15 Common Applications for Versatile 4140 Steel

AISI 4140 steel grade is a versatile steel grade. 4140 material is widely used in a lots of industrial fields. It is a chromium-molybdenum alloy steel. The chromium content provides good hardness penetration, and the molybdenum content ensures uniform hardness and high strength. ASTM 4140 chrome-molybdenum steel can be oil hardened to a relatively high level of hardness. The desirable properties of the AISI steel 4140 include superior toughness, good ductility and good wear resistance in the quenched and tempered condition.

Here we list 15 common applications for 4140 steels material:

  1. Shaft

steel shafts


2. Crankshaft

4140 steel crankshaft



4140 steel bolt

4.Machinery Parts

4140 steel machinery parts

5. Gear

4140 steel gear


6. Milling Spindle

4140 milling spindle


7. Nut


8. Slide

steel slide


9. Steel Collet

4140 steel collet

10.Steel Converyor and Roll

4140 steel conveyor and roll


11. Steel Coupling

4140 steel coupling


12. Drill Collar

steel drill collars

13. Steel Ejector

steel ejector


14. Steel Piston Rod

4140 steel piston rod


15. Steel Stub

4140 steel stub

Except for the above 15 applications for steel grade 4140 materials, it’s also used as:

Strippers tool holders holder blocks
tool bodies bolsters couplings
machinery parts and components mold bases conveyor parts
connecting rods tie rods chuck bodies
boring bars reamer bodies back up and support tooling
axles crow bars guides
logging parts fixtures ejector pins
conveyor pins & rolls tracks molds
jigs rams pump shafts
ways sprockets torsion bars
hydraulic machinery shafts forks gear racks
guide rods cams brake dies
drill collars wear strips or parts spindles
forming dies sprockets arbors
chain links ring gears pinch bars
adapters lathe spindles sockets
logging parts valves motor shafts
pins trim dies pinions
worms tool holders pump shafts


At the same time, you could watch the heat treatment process, which is usually required for 4140 steel material.

You may need properties of 4140 steel here for comparison of 4140 vs 42crmo4 vs SCM440 steel grade.

You could reach us whenever you will need AISI 4140 steel materials. If you have any queries about 4140 steel materials, please just leave a comment below.

2016-12-10T11:29:40+00:00 December 10th, 2016|Tags: , |Comments Off on 15 Common Applications for Versatile 4140 Steel