10 Common Applications for 4140 Steel

10 Common Applications for 4140 Steel

4140 Steel Applications

There are many 4140 steel applications and when navigating your way to finding a new metal machining carrier/partner, it can be difficult to grasp just what’s out there. What types of metal rods, bars, and tubing are best suited for your facility, and what materials you should be using.

SAE 4140 steel is widely used in many industrial fields for its strength and versatility, and therefore is important to know about if you are considering using it in your facility. Here is an outline of its key characteristics and most common applications.

What is SAE 4140 Steel?

SAE 4140 steel is a low-alloy steel containing chromium and molybdenum as strengthening agents. These give great corrosion resistance and strength up to around 600°.  These characteristics include high strength and good machinability that can easily be heat treated for increased hardness.

4140 Steel Composition

Chromium, Cr 0.80 – 1.10
Manganese, Mn 0.75 – 1.0
Carbon, C 0.380 – 0.430
Silicon, Si 0.15 – 0.30
Molybdenum, Mo 0.15 – 0.25
Sulfur, S 0.040
Phosphorous, P 0.035
Iron, Fe Balance

Do you need a 4140 steel supplier?

We sell 4140 steel hex bar at amazing prices.

What industries use 4140 Steel?

4140 steel is often used in the automotive, agricultural, and defense industries.

What are common 4140 Steel applications?

  1. Shafts
  2. Crankshafts
  3. Bolts/Nuts
  4. Gears
  5. Milling spindles
  6. Collars
  7. Jigs
  8. Steel conveyor and roll
  9. Fixtures
  10. Steel coupling

Machinability of 4140 Alloy Steel

4140 alloy steel hex bar is readily machinable. Simple shapes are easily machined following a normalizing treatment while more complex shapes may require annealing. This steel grade’s carbon level may require a structure of coarse lamellar pearlite to coarse spheroidite for optimum machinability.

Contact us to learn more about 4140 steel applications, and whether it is right for your facility.

We supply 4140 Steel at incredible prices?

Contact us to discuss your requirements.

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