S45C is widely used in mechanical manufacturing, often for parts requiring high strength, such as gears, shafts, and piston pins. It is also suitable for manufacturing low-stress machined parts, forgings, stampings, as well as bolts, nuts, and pipe fittings. Furthermore, after quenching and tempering, S45C can be used to manufacture mechanical parts such as gears, connecting rods, and machine tool spindles.
Other common grades:
A36 steel, a low-carbon steel, is renowned for its excellent machinability, plasticity, and weldability. Its key component is carbon, which makes up 25%, along with manganese, sulfur, and phosphorus. A36 steel offers not only high toughness and strength, but also excellent machinability, albeit with slightly lower corrosion resistance. This steel is widely used in various industries, including construction, oil and gas pipelines, shipbuilding, mechanical manufacturing, and the automotive industry.
1018 steel, a common carbon steel, is commonly used in the manufacture of mechanical components. Originating in the United States, it shares a similar chemical composition with domestic 16Mn, 15Mn, and 20Mn grades, but differs in manganese content. 1018 steel also has specific applications in mechanical manufacturing.
As a high-manganese, low-carbon, permeable steel, 1018 steel exhibits excellent machinability and plasticity. It is widely used in the manufacture of various parts and components, such as bearings, screws, nuts, self-tapping screws, and automotive parts. It is also used to create metal components subject to static loads, mechanical parts that do not require heat treatment, and general welded parts. Similarly, 1018 steel is suitable for lower-strength welded parts, cold stamped parts, forgings, and carburized parts, such as bolts, washers, spacers, and housings.
1045 steel, a medium-carbon steel, boasts higher strength and hardness than 1018 steel and is therefore often used in products requiring higher hardness, such as blades. Meanwhile, 4140 steel, a high-strength, low-alloy steel, boasts excellent strength and hardenability due to its inclusion of chromium, molybdenum, and manganese. It is not only highly tough but also exhibits high fatigue strength, wear resistance, and impact resistance, making it widely used in a wide range of industries.
1045 and 4140 steels play a key role in a variety of critical industries, including aerospace, oil and gas, automotive, agriculture, and defense. For example, they are often used to manufacture forgings such as gears, spindles, fixtures, clamps, shafts, and conveyor parts, as well as components such as crowbars, well logging parts, sprockets, studs, pinions, and pump shafts. These steels are also widely used in the manufacture of rams and ring gears, providing strong support for the normal operation of various industries.
