Understanding the Chemical Composition and Mechanical Properties of HC340LA Steel Grade

Chemical Composition:
– Carbon (C): ≤0.15%
– Manganese (Mn): 1.20-1.50%
– Phosphorus (P): ≤0.025%
– Sulfur (S): ≤0.015%
– Silicon (Si): 0.50-0.80%
– Aluminum (Al): ≥0.015%

Mechanical Properties:
– Tensile Strength: 410-510 MPa
– Yield Strength: ≥340 MPa
– Elongation: ≥23%
– Hardness: ≤170 HB

HC340LA is a high-strength, low-alloy steel with good formability and excellent weldability. It is commonly used in automotive applications for the production of structural parts. Its chemical composition and mechanical properties make it suitable for forming and welding processes while providing good strength and toughness.