Description
SAE 4140 Plate & Sheets (AISI 4140)
SAE 4140 is a widely used Chromium-Molybdenum alloy steel, known for its ability to develop a broad range of hardness and strength. The plate undergoes thermal treatments like quenching and tempering, significantly improving its mechanical properties. This steel is recognized for its high tensile strength, toughness, and excellent wear resistance, making it ideal for demanding applications.
Key Features:
- High Tensile Strength: Offers great resistance to fatigue and impact.
- Wear Resistance: Known for its ability to resist wear in high-stress conditions.
- Quenching and Tempering: Enhances the hardness and strength of the steel.
Applications:
- Tooling: Back-up and support tooling, mold bases.
- Machinery Parts: Gears, shafts, spindles, gear racks.
- Automotive Industry: Crankshafts, connecting rods.
- Oil & Gas Industry: Used in high-impact areas due to its toughness and strength.
Benefits of Using SAE 4140 / EN19:
- Strength: Extremely strong, suitable for heavy-duty applications.
- Toughness: Withstands impact without breaking or deforming.
- Machinability: Despite its high strength, it is relatively easy to machine.
Chemical Composition:
- Carbon (C): 0.38 – 0.43%
- Manganese (Mn): 0.75 – 1.00%
- Chromium (Cr): 0.8 – 1.1%
- Molybdenum (Mo): 0.15 – 0.25%
Equivalent Grades:
- EN19: 42CrMo4
- AISI/SAE: 4140
- DIN: 1.7225
