There are many types of hot-rolled coil steel, which are usually divided according to the chemical composition, mechanical properties and use of the steel. The following are some common hot-rolled coil steel types and their characteristics:
1.Classification by chemical composition and mechanical properties
Q series steel
Q195, Q215, Q235: These types of hot-rolled coils belong to ordinary carbon structural steels. The main difference between them is that the carbon content in the steel is different, so the strength and hardness are also different. These types of hot-rolled coils have a wide range of applications and are suitable for many fields such as construction and manufacturing. Among them, Q235 steel is a commonly used ordinary carbon structural steel with high strength, good plasticity and weldability. It is often used to make welded structures of heavy workpieces, such as large metallurgical machinery, mining machinery, heavy vehicles, bridges, offshore platforms, etc.
Q345: This is a low-alloy high-strength structural steel with higher tensile strength than Q195, Q215, and Q235 coils. It is often used to manufacture large workpieces such as steel plates and steel pipes, and has excellent corrosion resistance, weldability and machinability.
SS400: This is a low-carbon steel plate with excellent weldability and machinability. It can be widely used in construction, bridges, shipbuilding, machinery manufacturing and other fields. SS400 is similar to Q235 material, but contains higher sulfur and phosphorus, which helps to improve its strength and durability.
2. Classification by specification size
The specifications of hot-rolled coils are very rich, and the common width is generally 1000mm2500mm, and the length is generally 2m6m. The specific specifications may vary depending on the manufacturer and market demand. For example, some hot-rolled coils may have specific thicknesses (such as 1.5mm, 2.0mm, 3.0mm, etc.) and widths (such as 1250mm, 1500mm, etc.) to meet the needs of different industries for steel sizes.
3. Other special models
In addition to the common hot-rolled coil models mentioned previously, such as the Q series (such as Q195, Q215, Q235, Q345) and SS400, there are some other common models, which are usually named and classified according to specific chemical composition, mechanical properties and uses. The following are some additional common hot-rolled coil models and their characteristics:
08F coil:
Material: low carbon steel plate
Features: The main feature is good ductility, which can better adapt to complex processing and forming processes.
Application areas: commonly used in automobile manufacturing, electrical equipment, furniture and other fields.
20# coil:
Material: seamless steel pipe steel plate
Features: high strength and good wear resistance.
Application areas: suitable for some high-strength parts in the machinery manufacturing industry and the petroleum industry.
SPHC:
Type: cold forming steel
Features: moderate carbon content and good cold forming performance.
Application areas: suitable for manufacturing parts for cold forming processing.
SAE1006:
Type: Steel under the standard of the Society of Automotive Engineers (SAE)
Features: The specific performance depends on the specific chemical composition and heat treatment state, but it usually has good processing performance and mechanical properties.
Application areas: Widely used in automobile manufacturing and other fields that require good processing performance.
Stainless steel coil (such as 304, 316L, etc.):
Material: Stainless steel
Features: Excellent corrosion resistance, good processing performance and mechanical properties.
Application areas: Widely used in chemical, food processing, medical equipment, architectural decoration and other fields.
Special alloy steel coil:
This type of coil may contain specific alloy elements (such as chromium, nickel, molybdenum, etc.) to improve its corrosion resistance, wear resistance, high temperature strength and other characteristics.
Application areas: Depending on the specific alloy composition and performance, special alloy steel coils can be used in high-end fields such as aerospace, marine engineering, nuclear power generation, etc.
It should be noted that the models and specifications of hot-rolled coils are very rich, and the above listed are only some common models. In actual applications, it is also necessary to select appropriate models and specifications based on specific engineering requirements, use environment, cost budget and other factors. In addition, the same type of hot-rolled coils produced by different manufacturers may also have differences in performance, so when choosing, you should also pay attention to the manufacturer's production level and quality control capabilities.
Summary
There are many types of hot-rolled coil steel, and the selection of specific models should be determined according to actual needs and uses. When choosing, it is necessary to comprehensively consider factors such as the chemical composition, mechanical properties, specifications, dimensions, and price of the steel. At the same time, it is also necessary to pay attention to choosing regular manufacturers and qualified product quality to ensure the use effect and safety of hot-rolled coil steel.
Your message must be between 20-3,000 characters!
