Low Alloy Steel Round Bar

Low alloy steel round bar is round steel with a small amount of alloying elements added to ordinary round steel. These alloying elements can improve the performance of round steel, making it have better strength, toughness and wear resistance. The properties of Low alloy steel round bar are usually regulated by controlling the content of alloying elements and processing technology. Compared with ordinary round steel, low alloy steel round bar can meet higher requirements for use, and is more suitable for occasions that bear high pressure and impact loads

Low alloy steel round bar is a metal material with superior properties. It is characterized by strong corrosion resistance and is of great significance for manufacturing industrial products. The characteristics are mainly manifested in the following aspects:

1. Low alloy: refers to ferrite, the carbon content is between 0.15% and 0.25%, and the content is between 0.4% and 0.6%. The carbon content is low and has good plasticity.

2. Stability: small grains, not easy to deform, good corrosion resistance, strong adaptability, high impact resistance, and can meet more industrial environment requirements.

High toughness can avoid breaking during bending or impact processing, thereby improving the quality of industrial products.

3. Strong corrosion resistance: good corrosion resistance, can be used in a variety of corrosive environments for a long time, not easy to be corroded, and has high durability.

Chemical composition:

The surface treatment methods of low alloy steel round bar include polishing, grinding, wire drawing, electroplating, anodizing and heat treatment, etc. These treatment methods can improve the surface finish, corrosion resistance and wear resistance of steel. It has good weldability, and can be welded by conventional brazing, resistance welding and visible arc welding, and can produce various complicated welding to meet various engineering needs. It has good forgeability, and various complex structures can be produced through forging process to meet various engineering needs. At the same time, it can be forged by cold forging, pressure forging, hot forging and other methods, which can change the shape and processing performance of steel. The cost is lower than that of carbon steel, so in practical applications, it often replaces carbon steel to save costs. At the same time, it has good weldability and good forging performance, which can meet various engineering needs.

Low alloy steel round bar is widely used in construction and machinery manufacturing. In construction, low alloy steel round bar is often used to make load-bearing structures, supports, etc. Its high strength and corrosion resistance can ensure the stability and safety of buildings. In machinery manufacturing, low-alloy round steel is often used to make bearings, gears, springs and other parts. Its high toughness and wear resistance can improve the service life and reliability of mechanical equipment.

In short, low alloy steel round bar is widely used in the production of various industrial products because of its low alloy, stability, and strong corrosion resistance. It is an indispensable and important material.

Different countries and regions may have their own standard systems, the following are some commonly used national standards:

Chinese standard:

GB/T 1591-2018 Low-alloy high-strength structural steel

This standard specifies the technical requirements for a series of low alloy steel round bar of different materials and sizes.

British Standard:

BS 970-1: This standard specifies technical requirements for a range of carbon and carbon-manganese steels.

American standard:

ASTM A29/A29M: This standard covers a series of carbon structural steels, including some low alloy round steel.

ASTM A572/A572M: This standard specifies a family of low-alloy and high-strength low-alloy structural steels used in buildings, bridges, and other engineering.

Japanese standard:

JIS G4051: This standard specifies a series of general structural carbon steels, including some low-alloy round steel.

JIS G3136: This standard specifies some low-alloy high-strength steel plates and strips suitable for welding.