specifications for Fe 550 steel
Fe 550 is a grade of high-strength steel used for construction purposes
- Chemical composition: Fe 550 steel contains iron (Fe), carbon (C), manganese (Mn), silicon (Si), sulfur (S), phosphorus (P), and sometimes other elements in small amounts. The typical chemical composition of Fe 550 steel is as follows: Carbon – 0.30-0.40%, Manganese – 1.50-2.00%, Silicon – 0.20-0.50%, Sulfur – 0.045% max, Phosphorus – 0.045% max.
- Tensile strength: Fe 550 steel has a minimum tensile strength of 550 MPa (MegaPascals), which is approximately equivalent to 80,000 pounds per square inch (psi).
- Yield strength: Fe 550 steel has a minimum yield strength of 500 MPa, which is approximately equivalent to 72,500 psi.
- Elongation: Fe 550 steel has a minimum elongation of 14%, which means it can stretch up to 14% of its original length before breaking.
- Ductility: Fe 550 steel has good ductility, which means it can withstand bending and forming without breaking or cracking.
- Weldability: Fe 550 steel can be welded using various welding methods, but it requires preheating and post-weld heat treatment to prevent cracking and ensure the desired mechanical properties.