SAE 1018 Round Bar

About SAE 1018 Round Bar

ST 52.3 is a high-strength low-alloy (HSLA) carbon steel known for its excellent strength, toughness, and weldability. It is commonly used in structural, mechanical, and engineering applications where high load-bearing capacity is required. The bars are supplied hot-rolled and are suitable for machining, fabrication, and construction purposes.

Chemical Composition (Typical %):

• Carbon (C): 0.22%

• Manganese (Mn): 1.35% max

• Phosphorus (P): 0.035%

• Sulphur (S): 0.035%

• Iron (Fe): Balance
  
  

Mechanical Properties:

• Yield Strength: 355 MPa

• Tensile Strength: 470 630 MPa

• Elongation: 20%

• Hardness: 130 170 HB
  
  

Key Features:

• High strength-to-weight ratio

• Good weldability and machinability

• Excellent toughness and durability

• Can be used in normalized or as-rolled condition
  
  

Applications:

• Shafts, axles, and pins

• Construction and structural components

• Mechanical and automotive parts

• Pressure vessels and heavy machinery components