Is radiographic inspection required for the weld joints between the flange and the head?

2025-02-14View Original

Thread Content

GB/T150.4-2024 specifies radiographic or ultrasonic testing for the weld joints between the nozzles and the vessel heads. It also specifies whether radiographic or ultrasonic testing is required for the weld joints between the flanges and the heads; if so, should the diameter used be the outer diameter or the inner diameter?

Reply #22025-02-14

Flanges and heads are generally butted welds, and are classified as Class A welds.

Reply #32025-02-14

According to the provisions of GB/T150.4-2024, the weld joints between the flange and the head shall be subject to radiographic or ultrasonic testing. During testing, the diameter is calculated based on the outer diameter. .

Reply #42025-02-14

If it belongs to a Class D weld joint and the joint is not of a fully penetrated structure, then no testing is required.

Submit a Project

**Looking for Chemical Technology, Equipment & Solutions?** No Registration Required Broader Platform Exposure | Global Chemical Service Provider Connections

Submit Request — Free Consultation

Disclaimer

This is an automated machine translation of the original thread. Some technical terms may have inaccuracies; the original text shall prevail. Click "View Original" at the top right to access the source page, which supports IP-based automatic real-time language translation. Please watch out for contact details and sales inducements to prevent fraud. All content and translations are for reference only, representing solely the poster's personal views. For enquiries, email service@hcbbs.com.

Is radiographic inspection required for the weld joints between the flange and the head?

Thread Content

Related Threads in This Forum

← Previous

Next →

Submit a Project

Disclaimer

Quick Links