Quality control of EN10025 S235JR steel

Keeping EN10025 S235JR consistent requires a tight quality control system from melt to dispatch. It starts with chemical analysis – spectrometers check carbon, manganese, phosphorus, and sulfur against EN 10025 limits. Any deviation, and the heat gets adjusted or rejected.

During casting and rolling, temperature control is critical. Pyrometers and thermal cameras monitor reheating and rolling passes. Incorrect temperatures alter grain structure and weaken yield strength.

Mechanical testing happens after rolling. Tensile tests confirm yield strength (≥235 MPa) and elongation. Bend tests check ductility. Impact tests at +20°C verify Charpy energy (≥27J). All results get documented in material test certificates (MTC) .

Finally, dimensional inspection ensures thickness, flatness, and edge condition meet order specs. Visual checks catch surface defects like lamination or scaling.

Regular audits of the entire process – from raw materials to shipping – keep S235JR reliable and traceable.