Hot-rolled and bent channel correspond to this type of metal product. Channel is a metal product with P(П)- type cross-section. Channel is mostly produced from metal slabs through mills. Channels are separated into the following categories:
Hot-rolled steel channels.
This type of channel is produced according to GOST 535-88 with parallel flanges and sloping flanges: 10, 10P and etc. The slope of inner flanges must not exceed 10%.
Assortment of the steel hot-rolled channel corresponds to GOS 8240-89.
The number of the channel corresponds to its size (distance between the inner flanges) expressed in cm. For example: Channel #10 - distance between the inner flanges equals 10cm. All other parameters: flange width, wall thickness and etc. according to GOST (shown in the GOST catalogue).
Channel that has letter A at the end of the number (14A) is a channel with sloping inner flanges, it means the flanges are wider and hence the weight of each meter is larger than ordinary channel.
There are special types of hot-rolled channel:
special channel for automotive industry - GOST 19425-74 (18S, 20S);
special channel for wagon production - GOST 5267.1-90 (8W, 14W, 18W).
Bent steel channel (equal and non-equal flanges):
Steel bent channels (profiled bent channel) is produced according to GOST 11474-76 on channel profiling machines from cold-rolled and hot-rolled steel of ordinary, carbon and high quality constructional or low alloyed steel.
Channel assortment corresponds to:
equal flanges - GOST 8278-89;
non-equal flanges - GOST 8281-80.
The numbers of such type of channels correspond to its size, represented in mm.
For example: 40x32x2.5, where 40 - in the distance between the flanges (mm), 32- width of the flange (mm), 2.5 - wall thickness (mm).
Bent angle differs from rolled angle by rounded sides, judged by visual inspection.
|Name||Size||Length||Weight 1 pc/kg|
|Steel сhannel, GOST 535||6.5||11.7||70|
|Steel сhannel, GOST 535||8||11.7||85|
|Steel сhannel, GOST 535||10||11.7||105|
|Steel сhannel, GOST 535||12||11.7||127|
|Steel сhannel, GOST 535||14||11.7||153|
|Steel сhannel, GOST 535||16||11.7||175|
|Steel сhannel, GOST 535||18||11.7||203|
|Steel сhannel, GOST 535||20||12||230|
|Steel сhannel, GOST 535||22||12||265|
|Steel сhannel, GOST 535||24||12||306|
|Steel сhannel, GOST 535||27||12||352|
|Steel сhannel, GOST 535||30||12||394|
|Steel сhannel, GOST 535||40||12||600|