ASTM A350 LF6 (Class 1) / 1.1106 Structural Steel

Steel circle delivery forms A350 LF6 (Class 1)

Steel circle A350 LF6 (Class 1)

Steel A350 LF6 (Class 1) is a low-alloy carbon steel known for its excellent mechanical properties, weldability, and toughness at low temperatures. It is widely used in pressure vessel applications, piping, and structural components.

Key Material Characteristics

• Good toughness at low temperatures – suitable for cryogenic applications
• High strength and durability – excellent for heavy-duty applications
• Good weldability – allows easy fabrication
• Resistant to impact loads – ensures reliability in harsh environments
• Stable mechanical properties – maintains integrity under pressure

Applications

• Pressure vessels – used in industries requiring high strength and durability
• Pipeline components – ideal for fluid transportation under varying pressures
• Structural components – utilized in heavy-duty construction and infrastructure
• Flanges and fittings – commonly used in pipeline and valve systems
• Cryogenic applications – suitable for extremely low-temperature environments

Chemical Composition

The balanced composition of carbon, manganese, and silicon enhances the strength, toughness, and weldability of the steel.

Mechanical Properties

• Yield strength: ≥ 250 MPa
• Tensile strength: 485-655 MPa
• Elongation: ≥ 22%
• Impact toughness: ≥ 27 J at -50°C
• Hardness: ≤ 197 HB

Advantages of A350 LF6 (Class 1) Steel

✅ High strength and durability – ensures long service life
✅ Excellent low-temperature toughness – ideal for cryogenic applications
✅ Good weldability and machinability – easy to fabricate and process
✅ Resistance to impact loads – suitable for demanding environments
✅ Reliable structural stability – maintains performance under pressure

Steel A350 LF6 (Class 1) is a reliable choice for industries requiring a balance of strength, toughness, and weldability, making it ideal for applications in pressure vessels, pipelines, and structural engineering.