C section purlins or cee section purlins are designed to form the walls and floor joists of a building shell structure, making them also ideal for supporting beams needed for mezzanine flooring. In addition, our C section purlins can also be used for door framing, roof trimming, window trimming, parapet rails and side rails (also see Z purlins page).

All of our C section purlins have equal extensions on their sides, meaning they can be used in single spans. They are freestanding and stable, allowing them to be handled with ease whilst being installed and still providing stable structural support.

GALVANISED C & Z PURLIN

C and Z sections are roll formed from high tensile zinc-coated steel. The cold roll forming process used in the manufacture of these sections ensures a high degree of consistency and accuracy in dimensions of the formed sections.

GALVANISED STEEL C SECTION

The C-sections are normally used as simply supported. Sections of sufficient length may also be used continuously over 2 or more spans to reduce deflection.

GALVANISED STEEL Z SECTION

The Z sections are all roll formed with one broad and one narrow flange. These flanges are proportioned so that two sections of the same size, when one is rotated 180′, can be end lapped.

These lappings of the Zed sections over interior supports a multi-bay buildings produce a structurally continuous line of purlins or girts throughout the length of the building.

The dual thickness of material over the interior supports increases the capacity of the sections to resist bending moments as well as improving the load capacity and stiffness of the system.

Galvanized Metal Steel Frame C Section Purlin for Roofing Support

What's C purlins?

  C channel is made of galvanized steel strips by the method of cold-bending formed. The surface treatment is galvanized or bared. It has many advantages compared with traditional structural steel, such as light weight, excellent performance cross-section, high-strength and so on.

  C profiled steel is the best materials in the large and small buildings.

  C purlins are automatically processed by the C-beam equipment forming. Forming machine called C shaped steel can be done automatically according to the given size of C-shaped steel C-shaped steel forming process.

  C cold-formed steel was processed by the hot coil, thin wall and light weight 96-757, section excellent performance, high strength, compared with the traditional channel, the same material strength can save 30%.

beam scope: C-beam construction is widely used in steel purlins, wall beams, it can also be combined into its own lightweight roof trusses, brackets and other building components. In addition, light manufacturing machine can be used in the columns, beams and arms and so on.

Advantages

(1) Design according to customers' requirements

(2) Manufacture under complete quality certification system--ISO9001

(3) Installation with instruction of experienced engineers

(4) Easy to assemble and dismantle

(5) Eco-friendly material: Used for several times and be recycled

(6) Shorter construction period, longer using time

(7) High strength and stiffness, high weight bearing.

Product applications

It is used widely as purlin and wall beam on steel structure construction. Also it can be combined into a light weight roof truss, brackets, etc. In machinery light manufacturing, C purlin can also be made into Column, beam or arm limb, etc.

s fabricators, we do a lot of work with structural steel and aluminum. It’s used extensively in trailers and also makes a great wood substitute for construction. The I-beam is about the most recognizable structural shape, but we’d argue that there are times when you’re better off with a ”C”. Here’s why we think C-channel (or alternatively, C-beam or C-section) is worth considering.

Strength-to-Weight

Elephants are strong but dung beetles are much stronger. Sure, the elephant can carry a bigger total weight, but much of its strength goes towards carrying itself. The dung beetle is small but can carry many times its own weight.

Structural steel and aluminum work the same way. A big heavy piece is strong but the geometry of an I-beam is optimized to get the greatest possible strength from the least amount of material. In the I-beam the vertical web resists bending while the top and bottom flanges counter any twisting. (If the flanges are wider than the height of the web it becomes an H-beam. It’s all down to the cross-sectional shape.)

Meet C-Section Channel

While I-beams are strong, they’re not always easy to incorporate into your fabrication. The problem is that you only have two parallel faces to mount to. Mounting to a face parallel to the web means adding angle to the flanges. C-section channel overcomes this by moving the web out to one edge of the flanges, changing the cross-section from an “I” to a “C” in the process.

C-section thus has three flat surfaces for mounting to. It’s still strong, although this geometry does give up a little of the rigidity of the I-beam. Against that, though, it avoids the use of brackets or angle. That saves money, time and weight, perhaps making it worth moving up to a slightly heavier section.

Other Advantages

Structural aluminum is lightweight and easy to work with, plus, unlike wood, it won’t burn. That makes it a good alternative to lumber for framing walls or installing ceiling joints and rafters. Also, being an open section unlike tube material, it’s easily washed clean and drains quickly and easily rather than retaining moisture.

Applications

Most trailers are fabricated with aluminum C-section channel for the structural members. It’s lightweight, easy to cut and drill and doesn’t corrode. Plus, three flat faces simplify the addition of panels or other structural components. It’s particularly popular in boat trailers where the ease with which it’s washed down and absence of moisture-retaining areas help ensure a long life. Window and door frames are often fabricated from C-section channel for similar reasons.

Also, as mentioned above, aluminum C-section channel is often used in construction. It’s a particularly good choice where fire is a greater than normal concern.

See? It Doesn’t Have to Be I-Beam

Say, “structural aluminum” or “structural steel” and we’ll wager most people picture the traditional I-beam. It’s a shape that’s met the needs of fabricators as well as those in construction for generations, but sometimes it makes assembly more complicated than perhaps it need be. That’s why we suggest you consider C-section channel, (or C-beam, whatever works for you). With an additional flat face, C-section material might simplify your design and save you time and money.

Channels are standardized channel section. The hot rolled execution has conical flanges, while the laser fused has parallel ones. Both their tolerances are defined by ASTM A 484, the laser fused execution has additionally the product standard defined by ASTM A1069.

Channels in stainless steel are used in commerce and industry but also in machinery and equipment building. The use of stainless steel profiles is characterized by a high flexibility of composition and a fast and cost reduced construction (through the possibility of prefabrication in the steel production). Stainless steel profiles are produced mainly from scrap and can be recycled again after utilization so new resources can be conserved.

These cold formed structural channel sections are manufactured from high tensile Z39 steel, are pre-galvanised so no additional finish is required and satisfy the requirements of BS5950: Part 5 (1998). Their high strength to weight ratio enable practical substitution for hot rolled steel sections whilst easing installation and site handling.