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:

Stripperstool holdersholder blocks
tool bodiesbolsterscouplings
machinery parts and componentsmold basesconveyor parts
connecting rodstie rodschuck bodies
boring barsreamer bodiesback up and support tooling
axlescrow barsguides
logging partsfixturesejector pins
conveyor pins & rollstracksmolds
jigsramspump shafts
wayssprocketstorsion bars
hydraulic machinery shaftsforksgear racks
guide rodscamsbrake dies
drill collarswear strips or partsspindles
forming diessprocketsarbors
chain linksring gearspinch bars
adapterslathe spindlessockets
logging partsvalvesmotor shafts
pinstrim diespinions
wormstool holderspump 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