ASTM A36 Carbon Structural Steel Plate

astm a36 steel is one of the most widely used carbon structural steels, although the carbon content of a36 material is maximum 0.29%, it is considered to be the mild steel (content of carbon ≤ 0.25%).

a36 mild steel is often compared to aisi 1018, a36 carbon steel is commonly hot rolled, while 1018 steel is commonly cold rolled.

notes: there are two versions that define low carbon steel, one with a carbon content between 0.04% (0.05%) and 0.25% and the other with between 0.04% (0.05%) and 0.29%.

astm a36 steel plate is the most widely used hot-rolled steel product. as a kind of carbon structural steel product, its relative products are round rod steel, angle bar, and steel sections such as i-beams, h-beams, angles, and channels. hot rolled astm a36 has rough surface on the final product, it’s easy for further processing like machining.

a36 steel properties

the following tables show astm a36 steel properties such as chemical composition, physical and mechanical properties.

chemical composition

the following specification gives a36 carbon steel chemical composition in different product froms.

note: shapes with flange thickness greater than 3 in (75 mm) require a manganese content of 0.85-1.35% and a silicon content of 0.15-0.40%.