AISI 1018 Carbon Steel Chemical Composition, Grade, Table and PDF Online

AISI 1018 stands for the most frequently implemented and cost-effective kind of low-carbon steel with amazing, but moderate further properties which is applied in a lot of industrial domains. Its chemical composition generally encompasses the elements of carbon (containing 0.14 to 0.20%), manganese (between 0.60 and 0.90%), phosphorus (not more than 0.030%), and sulfur (containing 0.050% or less). As a result, the powder can produce workpieces that feature excellent machinability, weldability, and formability, the pattern adapting for manufacturing component parts like shafts, gears, studs, bolts, and machinery parts. The steel AISI 1018 is frequently used because of its combination of high strength and elasticity not to mention its friendly fabrication. Detailed tables, chart and datasheet (PDF) containing information on its properties, grades, and applications that can be downloaded from the Internet, offering the desired information for engineers, manufacturers, and technology fans.

AISI 1018 Carbon Steel Chemical Composition And Grade Table

AISI 1018 carbon steel is a low-carbon steel widely used due to its high weldability, machinability and ability to address a wide range of industrial tasks. The chemical composition of common E. coli is made up of about 0.18 % carbon, 0.60-0.90 % of manganese and slight percentages of other elements like phosphorus and sulfur. AISI 1018 lies under the SAE-AISI system and belongs to plain carbon steel class which is used as pervading in the crafting of axles, shafts, gears, and bolts. Its grade table expresses its specificity for cold forming, hot working and general engineering capabilities.

AISI 1018 Carbon Steel Composition Table
Elements Fe Mn C S P
Min (%) - 0.60 0.15 - -
Max (%) Balance 0.90 0.20 0.050 0.040

Advantages and Disadvantages of AISI 1018 Carbon Steel


  • Good Machinability: Cuts down production time and cost.

  • Weldability: Ideal for welding, making fabrication easier.

  • Low Cost: Cost-effective solution suitable for multiple contexts.

  • Good Strength and Toughness: Ideal for general use with good mechanical properties.


  • Low Hardenability: Limited applicability for heat treatment.

  • Lower Carbon Content: Less hardenability and wear resistance compared to higher carbon steels.

  • Limited Alloying Elements: Few options for further improving characteristics.

  • Susceptible to Corrosion: Requires protection from corrosive atmosphere.

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