Alloy Steel Flat Bar 4140

Alloy Steel Flat Bar 4140 is a flat shaped, oil-hardening, chromium-molybdenum 4140 steel.

It has good strength and wear resistance, excellent toughness and ductility. 4140 Alloy steel has the ability to resist stress and creep at prolonged high temperatures (up to 1000°F).

4140 Alloy Steel is also available in leaded grades which greatly improves machinability. However leaded grades should not be used in applications where the temperature is elevated. This can cause lower ductility in these grades.

• Machinability: Moderate
• Weldability: Moderate
• Fatigue Resistance: Good

• Ships
• Vehicles
• Aircraft
• Missiles
• Weapons
• Railways
• Bridges
• Pressure vessels
• Machine tools

• Density: 0.284 lb/in3
• Poissons Ratio: 0.29
• Melting point: 2580°F
• Hardness, Brinell: 197
• Elastic modulus: 27557-30458 ksi
• Tensile strength : 95000 psi
• Yield strength: 60200 psi