Q345 Carbon Steel Angle Steel

Q345 carbon steel angle steel has good comprehensive mechanical properties and low temperature performance, good plasticity and welding ability. It is widely used in bridges, petroleum storage tanks, vehicles, cranes and general metal structural parts.

Its welding property is occasionally questioned by end users, although it is mainly affected by its chemical content. With Ceq greater than 0.45%, it is necessary to formulate strict technological measures during welding.

Strength

The strength of carbon steel angle is one of its most significant features, as it can withstand heavy-duty Q345 carbon steel angle steel stress and strain without buckling or deforming. This characteristic makes it an ideal material for construction projects, particularly those that require a high level of durability. In addition, steel angle is able to resist corrosion, which is essential for structures that will be exposed to moisture or other chemicals.

Moreover, steel angle can withstand torsional forces, making it an excellent choice for bridges and flyovers. These structures are prone to bending and torsional pressure, and they must be able to withstand these stresses and strains to ensure the safety of people using them. Steel angle is also a cost-effective choice for construction, as it can be produced more cheaply than other materials with similar strength properties.

The tensile strength of a material is the amount of tensile stress it can endure before failing, which is usually characterized by breaking or cracking. The tensile strength of Q345 carbon steel angle is rated at between 470 and 660 mega Pascals. In terms of mechanical testing, 96 Q345 LAS columns were tested under axial compression to determine their buckling mode. The test results showed that the buckling modes of the specimens were flexural buckling and flexural-torsional buckling, which is consistent with the analysis results.

Weldability

The weldability of Q345 carbon steel angle steel makes it a good choice for construction projects. It is capable of enduring significant amounts of stress and strain without breaking or deforming. This durability means that you won’t have to worry about the structural integrity of your project even when it is exposed to heavy-duty conditions for prolonged periods of time.

Macroscopic corrosion morphology of Q345 steel is different between the sunlit and shaded sides, which is more severe on the latter. The shaded side exhibits a darker color, and the rust layer on it is loose and prone to detachment, while the depth of corrosion pits is also greater than that of the sunlit side. XRD analysis reveals that the composition of rust layers on the sunlit and shaded sides is different for the same exposure period, with more Fe3O4 on the shaded side.

In addition, the weldability of Q345 steel is aided by its low temperature performance and good plasticity. This makes it a great choice for cold regions where it is used in many metal structural parts and general building structures. The wide range of sizes and thicknesses available further enhances its versatility. This allows architects, engineers, and designers to customize their projects to suit their needs without having to worry about material limitations. This versatility also helps to reduce overall costs by allowing engineers and designers to optimize their designs without having to spend extra money on rework or modification.

Corrosion Resistance

Q345 carbon steel angle is highly durable and corrosion-resistant, which makes it a desirable construction material. It can withstand heavy-duty stress and use before failing, which significantly reduces maintenance costs over the life of a structure. This versatility, coupled with its cost-effectiveness, makes it an excellent choice for large-scale infrastructure projects.

This particular steel grade Industrial carbon steel square bars also has good ductility and toughness, which allows it to withstand sudden shocks and dynamic loads without failing. This feature is especially beneficial for applications that require high-strength materials that are lightweight and easy to transport and assemble.

In addition to the above benefits, carbon steel is an environmentally friendly material, as it can be recycled when no longer needed. This further reduces the need for new raw materials and energy to produce replacement products.

Corrosion resistance is an essential attribute of a building material, particularly in environments that are constantly exposed to harsh weather conditions. This quality is why many large-scale projects rely on steel angles to build bridges, skyscrapers, and other structures that are expected to withstand years of wear and tear. This material can also be used to construct railways, as it is able to withstand the constant movement of trains and other rail-related equipment without bending or warping.

Heat Treatment

The steel angle is a versatile construction material, with exceptional durability and flexibility. It can be curved, bent, and cut into any shape required for the project. This flexibility enables it to adapt to the design of many different structures, including storage solutions, industrial shelving units, and even furniture. Moreover, its versatility means that it can be constructed at lower costs than other materials.

Q345 carbon steel angle steel has good comprehensive mechanical properties, low temperature performance and plasticity, and is suitable for use as medium and low pressure vessels, oil tanks, vehicles, cranes, mining machinery, power stations, bridges and other structures bearing dynamic loads, general metal structural parts, and building structures in cold regions. It can be used under -40°C in the hot rolling or normalizing state.

To simulate the fire conditions in the structure, the Q345 structural steel specimens were repeatedly heated and cooled 1-3 times by using the fire-extinguishing foam. Then, uniaxial tensile tests and SEM observations were carried out to examine their post-fire mechanical behavior. The fracture surfaces of the fire-affected samples exhibited step-like features. The unheated composite plate had a cleavage fracture, while the heat-treated parent plate showed a quasi-cleavage fracture with striations and tearing ridge. Both plates exhibited a ferrite and pearlite, with rod-shaped martensite for the parent plate and lath-shaped martensite for the flyer plate.