sTEEL

#THE BEST COMPROMISE

Steel is one of the most commonly machined materials in our workshops. As a daily staple for manufacturers, it offers an excellent balance of mechanical strength, machinability, and cost. Thanks to its many grades and the wide range of heat and surface treatments available, it’s suitable for a vast variety of applications.

Tons of steel machined each year
0

Used in industries as diverse as automotive, aerospace, medical, and electronics, steel allows for the production of robust, precise, and durable parts.

 

At Meunidec, we manufacture custom steel components in small to medium series, applying strict technical standards. Our expertise in alloy and non-alloy steels, combined with our high-performance machinery, allows us to guarantee parts that are perfectly compliant with your requirements.

 

Why choose steel for your machined parts? Because it provides an excellent balance of strength, precision, and cost control. Thanks to various heat treatments, the mechanical properties can be custom-adjusted to suit your specific application.

We’ll work with you to choose the most suitable grade for your project, based on:

🔹The mechanical stresses the part must withstand

🔹The operating conditions (heat, corrosion, friction)

🔹The potential heat treatments

🔹The economic viability of your project

 

✔ Advantages

  • Very good mechanical strength: Hardness, wear resistance, and resistance to shock and stress.
  • Good machinability: Facilitates turning, drilling, and milling operations.
  • Customizable heat treatments: Quenching, tempering, and case hardening to meet specific requirements.
  • Versatility: A material suitable for almost all industrial environments.
  • Wide choice of grades: Mild steels, alloy steels, treated steels, and free-cutting steels.

⚠  Limitations

  • High weight: 3 times denser than aluminum.
  • Limited corrosion resistance: Requires surface treatment or protection in corrosive environments.
  • Critical grade selection: Performance varies significantly depending on the composition and treatment.

Most common steel grades used in precision machining


Standard free-cutting steels: Good machinability, suitable for technical series.

Alloy steels: Designed for significant mechanical stress or specific constraints.

Heat-treated steels: Used to achieve hardness, fatigue resistance, or wear resistance.

 

Typical applications of steel in precision machining


Automotive: Camshafts, fasteners, steering, or suspension components.

Aerospace: High-performance fasteners, engine parts, structural components.

Medical: Clamps, drills, valves, and medical equipment components.

Electronics: Pins, contacts, and connector parts.

Watchmaking: Fine screws, pivots, and movement components.

Construction: Fasteners, tools, and industrial screws.

Sports & Leisure: Bicycle parts, ski bindings, and mechanical components.

European designationFrench designation
11SMnPb371.0737S300Pb
11SMn371.0736S300
11SMnPb301.0718S250Pb
11SMn301.0715S250
European designationFrench designation
C151.0401 
C15Pb1.1140 
C351.0501XC38
C35Pb1.0502XC38Pb 
C451.0503XC48
C45Pb1.1195XC48Pb
European designationFrench designation
16MnCr51.713116MC5
16NiCr41.571416NC6
20MnCr51.714720MC5
25CrMo41.721825CD4
36SMnPb141.076535Mf6Pb
34CrMo41.722034CD4
38Smn281.076038MF5
42CrMo41.722542CD4
44SMn281.076245MF6.3 
100Cr6 1.3504100C6
ETG881.0762 
ETG1001.0762 
+33(0)450347056