ThePipingMart Blog Grades SAE/AISI 1132(G11320) – Composition, Properties and Uses

SAE/AISI 1132(G11320) – Composition, Properties and Uses

SAE / AISI 1132

AISI 1132 is a low-carbon, high-manganese steel known for its enhanced strength and hardness, which is attributed to the addition of manganese. This alloy is commonly employed in automotive and construction applications. Recognized as SAE/AISI 1132 (G11320) or UNS G11320, it boasts excellent machinability and weldability properties. With a medium carbon content ranging from 0.28% to 0.33%, SAE/AISI 1132 is preferred for applications requiring strength and durability. This carbon steel finds utility in the automotive, aerospace, and construction industries owing to its versatility and reliability. Engineers and designers favor SAE/AISI 1132 steel when creating components that must endure harsh conditions and heavy loads. If you seek a dependable carbon steel capable of meeting tough challenges, SAE/AISI 1132 steel is worth considering.

What Forms of AISI 1132 is Available at Piping Mart?

  • Nut
  • Bar
  • Bolt
  • Pipe
  • Screw
  • Tubing
  • Valves
  • Washers
  • Flanges
  • Fasteners
  • Electrodes
  • Stud Bolts
  • Sheet Plates
  • Pipe Fittings
  • Forged Fitting
  • Instrumentation Fittings

AISI 1132 Composition

AISI/SAE 1132 is a low-carbon, high-manganese steel alloy with good hardenability. It features excellent machinability and machined surface finish characteristics along with very high tensile strength, ductility, and toughness. The alloy has a composition of 0.17 – 0.23% Carbon; 1.10 – 1.60% Manganese; 0.70 – 0.90% Silicon; 0.04 – 0.35% Phosphorus; and up to 0.04% Sulfur plus trace amounts of other elements such as Aluminum, Boron, Copper, Lead, and Nickel which are generally added to enhance certain physical and mechanical properties like improved corrosion resistance or increased material strength stability in applications where this type of steel may be used. This versatile steel can be used in a wide variety of industries such as automotive parts manufacturing, aircraft component fabrication, and heavy equipment construction resulting in highly satisfactory performance results due to its higher yield strength capacity compared to similar alloys including AISI / SAE 4140, 4320, and 1045 for example when proper heat treatment techniques are correctly applied during the production process operations cycle phases.

AISI 1132 Physical Properties

SAE / AISI 1132 is an alloy steel that provides excellent properties for machine operators, with a tensile strength of 115-125 ksi, good fatigue strength with a value of 85ksi or less in rotating bending fatigue tests, and notable weldability. This steel fusion also has an elongation at break of 10-30%, making it resilient during metalworking operations. As if these impressive physical attributes weren’t enough, SAE / AISI 1132 is strong enough to resist breaking or fracturing when worked at high temperatures up to 1750 °F (954 °C). With SAE / AISI 1132 as the foundation material of choice, operators can confidently craft durable pieces with efficient results every time.

AISI 1132 Mechanical Properties

Alloy SAE/AISI 1132 is an alloy steel that boasts impressive mechanical properties such as excellent tensile strength and a yield ratio of 120,000 psig. This makes it potentially desirable for applications in a variety of engineering projects that require strong materials with high durabilities, such as a car engine. Such high mechanical properties mean that the material can handle extreme conditions ranging from significantly higher temperatures to increased levels of stress without sacrificing its superior performance. This makes SAE/AISI 1132 ideal for any project demanding superior-grade material, from engine components to heavy structural load-bearing parts.

AISI 1132 Uses

Alloy AISI 1132 finds positive applications across various industries. It is recognized for its High Strength and Wear Resistance and is commonly employed in manufacturing components for heavy-duty Machinery, Automotive Parts, and Industrial Equipment. Its superior properties make AISI 1132 a reliable choice, ensuring Durability and Performance in demanding applications.

AISI 1132 Uses in Industries

  • Construction
  • Automotive Industry
  • Oil and Gas Industry
  • Machinery Manufacturing
  • Aerospace Industry

AISI 1132 Corrosion Resistance

AISI 1132 demonstrates commendable corrosion resistance, enhancing its longevity and reliability in diverse applications subject to corrosive environments.

AISI 1132 Heat Resistance

AISI 1132 exhibits notable heat resistance, ensuring stability and structural integrity in applications with elevated temperatures. This attribute enhances its suitability for various demanding environments requiring thermal resilience.

AISI 1132 Heat Treatment

SAE / AISI 1132 can be heat treated by normalizing at 1650°F (899°C) followed by air cooling or quenching in oil and tempering at a moderate temperature.

AISI 1132 Welding

AISI 1132 stands out in welding applications with its remarkable capabilities, seamlessly integrating into diverse uses. Its positive welding attributes, marked by efficiency and reliability, establish it as a preferred material for welding processes, ensuring optimal results and reinforcing its reputation in various industries.

AISI 1132 Machining

AISI 1132 stands out in machining, presenting exceptional qualities for precision and efficiency. Its favourable machining features make it a top choice, ensuring effortless fabrication and shaping in diverse manufacturing processes. The steel’s impressive machinability boosts Productivity, Delivering reliable results in machining applications.


SAE/AISI 1132 (G11320) alloy, known for its high strength and wear resistance, finds versatile applications in heavy-duty machinery and automotive parts. With commendable machinability and welding properties, it is a reliable choice for diverse manufacturing processes, ensuring durability and optimal performance in demanding applications.

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