Low-alloy high-strength structural steel (GB/T1591-1994)
Introduction
Low-alloy high-strength structural steel (GB/T1591-1994) is a high-strength structural steel with a low alloy composition. This low alloy composition consists mainly of chromium, nickel, and molybdenum and is usually used to produce structural components in challenging environments. This type of steel generally has excellent mechanical properties such as a high yield strength and excellent corrosion resistance, making it suitable for use in applications where high strength and corrosion resistance is required.
Applications
Low-alloy high-strength structural steel (GB/T1591-1994) is mainly used in the production of construction components such as bridges, buildings or steel structures. This type of steel also has applications in offshore platforms, shipbuilding, power plants and in other applications that require a high strength-to-weight ratio.
Low-alloy high-strength structural steel (GB/T1591-1994) is an excellent choice for the production of components for a number of energy sources, such as nuclear power stations. The combination of the steel’s excellent mechanical properties, along with its ability to withstand extreme temperatures, makes it ideal for this application.
Chemical Composition of Low-alloy High-strength Structural Steel (GB/T1591-1994)
The chemical composition of this grade of steel is as follows:
C Si Mn P S Ni Cr Mo 0.20-0.25 0.35-0.60 0.40-1.40 ≤0.030 ≤0.030 ≤0.50 ≤ 0.50 ≤ 0.20
Mechanical Properties
The mechanical properties of this grade of steel are as follows:
Tensile Strength Yield Strength Elongation MPa MPa % Min 415 325 22
Manufacturing Process
Low-alloy high-strength structural steel (GB/T1591-1994) is usually manufactured via the electric arc furnace (EAF) process. Following the melting of the steel, it is then rolled into various sections, depending on the end product.
Conclusion
Low-alloy high-strength structural steel (GB/T1591-1994) is an ideal choice for the production of various components for use in challenging environments. Its excellent mechanical properties, along with its ability to resist corrosion and extreme temperatures, make it well suited for use in a range of industries.
