ThePipingMart Blog Grades SAE / AISI 1548 – Composition, Properties and Uses

SAE / AISI 1548 – Composition, Properties and Uses

SAE / AISI 1548

SAE / AISI 1548 steel is a medium carbon, low alloy steel that has excellent properties for welding, machining, and heat treatment. It’s often used in applications such as automotive components, construction equipment, and industrial equipment because of its high strength-to-weight ratio and durability. In this blog post, we’ll discuss some of the most common uses for SAE / AISI 1548 steel in various industries. SAE/AISI 1548 steel is known for its exceptional strength and ductility, making it a popular choice for a range of applications. This high-strength low-alloy (HSLA) steel grade is primarily composed of iron, carbon, and manganese, with trace amounts of other elements. The UNS G15480 and EN 1.1226 grades of SAE 1548 steel exhibit excellent weldability and machinability, making them versatile and easy to work with. In addition, this steel grade is praised for its resistance to wear and tear as well as its ability to withstand extreme temperatures. With its impressive characteristics, it’s no surprise that SAE/AISI 1548 steel is widely used across industries, including automotive, construction, and manufacturing.

What Forms of AISI 1548 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 1548 Chemical Composition

Properties S
Cr Ni
0.44-0.52  0.07-0.6(a,b) 1.1-1.4 0.03 0.05
Mo Al Cu Nb Ti V Ce
N Co Pb B Other

AISI 1548 Physical Properties

Quantity Value Unit
Thermal expansion 16 – 17 e-6/K
Thermal conductivity 16 – 16 W/m.K
Specific heat 500 – 500 J/kg.K
Melting temperature 1370 – 1400 °C
Service temperature 0 – 500 °C
Density 8000 – 8000 kg/m3
Resistivity 0.7 – 0.7 Ohm.mm2/m

AISI 1548 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
Tensile Strength (Mpa) 650 25 annealed, cold drawn (round bar (19-32 mm)) more
Yield Strength (Mpa) 540
Elongation (%) 10
Reduction in Area (%) 35
Hardness (HB) 192 25 annealed, cold drawn (round bar (19-32 mm)) more

AISI 1548 Uses

AISI / SAE 1548 is a low-alloy steel grade often used in the automotive and aerospace industries. Its most characteristic feature is a combination of strength, ductility, and toughness, making this highly usable material ideal for applications where these properties are needed. In particular, it has been used for hydraulic ram cylinders in heavy industry, suspension components in light vehicles, landing gear and control systems in aircraft, as well as drive shafts and power takeoffs in various settings. In addition to its strength and durability, this material also offers excellent weldability without compromising quality or performance. As such, AISI / SAE 1548 has found itself integral for many different tasks across multiple industries today.

AISI 1548 Uses in Industries

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

AISI 1548 Corrosion Resistance

SAE / AISI 1548 steel is highly resistant to corrosion due to its chromium content. This makes it ideal for applications where corrosion resistance is important such as mining equipment, processing plants, and off-shore oil rigs. Additionally, this type of steel has good welding characteristics, which help to further enhance its corrosion resistance when welded properly.

AISI 1548 Heat Resistance

SAE / AISI 1548 steel also has excellent heat resistance making it suitable for high-temperature applications such as power plants and chemical processing facilities. The high chromium content helps to increase the melting point of the metal so that it can withstand temperatures up to 1600 degrees Celsius without losing its structural integrity or becoming brittle.

AISI 1548 Heat Treatment

Because of its good heat resistance properties, SAE / AISI 1548 steel can be heat treated for increased hardness and strength. This process involves heating the material to specific temperatures and then cooling it quickly in water or oil, depending on the desired outcome. Heat treating increases the strength of the metal while also improving its wear resistance which makes it well-suited for use in heavy machinery like excavators and bulldozers.

AISI 1548 Machining

SAE / AISI 1548 steel is relatively easy to machine due to its low carbon content and good machinability rating (around 70). This makes it an ideal choice for components with complex shapes that require precise machining, such as diesel engines and transmissions. Additionally, this type of steel can be easily cast into complex shapes, which allows manufacturers to create intricate parts with less time and money invested in manufacturing them from scratch using other methods like milling or grinding.

AISI 1548 Welding

Lastly, SAE / AISI 1548 steel has excellent welding characteristics making it suitable for applications where welding is necessary, such as pipeline construction or shipbuilding. The low carbon content helps prevent cracking during welding while still allowing enough flexibility so that welders can work with larger pieces without worrying about warping or distortion during welding operations.


As you can see, SAE / AISI 1548 steel has a wide range of uses across multiple industries thanks to its combination of corrosion resistance, heat resistance, machinability, and weldability. Whether you need a component with complex shapes or something that needs to stand up against high temperatures – this type of steel can handle just about anything you throw at it! If you’re looking for a strong yet lightweight material that’s easy to work with, then look no further than SAE/AISI 1548 – the perfect all-around solution!

Related Post