ThePipingMart Blog Grades SAE/AISI 1116 Carbon Steel (UNS G11160) – Composition, Properties and Uses

SAE/AISI 1116 Carbon Steel (UNS G11160) – Composition, Properties and Uses

SAE / AISI 1116

SAE / AISI 1116 is a low-carbon steel containing manganese and sulfur. It is a free-machining steel, which means it can be machined easily without the need for special tools or heat treatment. This steel also has good corrosion resistance and weldability. Carbon steel plays a vital role in manufacturing as it is found in a variety of products from automobiles to construction equipment. One specific type of carbon steel, UNS G11160 or AISI 1116, is known for its durability and strength. This steel composition, which is primarily made up of carbon and manganese, has low tensile strength but high ductility. The combination of these properties makes it ideal for use in machinery and equipment that requires high resistance to wear and tear. This alloy, which conforms to SAE 1116 and AISI 1116 standards, is commonly used in the production of shafts, gears, and other machine parts. It is a valuable asset in the world of manufacturing due to its reliable properties and versatility in a range of applications. In this blog post, we will take a closer look at the properties of SAE / AISI 1116 and its uses.

What Forms of AISI 1116 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 1116 Composition

AISI 1116 is a low-carbon steel composition that is alloyed with both chromium and molybdenum. It provides a very uniform hardness and good machinability, while also featuring outstanding weldability properties. With its high strength-to-weight ratio, it can be used to form various components of applications such as automotive engine parts, power transmission gears, fasteners, and pressure vessels. Its low carbon content also helps in providing excellent ductility, deep drawing property, and forming capability which makes it ideal for products requiring high yield strength. Additionally, AISI 1116 is free from harmful elements such as sulfur and phosphorus and highly resistant to scaling at elevated temperatures which makes it an ideal choice for long-lasting components.

AISI 1116 Physical properties

AISI 1116 steel features an impressive set of physical properties that make it a highly attractive option for many applications. It offers high weldability, as well as excellent toughness and machinability. Additionally, AISI 1116 has good formability, plus outstanding wear and fatigue resistance. Its fair corrosion resistance offers more than enough protection in many environments. All these elements together make AISI 1116 the ideal material for machined parts, castings, gears, and other machine components.

AISI 1116 Mechanical Properties

AISI 1116 is classified as a low-alloy, carbon steel and is highly sought after for its incredible mechanical properties. It offers an impressive yield strength of 225ksi and tensile strength of 275ksi, with excellent toughness in the ductile range. When exposed to high temperatures, it maintains its stability, making it particularly ideal for many industries that require products with heavy stress-resisting abilities. Additionally, AISI 1116 has very good machinability – a critical aspect when selecting materials for projects that require precise component parts. For these reasons, AISI 1116 is often used for automotive parts and construction components such as nuts and bolts.

AISI 1116 Properties

SAE / AISI 1116 has the following properties:

  • Low carbon content
  • Contains manganese and sulfur
  • Good machinability
  • Good weldability
  • Good corrosion resistance
  • Good heat resistance

AISI 1116 Uses

SAE/AISI 1116 Carbon Steel (UNS G11160) is a versatile material used in various industries. Due to its high strength, it is commonly used in applications requiring high load-bearing capacity, such as construction, heavy machinery, and industrial equipment. Its durability and resistance to wear and tear also make it a popular material for manufacturing cutting tools, drill bits, and machine parts. Additionally, SAE/AISI 1116 Carbon Steel is often used in the automotive industry to produce components such as shafts, gears, and axles due to its ability to withstand high levels of stress and pressure. Its versatility and widespread utility have made it an indispensable material in various applications across numerous industries.

AISI 1116 Uses in Industries

Construction Industry

AISI 1116, known as low carbon steel, is commonly used in construction due to its strength and durability. It is often used to construct buildings, bridges, and other structures that require high-strength materials.

Automotive Industry

The automotive industry also relies on AISI 1116 for its strength and toughness. This type of steel is commonly used to produce car bodies and other structural components. Its ability to withstand high impact makes it a popular choice for vehicle manufacturers.

Manufacturing Industry

AISI 1116 is widely used in manufacturing for various applications, such as machine parts, tools, and equipment. Its versatility and ability to be easily machined make it a valuable material for creating precise and durable components.

Energy Industry

The energy industry also utilizes AISI 1116 for various purposes, such as pipeline construction, oil rigs, and power plant structures. Its strength and resistance to extreme temperatures make it a reliable material for these applications.

Aerospace Industry

In the aerospace industry, where safety and reliability are crucial, AISI 1116 is commonly used in aircraft parts such as landing gear components, engine mounts, and structural frames. Its lightweight yet strong properties make it an ideal material for these critical applications.

AISI 1116 Heat Treatment

Annealing – Full anneal – Austenitize (heat to critical temperature) – Quench in oil – Tempering as required. Hardening – Harden from a temperature of 1550º F (843º C) followed by water quench or air cool. Tempering – Temper immediately after quenching. Reheating should be between 1150º F – 1200º F (620º C – 650º C.) For maximum hardness and strength, temper between 400º F – 600º F (200º C – 315º C.)

AISI 1116 Machining

When annealed, this steel can be machined easily using standard methods. However, when hardened, it becomes more difficult to machine due to the high hardness.

AISI 1116 Welding

This steel can be welded using any standard welding method. Preheating is not necessary before welding. However, post-weld heat treatment may be necessary to achieve the desired mechanical properties.

AISI 1116 Corrosion resistance

SAE/AISI 1116 steel offers excellent corrosion resistance in many different environments. This resilience is the result of its low carbon and sulfur content, which increases the steel’s resistance to pitting. It is a great choice for applications that require protection in harsh seaside and offshore conditions. In addition, it has good electrical resistivity properties, making it an ideal material when static control is required. With its impressive array of qualities, SAE/AISI 1116 steel is an essential alloy for industries such as automotive, marine, and engineering.


In conclusion, SAE / AISI 1116 is a low-carbon steel containing manganese and sulfur, which makes it free-machining steel. It also has good weldability and corrosion resistance. This steel is often used in gears, shafts, pinions, spindles, arbors, and other applications where strength and hardness are required.

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