The swage locked grating is called the steel frame, the steel grating is to use steel according to certain spacing and cross arrangement, and welding for steel products with square lattice in the middle, mainly used to do ditch cover and steel platform plate, steel ladder step plate. The bar after the general use of twisted steel.
The steel grating plate is usually made of carbon steel, and the appearance of hot galvanizing can prevent the oxidation. It can also be made of stainless steel. The steel grid plate has the performance of ventilation, lighting, heat dissipation, antiskid, explosion proof and so on.
Standard for the production of steel grating (China's latest plate in 2007)
swage locked grating Standard YB/T4001.1-2007 standards; and the United States, Britain, Australia, and New Zealand have their respective standards. The steel standard is based on GB700-88, GB1220-92
1: high strength, light weight
2: strong anticorrosion and durable
3: beautiful appearance, bright surface
4: do not accumulate dirt, not rain snow, not water, self clean, easy maintenance
5: ventilation, lighting, heat dissipation, skidproof and good explosion-proof
6: easy to install and disassemble
1. longitudinal spacing: conventional 30, 40, 60 (mm), and non - standard spacing: 25, 34, 35, 50, etc.
2. bar spacing: 50, 100 conventional (mm); and non-standard spacing: 38, 76.
3. wide: 20-60 (mm);
4. thick: 3-50 (mm).