Forte Metals Logo

4142 Steel Bar | Forte Metals

4142 steel bar

When you need performance that lasts, turn to 4142 steel bar.

choose 4142 steel bar

Don't settle for anything less than 4142 steel's exceptional durability and toughness

With its high strength, toughness, and wear resistance, the 4142 steel bar is a go-to choice for a wide range of industrial applications and tool-making. This medium carbon, chromium-molybdenum, through-hardening alloy steel boasts excellent fatigue and impact resistance. After heat treatment, it delivers impressive tensile and yield strengths. And with proper hardening and tempering, its machinability only improves, making it a versatile choice for any tough job.


Whether you are in the market to find 4142/4140 round bar Alloys, Forte Precision Metals is here to provide you with high-quality stocks. We assure you to get the 4140/4142 Alloys bar stocks and 4140/4142 Alloys round bar stocks that fit your needs.

Common Uses

  • hydraulic machinery shafts
  • cams
  • reamer bodies
  • axles
  • couplings
  • stubs
  • bolts
  • piston rods
  • shafting
  • gear racks
  • tool bodies
  • spindles
  • tie rods

Steel Properties

Physical Properties 


Elastic modulus 

Bulk modulus 

Shear modulus 

Poisson’s ratio 


0.284 lb/in³     

27557-30458 ksi  

20300 ksi      

11600 ksi


Chemical Elements
























0.80 – 1.10

0.75 – 1.0

0.380 – 0.430

0.15 – 0.30

 0.15 – 0.25




Discover the Strength and Durability of 4142 Steel Bar

If you are looking for a reliable and durable material for your industrial applications, the 4142 steel bar might be just what you need. This medium carbon alloy steel, with its chromium and molybdenum content, offers superior strength, toughness, and wear resistance. Its high tensile and yield strengths make it a popular choice for tool-making, and its through-hardening ability provides excellent fatigue and impact resistance.

The 4142 bar is also known for its machinability, which only improves after proper hardening and tempering. This makes it an ideal choice for a range of applications, including shafts, gears, studs, and other components that require high strength and durability.

Moreover, the steel bar is widely available in various sizes and forms, including round, square, and flat bars, as well as forged or hot-rolled options. So whether you need a large or small quantity, you can easily find the right product to meet your needs.

Get Superior Strength and Machinability with 4140 Steel Bar

The 4140 steel bar is a popular choice for industrial applications that require high strength and excellent machinability. This versatile alloy steel is known for its impressive combination of toughness, wear resistance, and impact resistance, making it ideal for a range of applications such as gears, shafts, and studs.

With its medium carbon content, 4140 steel bar can be easily heat-treated to achieve a high tensile strength and yield strength, while its chromium and molybdenum content provide superior wear resistance. Moreover, its excellent machinability allows for easy cutting, drilling, and machining without compromising its strength and durability.

The 4140 steel bar is available in various forms, including round, square, and flat bars, as well as forged or hot-rolled options. This makes it easy to find the right product to meet your specific needs.

Whether you need a material that can withstand heavy loads and harsh environments or one that can be easily machined into complex shapes, the 4140 steel bar is a reliable choice for your industrial applications.

Get Quality Bar Stocks!

Forte Precision Metals is here for you if you need an efficient steel round bar supplier and a centerless ground bar supplier who provides you with quality round bar stocks! We work closely with our clients to ensure that their precision ground bars are delivered to the correct specifications.

Get quality round bar stocks now! Call us or request a quote!

Request A Quote

Contact info

Forte Precision Metals provide Precision Ground Bars & Centerless Ground services nationally and worldwide
Forte Percision Metals, Inc.
9234 Parklane Ave. Franklin Park, IL 60131
Forte Metals Logo