AISI 1119 Carbon Steel Chemical Composition Properties, Grades, Chart and Pdf

AISI 1119 is a carbon steel which is classified as a low carbon steel due to its excellent machinability and weldability. It is usually a mix of carbon, from 0.15 to 0.20 %, manganese, from 0.60 to 0.90 %, phosphorus, from 0.030 % to 0.050 %, and sulfur, from 0.050 % to 0.080 %. A eutectic microstructure having a controlled chemistry of AISI 1119 makes its pearlite and ferrite matrix strong and tough while still maintaining ductility, making it suitable for a wide range of application such as shafts, gears, and machine parts. This steel type is used mostly in the former state based on AISI and SAE standards, is typically supplied in normalized or annealed condition. This carbon content just moderate offers the machining ease and hence manganese component that leads to hardenability and strength enhancing. Besides this again AISI 1119 can be made to undergo a heat treatment which would result in additional mechanical property enhancement. Charts, tables and PDF services give side to side comparisons of characteristics of the material so that the right selection is done and the product will be used in the application.

AISI 1119 Carbon Steel Chemical Composition And Grade Table

AISI 1119 is an iron upgraded grade of steel well-known for its high machinability and weldability. Chemically, it is famous for its relatively constant carbon contents (0.15-0.20%), manganese (0.30-0.60%), phosphorus (0.050%), and sulfur (0.050%). This material has high strength properties and, at the same time, easy shaping is a benefit for automation due to its structure. AISI 1119 with high carbon concentration is used to manufacture products for the automotive, machinery and construction sectors. A small-trapezoidal tooth is indicated in the grade table for parts demanding precision and not high strength. Industrial engineers and manufacturers, in turn, frequently choose this type of steel for its distinctive features and performance advantages which are characteristic and suitable for numerous applications.

AISI 1119 Carbon Steel Composition Table
Elements Fe Mn S C P
Min (%) 99.13 1.0 0.240 0.14 -
Max (%) 98.62 1.30 0.330 0.20 0.040

Advantages and Disadvantages of AISI 1119 Carbon Steel

    Advantages:

  • Improved hardenability: Higher degree of hardenability than AISI 1118.

  • Good toughness: Ability to resist cracking or splitting under impact pressure.

  • Suitable for case hardening: Can be case hardened to increase surface hardness.

  • Fair machinability: Possesses fairly good machinability.

    Disadvantages:

  • Moderate corrosion resistance: Vulnerable to corrosion within given conditions.

  • Limited weldability: Requires preheating and post-weld heat treatment.

  • Moderate cost: Not as low cost as some basic forms of carbon steel.

  • Moderate wear resistance: May require coatings to increase wear resistance.

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