Product details table:

Physical and chemical properties:

Physical properties

Appearance:

It typically presents a metallic gray color, with a smooth surface after processing. Different surface finishes can be achieved through treatments such as painting, galvanizing, or black oxide coating, enhancing its aesthetic appeal and corrosion resistance.

Density:

The density of A36 carbon steel is approximately 7.85g/cm³, which is slightly lower than stainless steel. This makes it a lightweight yet strong material for structural applications.

Melting point:

The melting point of A36 carbon steel is around 1425-1540℃. Its high melting point ensures good performance in high-temperature environments, though not as high as stainless steel.

Coefficient of thermal expansion:

The coefficient of thermal expansion is moderate, approximately 12×10⁻⁶/℃ at room temperature. This characteristic allows A36 carbon steel angle profiles to maintain dimensional stability under varying temperature conditions.

Thermal conductivity:

A36 carbon steel has relatively good thermal conductivity, with a coefficient of about 50-60W/(m·K). This is significantly higher than stainless steel, making it suitable for applications requiring heat dissipation.

Electrical conductivity:

A36 carbon steel exhibits moderate electrical conductivity, which is typical for carbon steels. It is not commonly used for electrical applications but performs adequately when needed.

Chemical properties

Corrosion resistance:

A36 carbon steel has limited corrosion resistance compared to stainless steel. It is prone to rusting in humid or corrosive environments unless treated with protective coatings such as galvanization, painting, or powder coating. These treatments significantly enhance its durability and lifespan.

Antioxidation:

At room temperature, A36 carbon steel exhibits moderate oxidation resistance. However, at elevated temperatures, it may oxidize more readily unless protected by coatings or used in controlled environments.

Chemical stability:

In general, A36 carbon steel is chemically stable in non-corrosive environments. However, it is susceptible to chemical attack in acidic or alkaline media, especially in the presence of moisture. Protective measures are necessary for use in harsh chemical environments.

Passivation:

Unlike stainless steel, A36 carbon steel does not naturally form a passive oxide layer. Instead, protective coatings such as zinc (galvanization) or epoxy are applied to improve its resistance to corrosion and environmental damage.

Application:

A36 ASTM carbon steel angle profiles are widely used due to their excellent strength, affordability, and ease of fabrication. In the construction industry, they are commonly employed in structural frameworks, bridges, buildings, and general fabrication. In the manufacturing sector, they are used to create machinery frames, equipment supports, and tooling components. They are also utilized in infrastructure projects such as railings, staircases, and support brackets. Additionally, in the automotive and transportation industries, A36 carbon steel angle profiles are used for vehicle frames and structural reinforcements. Their versatility and cost-effectiveness make them indispensable in various industrial applications, even though they require protective treatments for long-term durability in harsh environments.