You will need
- - calculation length;
- - calculation of width;
- - selection category;
- - calculation of weight.
Hot rolled steel channels are of two types – special and General purpose in height from 50 to 400 mm. flange Width can be from 32 to 115 mm. If you plan to do beam floor for installation of floor or ceiling, pick the width of the shelves steel channel depending on the width of a set of beams with smooth parallel faces.
The length of the channel should correspond to the length of the cover openings. Add to the calculated number of 70 cm on each side of the slab. To install the secondary beams suitable steel channel, made in accordance with GOST 8240-8 stamps 16A, extreme beam – 14A. Precision rolling should correspond to the group B is a metal of high accuracy. And applies to high precision rolling, In – the usual precision.
The channel made from low alloy steel used to build lightweight structures. Manufactured according to GOST 11474-76 forming machine with rounded external angle. For installation of bearing structures of this type of metal is not suitable.
For the automotive industry, choose a channel, made according to GOST 19425-74 20 or 18S. The metal has S-shaped form and is widely used in the manufacture of automobile frames.
If you buy the channel for carriage building, choose an 8, 14 or 18V, manufactured according to GOST 5267.1-90. This is a special type of metal, which is made for the construction of the cars.
To calculate the required number of channel, use a metal calculator. Enter the required parameters in the appropriate fields, hover over the box "Calculate". You will get the exact amount that you need to buy. But in any case, make the purchase with a small margin, so you don't have extra time to pay for the shipping.