ThePipingMart Blog Grades SAE/AISI 1561 Carbon Steel (UNS G15610) – Composition, Properties and Uses

SAE/AISI 1561 Carbon Steel (UNS G15610) – Composition, Properties and Uses

SAE/AISI 1561 Steel

SAE/AISI 1561 is a medium-carbon steel alloy mostly used for industrial and automotive applications. It is known for its high strength, excellent ductility, good machinability, weldability, and heat resistance. SAE/AISI 1561 Carbon Steel, also known by its UNS designation G15610, is renowned for its impressive composition and structural properties. What sets AISI 1561 Steel apart is its high carbon content, which makes it incredibly robust and durable. This grade of carbon steel has moderate wear and tear resistance, making it perfect for various automotive, construction, and manufacturing applications. Besides its impressive mechanical properties, AISI 1561 is also easily machinable, weldable, and forgeable. In short, AISI 1561 Steel is an excellent choice if you’re looking for a high-strength, versatile carbon steel with excellent machinability. Let’s explore the various properties and benefits of SAE/AISI 1561 steel in more detail.

What Forms of AISI 1561 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 1561 Composition

Component Elements Properties Metric English Comments
Carbon, C 0.55 – 0.65 % 0.55 – 0.65 %
Iron, Fe 98.21 – 98.7 % 98.21 – 98.7 % As Balance
Manganese, Mn 0.75 – 1.05 % 0.75 – 1.05 %
Phosphorus, P <= 0.040 % <= 0.040 %
Sulfur, S <= 0.050 % <= 0.050 %

AISI 1561 Physical Properties

Physical Properties Metric English
Density 7.85 g/cc 0.284 lb/in³

AISI 1561 Mechanical Properties

Properties  Conditions
T (°C) Treatment
Density (×1000 kg/m3) 7.7-8.03 25
Poisson’s Ratio 0.27-0.30 25
Elastic Modulus (GPa) 190-210 25

AISI 1561 Thermal Properties

Properties Conditions
T (°C) Treatment
Thermal Conductivity (W/m-K) 42.7 100
Specific Heat (J/kg-K) 477 50-100

AISI 1561 Uses

SAE/AISI 1561 has a wide range of uses due to its versatile properties. It is commonly used in industrial applications such as hydraulic cylinders, gears, shafts, pins, screws, sleeves, nuts, bolts, worms, spindles, axles, and crankshafts. Its toughness and shock resistance make it ideal for automotive components such as drive shafts and axles.

AISI 1561 Uses in Industries

Automotive Industry

AISI 1561 is commonly used in the automotive industry for its high strength and wear resistance properties. It is often used to manufacture gears, shafts, and bearings that require durability and toughness to withstand harsh driving conditions.

Construction Industry

In the construction industry, AISI 1561 is used for its corrosion-resistant properties. This makes it ideal for outdoor structures or buildings exposed to moisture or harsh weather conditions. It is also commonly used in structural components such as beams and columns.

Aerospace Industry

The aerospace industry also utilizes AISI 1561 due to its high strength-to-weight ratio. This makes it a suitable material for aircraft components such as landing gear, engine parts, and structural frames.

Oil and Gas Industry

AISI 1561 is often used in the oil and gas industry for its ability to withstand high temperatures and pressures. It is commonly used in drilling equipment, valves, pumps, and other critical components that need to perform under extreme conditions.

Manufacturing Industry

AISI 1561 is used for various applications in the manufacturing industry due to its versatility and cost-effectiveness. It can be formed into different shapes and sizes through various processes such as casting, forging, or machining, making it suitable for various products.

Agricultural Equipment

AISI 1561 is also utilized in the agricultural sector for its durability and resistance to wear and tear. It can be found in farming equipment such as ploughs, tillers, harvesters, and other machinery necessary for agriculture production.

AISI 1561 Corrosion Resistance

SAE/AISI 1561 has excellent corrosion resistance when exposed to certain atmospheres or liquids. This makes it an ideal material for many industries that require components that can withstand harsh conditions or environments, such as chemical plants or marine vessels. It is also resistant to stress corrosion cracking which can occur when certain materials are exposed to specific levels of stress in combination with corrosive substances or elements.

AISI 1561 Heat Treatment

Heat treatment is an important process in the production of any metal component since it enhances the strength and flexibility of the material while improving its wear resistance and durability. The heat treatment process also helps reduce the risk of cracking during welding or machining operations by changing the microstructure of the material so that it can better absorb the stresses caused by welding or machining processes. Heat-treated parts made from SAE/AISI 1561 have a higher melting point than non-heat-treated parts, making them more durable in high-temperature environments.

AISI 1561 Machining

Machining refers to any type of manufacturing process where parts are cut from raw materials using specialized tools like drills or saws. Since SAE/AISI 1561 is a medium-carbon steel alloy, it has good machinability properties making it easy to cut into desired shapes without excessive tool wear or tear on cutting edges. In addition, the high hardness levels created through heat treatment allow for increased wear resistance which helps maintain accurate tolerances over longer periods of time, even under heavy use conditions.

AISI 1561 Welding

Welding involves joining two pieces together by melting them together at their edges until they form one solid part that is firmly held together when cooled down afterward. The medium-carbon content in SAE/AISI 1561 makes it easy to weld while still maintaining strong mechanical properties at elevated temperatures after cooling off again following welding operations which makes this alloy an ideal choice for welding applications that require high-strength components with excellent thermal stability over time.


In conclusion, there are many advantages that come with using SAE / AISI1562 steel alloy when producing components for industrial and automotive applications, including its excellent corrosion resistance, heat-resistant properties after the heat treatment process as well as its good machinability and weldability characteristics, which make it easy to produce accurate parts with a high level of durability over long periods of time even under heavy use conditions. Whether you are looking for components with superior strength or need something that can withstand extreme environmental conditions, this alloy should certainly be considered, given its versatile properties across multiple industries both today and into the future!

Related Post