DIN 17102 StE500 is a fine-grained, high-strength structural steel with a yield strength greater than 500 MPa. It is widely used in engineering structures and construction machinery requiring high strength, good weldability, and low-temperature toughness.

Key Features and Advantages

1. High Strength: Compared to ordinary carbon structural steel (such as S235JR), StE500 has higher yield strength and tensile strength, allowing for greater loads in designs while achieving lightweight structures.

2. Fine-Grain Strengthening: Through grain refinement treatment with alloying elements, the steel combines high strength with good low-temperature toughness, weldability, and cold bending performance.

3. Good Weldability: This steel grade is specifically designed for welded structures, has a low carbon equivalent (CEV), low susceptibility to cold cracking, low requirements for welding preheating temperature, and is less prone to post-weld cracking.

Carbon Equivalent (CEV) : 0.38% – 0.43%.

* Calculate using the standard formula recommended by the International Institute of Welding (IIW): CE = C + Mn/6 + (Cr+Mo+V)/5 + (Ni+Cu)/15.