The difference between S500Q steel plate and S500QL steel plate

S500Q steel plate is European standard high-strength structural steel, referred to as high-strength steel.

The phosphorus and sulfur content of S500QL steel plate is different.

The phosphorus and sulfur content of S500Q steel plate is P:≤0.025, S:≤0.015; the sulfur and phosphorus content of S500QL steel plate is P:≤0.020, S:≤0.010.

The impact temperature is also different, S500Q steel plate is impacted at -20°C, and S500QL is impacted at -40°C. S500Q steel plate and S500QL steel plate executive standard: EN10025-6

S500Q steel plate and S500QL steel plate heat treatment delivery status: quenching and tempering (quenching + tempering)

Smelting method of S500Q steel plate and S500QL steel plate Converter/electric furnace steel making→LF furnace refining→VD furnace vacuum degassing→continuous casting/die casting/electroslag→cleaning and heating→rolling→flaw detection→heat treatment→steel plate finishing→sampling→performance inspection