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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 2. Crankshaft 3.Bolt 4.Machinery Parts 5. Gear 6. Milling Spindle 7. Nut 8. Slide 9. Steel Collet 10.Steel Conveyor and Roll 11. Steel Coupling 12. Drill Collar 13. Steel Ejector 14. Steel Piston Rod 15. Steel Stub Except for the above 15 applications for steel g...

What is 4140 Steel? AISI 4140 steel is a low alloy steel containing chromium, molybdenum, and manganese. It is widely used across numerous industries and is an excellent material choice due to its toughness, high fatigue strength, and abrasion and impact resistance. Not many grades can match the versatility and usefulness of 4140. 4140 Grade Designation When discussing AISI 4140, it is important to understand what the grade number means: How is 4140 Steel Made? AISI 4140 is made by placing iron, carbon, and other alloying elements into an electric furnace or oxygen furnace. The major alloying elements added to AISI 4140 are: Chromium Manganese Molybdenum Once the iron, carbon, and other alloying elements have been mixed together in liquid form, it is allowed to cool. The steel may then be annealed; possibly several times. After the annealing is complete, the steel is heated to a molten phase again so that it can be poured into the desired for...