Basic Concepts of Steel Materials

In the field of construction engineering, threaded steel bars are one of the most commonly used steel materials. Ordinary threaded steel bars have ribs on their surfaces, which enhance their bond strength with concrete. In contrast, precision-rolled threaded steel bars are high-strength, high-precision ribbed steel materials widely used in engineering fields such as prestressed concrete structures, bridges, dams, tunnels, and slope anchoring.

Differences in Appearance and Dimensions

Ordinary threaded steel has transverse ribs in the shape of a crescent, spiral, or chevron, with diverse dimensional specifications. Precision-rolled threaded steel has a more regular threaded surface shape and higher dimensional accuracy, meeting the requirements of high-precision engineering projects.Yangtze Steel Group (China) Co., Ltd. , equipped with advanced machinery and modern production lines, produces precision-rolled threaded steel with precise dimensions that comply with stringent engineering standards.

Performance Characteristics Comparison

Ordinary threaded steel has average yield strength and tensile strength, making it suitable for general building structures. Precision-rolled threaded steel has high strength, capable of withstanding greater tensile and compressive forces, offering significant advantages in large-scale engineering projects.Yangtze Steel Group (China) Co., Ltd. employs mature production processes to produce precision-rolled threaded steel and other products with excellent mechanical properties, providing reliable structural support for engineering projects.

Different Application Scenarios

Ordinary threaded steel is primarily used in ordinary residential buildings, small bridges, and similar structures. Precision-rolled threaded steel is commonly used in projects with high requirements for structural strength and stability, such as large bridges, dams, and similar structures. The products of Yangtze Steel Group (China) Co., Ltd. have played a crucial role in these major engineering projects, providing robust support for construction efforts.

In concrete structures, reinforcement is generally placed in both longitudinal and transverse directions. Because reinforcement in concrete is subjected to both tension and compression, the spacing between transverse and longitudinal differs.
Generally, the spacing between longitudinal reinforcement should not exceed 150mm, and the spacing between transverse reinforcement should not exceed 200mm.

Based on their material properties, colored aluminum coils typically utilize special thermal insulation coatings or structural designs. The colored coating not only serves a decorative purpose but also effectively reflects most of the sunlight, reducing heat absorption. Furthermore, the aluminum material itself has excellent thermal conductivity, quickly dissipating and transferring heat to prevent localized overheating.

The thermal insulation properties of colored aluminum coils also offer a certain degree of stability and durability. Professionally treated, the thermal insulation coating resists fading and aging, maintaining excellent insulation performance over time and reducing repair and replacement costs associated with degraded insulation performance.