S355JR / 1.0045 Structural Steel

Steel Hexagon 1.0045 / 17G1S / S355JR

Steel 1.0045 (17G1S / S355JR) is a structural low-alloy steel known for its high strength, good weldability, and impact resistance. It is widely used in construction, mechanical engineering, and various industrial applications.

Key Material Characteristics

• High strength – excellent load-bearing capacity
• Good weldability – easy to work with during fabrication
• Impact resistance – retains strength at low temperatures
• Corrosion resistance – performs well in atmospheric conditions
• Versatile application – suitable for different industrial sectors

Applications

• Structural components – beams, columns, and frameworks
• Machinery manufacturing – parts for heavy-duty equipment
• Bridges and infrastructure – used in construction projects
• Pipeline systems – suitable for fluid and gas transportation
• Automotive and shipbuilding – high-strength structural elements

Chemical Composition

The balanced composition of carbon, manganese, and silicon ensures strength, ductility, and weldability.

Mechanical Properties

• Yield strength: ≥ 355 MPa
• Tensile strength: 470-630 MPa
• Elongation: ≥ 17%
• Impact energy (at -20°C): ≥ 27 J
• Hardness: ≤ 180 HB

Advantages of S355JR Steel Hexagon

✅ High strength and durability – ensures long service life
✅ Excellent weldability – easy to fabricate and process
✅ Impact resistance at low temperatures – suitable for extreme conditions
✅ Corrosion resistance – performs well in various environments
✅ Versatile industrial applications – ideal for construction, machinery, and transportation

Steel 1.0045 (17G1S / S355JR) is an optimal choice for industries requiring strong, reliable, and weldable structural steel components.

Steel hexagon delivery form 1.0045 / S355JR