gradually by feeding the strip continuously through successive pairs of rolls, which act as male and female dies. Each pair of rolls progressively forms the strip until the finished profile is produced. For example, five to eight “stages” or “passes” will be needed to form a lipped Z purlin, depending on the thickness of the material. More complicated profiles will require 15 or more passes. 
The strip is pre-pierced and cut to length in-line, prior to roll-forming. 
The principal advantage of cold roll-forming, compared with other methods of fabrication, is the high production capacity achieved. Sections produced by cold roll-forming are essentially uniform in cross section and can be manufactured to very close dimensional tolerances. 
In building uses, the most common and simplest of profiles are the lipped Z and C sections – both defined by a central vertical web joined to horizontal flanges at either end. Additional lips are included because unstiffened, wide, thin plates are unable to resist significant compression and the flanges become inefficient. 
Z sections are usually installed with the top flange pointing up the roof slope so that the load is applied through the shear centre and serious twisting of the sections does not occur. 
Cold-rolled steel purlins are manufactured from hot-dipped galvanised steel, generally with a yield strength of 450N/mm².

• They are cost effective in comparison to heavier, hot-rolled steel angle and channel profiles
• They have a high strength-to-weight ratio
• Long spans of up to 15m are possible
• Pre-galvanised sections provide longer-term durability
• Material is delivered to site pre-punched and cut to length
• They are lightweight and are easy to handle and construct
• Steel is 100% recyclable.

Our Projects

Othe shape purlin