Quality level ISO 5817 B
ISO 5817 B is a strict evaluation group for welded joints with minimal imperfections. It's used in highly stressed structures under dynamic load.
Physical-Chemical Action Mechanism
ISO 5817 B defines strict quality standards for welded joints. No irregularities are allowed and it requires high precision in performing the welding process.
Metallurgical Relevance & Welding Risks
Assessment group B demands a high level of precision and quality. Some risks are:
• Insufficient cleanliness of the weld pool leads to porosity and reduced strength.
• Inaccuracies during welding can lead to uneven stresses and cracks.
Workshop Practice & Action Instructions
To meet ISO 5817 B, the following measures must be taken:
• Use high-quality welding materials and processes.
• Ensure the weld pool is clean and free from porosity.
• Keep welding parameters (temperature, pressure) tightly under control.
• Thoroughly inspect the weld after the process for irregularities.