Steel is the foundation of the national economy, and almost all industries require steel. As a typical intermediate product, steel is connected to bottleneck industries such as coal, iron ore, and transportation, and to pillar industries such as automobiles, home appliances, equipment industry, construction, and machinery.
For example:
1. Machinery industry, including machine tools, heavy machinery, construction machinery, agricultural machinery, electric machinery, petrochemical machinery, special equipment, basic parts, etc. Commonly used steel includes: medium and heavy plate, round steel, cold plate, and cast iron, etc., which are widely used in construction, water conservancy, electric power, roads, mines, ports and national defense and other engineering fields, with a wide variety.
2. Construction industry, including houses, mines, railways, highways, tunnels, bridges, dams, power stations, wharves and line pipes, petrochemical industries, steel and non-ferrous metal industries, steel-structured chemical platforms, offshore oil platforms, light steel workshops and warehouses , stadiums, gate towers of toll stations, large billboards on highways... and commercial and civil buildings such as villas with light steel structures. Commonly used steel materials include: rebar, wire rod, coil screw, round steel, in addition to work, angle, groove, H-beam, shelf pipe, etc.
3. Special equipment industry, including boilers, pressure vessels (including gas cylinders), pressure pipelines and other pressure-bearing special equipment, elevators, hoisting machinery, passenger ropeways, large amusement facilities and other electromechanical special equipment. The commonly used steel materials for special equipment are steel plates, steel pipes and forgings.
4. The auto home appliance industry is a general term for the steel trade industry, including automobiles, home appliances (refrigerators and other refrigeration appliances, air-conditioning equipment, washing machines and other cleaning appliances, kitchen appliances, etc.), metal furniture (such as iron beds, cabinets, filing cabinets, etc.) , automobile and motorcycle accessories, hardware processing, security doors, etc., as well as precision instrument processing industry. Commonly used steels are: hot-rolled steel sheet, cold-rolled steel sheet, electro-galvanized sheet, hot-dip galvanized sheet, hot-dip galvanized iron alloy sheet, color-coated sheet, film-coated sheet, stainless steel, etc.
5. Steel structure industry: including steel bridges, steel workshops, steel gates, various large pipeline containers, high-rise buildings and tower-rail structures, such as steel-structured chemical platforms, offshore oil platforms, light steel workshops and warehouses, stadiums, toll stations gate towers, large billboards on expressways, commercial and civil buildings such as villas with light steel structures, outdoor advertising companies, scaffolding factories, supports for power equipment factories, etc.. Types of steel commonly used in steel structures: H-beams and medium-thick plates are the majority, as well as high-strength steels, fire-resistant, weather-resistant, seawater-resistant, layered tear-resistant, low-temperature-resistant steels, high-performance color-coated steel plates, cold-formed steels, etc. .
6. The shipbuilding industry is an industrial sector that manufactures various ships. The steel used in ship heavy industry is mainly plate, and also includes some section steel and pipe, including bulb flat steel, flat steel, channel steel, round steel, angle steel, I-beam, semi-round steel, T-beam and so on. The hull steel can be directly rolled by the steel production factory and directly supplied to the shipbuilding factory, or can be manufactured by the shipbuilding factory such as T sections and composite sections according to the needs.
The variety and amount of steel used in each industry also vary greatly depending on the nature of the enterprise.