Q195 Carbon Steel Plate

Q195 carbon steel plate has several key properties, including strength, weldability, and machinability. It can be used to make a wide range of structural components, such as pipes and tubes.

Despite its one-of-a-kind properties, it requires surface modification before it can be efficiently applied in industry. Advanced surface modification technologies can dramatically improve specific surface topographies and roughness, as well as boost energy efficiency and product quality.

Strength

Q195 is a common Chinese grade of carbon structural steel. Its moderate strength and good formability make it suitable for applications that do not require high-strength materials. The yield strength of Q195 is approximately 195 megapascals (MPa), and its tensile strength is 315 – 430 MPa.

The steel is made up of a number of elements, including iron and manganese. The manganese content in Q195 ranges from 0.25% to 0.50%, which helps improve the steel’s toughness and ductility. Its tensile strength is also enhanced by the presence of silicon and phosphorus.

It is important to note that the yield and tensile strengths of Q195 are lower than those of other grades of steel, such as those used in construction. However, it is worth mentioning that these differences Q195 carbon steel plate in strength are often offset by the steel’s other properties, which make it suitable for a wide variety of applications.

Q195 can be made into a large number of steel items, such as steel wire rod and steel plates. Wire rod can be cold drawn into low carbon steel wires, then fabricated into black or aroused iron wire, binding wire, welded wire mesh, metal fence and more; rolled steel sheets can be utilized for material boards, beautiful boards, bundling holders, iron drums, instrument cases, switch boxes and defensive spreads, etc.

Weldability

A quality that makes Q195 carbon steel plate ideal for a wide range of fabrication and manufacturing applications is its weldability. It can easily be welded without the need for special procedures or equipment, and it produces strong welds that are durable and long-lasting.

This material also has good formability, which allows it to be bent and stretched without becoming permanently deformed. Its ductility is especially useful when used to make cold-formed parts and components.

The weldability of this material is enhanced by its low carbon content. This characteristic helps ensure a clean, weldable surface and improves the tensile strength of finished parts. This type of carbon steel is often used to make welded and seamless pipes and tubes for water supply, gas transportation, and general structural supports.

While this grade of carbon steel doesn’t have a direct international equivalent, there carbon steel plate suppliers are other standard grades that can serve as approximate replacements due to their similar chemical composition and qualities. Some of the most common examples include ASTM A283 Grade C, DIN 17100 St33, and JIS G3101 SS330.

While these standards provide approximate equivalences, it’s important to consult with a materials expert to ensure that the right carbon steel is selected for a particular application. It is also crucial to check the applicable standards or specifications for more detailed information on the characteristics of a specific type of carbon steel.

Machinability

The machinability of Q195 carbon steel plate enables it to be easily worked through standard metal fabrication processes. It can be turned, milled, and drilled for a variety of purposes, making it an ideal choice for manufacturing applications that require a combination of strength and formability. This grade of steel is also readily welded using common welding methods, including arc, gas, and resistance welding.

The yield strength of Q195 steel is approximately 195 megapascals, which makes it suitable for many industrial and structural uses. This grade of steel also has moderate tensile and elongation properties, making it ideal for applications that do not require particularly high levels of strength.

Q195 steel is commonly used for general structural reasons, furniture manufacture, construction products, and automobile components. Its balanced properties and low cost make it a popular option for various manufacturing projects. However, it is worth noting that there are other modern steel grades with higher strength and better machinability, making it advisable to reference relevant standards and specifications when selecting a specific type of steel for any given project.

Corrosion Resistance

Q195 carbon steel has good ductility, making it easier for manufacturers to shape it during manufacturing processes. This makes it a popular choice for applications that require moderate strength and weldability, such as industrial piping. Its moderate tensile strength also makes it suitable for structural components.

To test the corrosion resistance of Q195 carbon steel, a sample was subjected to electrolytic plasma processing (EPP) for the purpose of removing oxide scale and contaminants on its surface before subsequently applying a zinc coating. The EPP treatment was optimized to achieve a thin and compact zinc coating with a surface roughness of less than 3 m. The morphological features of the steel samples were analyzed by using field emission scanning electron microscopy (FESEM, ZEISS SUPRA55-FESEM, Carl Zeiss GmbH, Jena, Germany) and X-ray diffraction analysis (Rigaku D/MAX-2500-H, Japan).

The results showed that the EPP treatment is a dynamic process that significantly influences the surface morphology of the sample during the treatment. The uneven plasma density distribution leads to an electric field that causes the substrate surface to have different temperatures and gas flow rates. This explains why the EPP process significantly affects the corrosion behavior of the sample. It also suggests that the corrosion behavior of Q195 carbon steel can be improved through a better understanding of its surface characteristics and mechanisms.