AISI 1118 Carbon Steel Chemical Composition, Grade, Tables and Online Pdf

AISI 1118 carbon steel is a low-carbon steel that is usually good for welding and cutting, making it much preferred by many people. Apart from its chemical structure that mostly involves carbon, manganese, phosphorus, sulfur, and iron. The carbon content is available in the range of 0.15 to 0.2 with a better strength and toughness but ductility is also fitting the purpose. AISI 1118 is one of the steels for applications with designated strength and hardness. Seed components in a load-bearing toothed racks. studs and gears. In terms of grades, the tolerances of different manufactures may be a bit different, but there is a typical alignment with the AISI standard. The chemical composition, mechanical properties, and other applicable data is available in many formats from steel producers and data banks online in the form of tables, charts and PDFs, which are useful for design engineers and metallurgists in the process of material selection.

AISI 1118 Carbon Steel Chemical Composition And Grade Table

AISI 1118 steel material is a low-carbon steel that is said to have the carbon content of 0.18%. Its chemical composition breaking down is usually cherished 0.15-0.21% carbon, 0.60-0.90% manganese, the most 0.04% phosphorus, and the highest 0.05% sulfur. This steel gives a good cutting surface and is joining welding well suited for several applications in the manufacturing industry. AISI 1118, as identified by SAE-AISI specifications, is a category of steels arranged based on their alloying composition as well as mechanical properties. Sometimes, engineers, or manufacturers use grade tables to make a choice of materials for certain needs in auto, construction, or machinery sectors.

AISI 1118 Carbon Steel Composition Table
Elements Fe Mn C S P
Min (%) - 1.3 0.14 0.08 -
Max (%) Balance 1.6 0.2 0.13 0.04

Advantages and Disadvantages of AISI 1118 Carbon Steel

    Advantages:

  • Good machinability: Easily formed into different shapes and sizes.

  • High strength: Tough with fairly good yield and tensile strength.

  • Weldable: Can be easily welded with the right techniques.

  • Cost-effective: Relatively low cost compared to some grades.

    Disadvantages:

  • Low corrosion resistance: Loses hardness and strength quickly in certain environments.

  • Limited hardenability: Cannot be hardened to the level of some other carbon steels.

  • Prone to distortion: Susceptible to warping or distortion during heat treatment or machining processes.

  • Limited wear resistance: Not suitable for areas where high wear resistance is required.

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