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Carbon steel grating Q235 is made of flat steel and cross bar (fried dough twist steel, round steel or flat steel) welded and fixed at a certain distance. The surrounding can be the same specification as the bearing flat steel, or different specifications can be used for edge wrapping according to the user's requirements. The specification and model of carbon steel grating are different, and the price is different. Various specifications and models are available.
In order to prevent corrosion in advance, the surface of carbon steel grating can be hot galvanized, cold galvanized and painted. Different surface treatment methods have different prices. Among them, hot galvanizing treatment is a good treatment method and is also commonly used. The price is slightly higher than that of other surface treatments.
Specification and model of carbon steel grating
If fried dough twist steel is used for the cross bar of carbon steel grating, it is indicated by the letter "W"; The cross bar can also be made of flat steel, represented by the letter "L".
1、 The cross bar is made of fried dough twist steel and the carbon steel grating is divided into three series:
★ Series 1 (spacing 30mm) steel grating is a common type of products used in various industrial fields. The center distance of loaded flat steel of this series of steel grating is 30mm, which conforms to the standard. In the whole steel grating series, it has strong resistance to surface impact. It is widely used in power plants, refineries, sewage treatment plants, granaries, chemical plants, highways, airports, docks and other platforms, walkways and drainage ditch covers, stair steps and so on. The toothed steel grating can be used in wet and greasy places, especially for offshore oil production platforms.
★ Series 2 (spacing 40mm) steel grating is an economical and portable type, which conforms to the specifications of fixed platforms, walkways and stairs specified in the standard. In the case of small span, it is an ideal product. Even under the load of transport equipment walkways, it is no exception. It can also be used as shelves of warehouses, panels of pavilions, trestles, protective fences, sun curtains, etc.
★ series 3 (spacing 60mm) steel grating is a variety developed especially for the application of mining industry, which solves the problem of mineral splashing on the plate surface. This series of steel gratings has a nominal size of 50 * 60MM, allowing most of the splashed materials to pass through and fall, so that the plate surface is clean and safe. This product is often designated for use in the plate surface of the crushing system, the walkway on the conveying line, the ball mill, the processing plant and the operation station.
2、 The cross bar is made of flat steel and carbon steel grating
The spacing is 30 / 30 40 / 40 50 / 50 30 / 40 30 / 50 30 / 100 40 / 100 50 / 100 and so on. The load-bearing capacity of this carbon steel grating is relatively large, and the price is also higher than that of the cross bar fried dough twist steel. It is widely used in civil and commercial buildings, theatres, subways, urban railways, factory halls, theatres, shopping malls, ceiling or interior decoration and other municipal engineering fields. It can also be used in platform walkways, ventilation windows (wells), advertising plaques, various covers, etc.
Weight of carbon steel grating
Calculation basis for weight of carbon steel grating: WT = (b1t1n1 + b2t2n2 + 2b3t3) ρμ× The weight of 10-6 carbon steel grating can be divided into center distance and net hole. The weight calculated according to the center distance is generally used in some places with strict requirements. It is less used and the price is relatively high. The clean hole can also meet the load-bearing demand of the site, and the price is relatively low and it is often used.
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