Carbon steel plate: a basic and practical steel category
Release time:
2025-09-26
Carbon steel plate is an iron-based steel with a carbon content ranging from 0.0218% to 2.11%. Due to its simple composition and mature production process, it has become a widely used basic steel material in the industrial sector. It can be further categorized by its core properties: in terms of carbon content, in addition to low- and medium-carbon steel plates (carbon content ≤ 0.45%) and high-carbon steel plates (carbon content > 0.6%), there are also medium- and high-carbon steel plates (carbon content 0.45%-0.6%), which combine strength and plasticity. By thickness, it can be divided into thin plates (thickness < 4mm), medium plates (4-20mm), thick plates (20-60mm), and extra-thick plates (> 60mm), suiting different load-bearing and processing requirements.
Carbon steel plate is an iron-based steel with a carbon content ranging from 0.0218% to 2.11%. Due to its simple composition and mature production process, it has become a widely used basic steel material in the industrial sector. It can be further categorized by its core properties: in terms of carbon content, in addition to low- and medium-carbon steel plates (carbon content ≤ 0.45%) and high-carbon steel plates (carbon content > 0.6%), there are also medium- and high-carbon steel plates (carbon content 0.45%-0.6%), which combine strength and plasticity. By thickness, it can be divided into thin plates (thickness < 4mm), medium plates (4-20mm), thick plates (20-60mm), and extra-thick plates (> 60mm), suiting different load-bearing and processing requirements.
Its core characteristic lies in its "balanced cost-performance": strength increases with increasing carbon content. Low- and medium-carbon steel plates have good plasticity and can be processed into various components through stamping and welding, such as automobile door frames. High-carbon steel plates have higher hardness and are suitable for wear-resistant parts such as machine tool guide rails. In terms of production, hot-rolled carbon steel plate is formed through high-temperature rolling, resulting in a slightly rough surface but high strength. It is primarily used in construction and engineering machinery. Cold-rolled carbon steel plate, on the other hand, is rolled at low temperatures, resulting in a smooth surface and high dimensional accuracy. It is commonly found in home appliance housings and precision parts. Furthermore, carbon steel plate raw materials are readily available, and the production cost is only one-third to one-half that of stainless steel, making it particularly advantageous in applications where corrosion resistance is less critical.
Applications span a wide range of sectors: The construction industry uses medium and thick plates to make steel structure brackets and load-bearing beams for factory buildings. In machinery manufacturing, low- and medium-carbon steel plates are processed into gears and bearing seats, while high-carbon steel plates, after quenching, can be made into saw blades and molds. In the automotive industry, thin plates are used to produce vehicle frames and chassis, while thick plates are used for truck frame crossmembers. However, carbon steel plate is susceptible to rusting due to environmental humidity, and is typically treated with anti-rust treatments such as painting and galvanizing. For outdoor use, spray coating can also be used to enhance weather resistance. For parts requiring high precision, heat treatments such as carburizing and tempering are also used to increase surface hardness and toughness, extending service life. Compared to similar materials, carbon steel plate offers significant advantages: While less corrosion-resistant than stainless steel, it offers comparable strength in dry environments at room temperature and is less expensive. Compared to aluminum alloy, it has a higher density (approximately 7.85g/cm³ vs. 2.7g/cm³), but also boasts higher tensile strength, making it suitable for heavy-duty applications. However, in sectors with a strong demand for lightweighting, such as aerospace, carbon steel plate is less widely used due to its weight disadvantage.
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Carbon steel plate: a basic and practical steel category
Carbon steel plate is an iron-based steel with a carbon content ranging from 0.0218% to 2.11%. Due to its simple composition and mature production process, it has become a widely used basic steel material in the industrial sector. It can be further categorized by its core properties: in terms of carbon content, in addition to low- and medium-carbon steel plates (carbon content ≤ 0.45%) and high-carbon steel plates (carbon content > 0.6%), there are also medium- and high-carbon steel plates (carbon content 0.45%-0.6%), which combine strength and plasticity. By thickness, it can be divided into thin plates (thickness < 4mm), medium plates (4-20mm), thick plates (20-60mm), and extra-thick plates (> 60mm), suiting different load-bearing and processing requirements.
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