SAE 4130 Alloy Steel Round Bars

SAE 4130 Alloy Steel Round Bars has good machinability and hence it is used to make machine parts such as arms, rollers, crankshafts, gears, etc.

SAE 4130 Alloy Steel Round Bars is used in the automobile industry, aviation industry, automotive industry, oil and gas industry, shipbuilding industry, etc.

4130 alloy steel round bars are highly regarded for their excellent combination of strength, toughness, and weldability, making them suitable for various applications across industries. Here are the details:

Chemical Composition:

Mechanical Properties:

• Tensile Strength: Typically 560 - 760 MPa
• Yield Strength (0.2% offset): Typically 460 - 620 MPa
• Elongation at Break: Typically 20 - 30%
• Hardness (Brinell): Typically 156 - 207 HB

Heat Treatment:

• Annealing: 815°C - 900°C, furnace cooling
• Normalizing: 870°C - 925°C, air cooling
• Hardening: 845°C - 900°C, oil quenching
• Tempering: 400°C - 650°C, air cooling

Applications:

• Aerospace components
• Aircraft structures
• Automotive parts
• Bicycle frames
• Firearms
• Machinery components
• Oil and gas industry components

4130 alloy steel round bars are known for their versatility and are commonly used in applications where high strength, toughness, and weldability are required. Proper heat treatment is essential to achieve the desired mechanical properties for specific applications.