GB/T 46654-2025 Active National standards

GB/T 46654-2025 Radiographic testing for titanium alloy castings—Defect levels

Publish Date: 2025-10-31 Implement Date: 2026-05-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: GB/T 46654-2025

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Casting

ICS Name: Ti and Ti alloys

Publish Date: 2025-10-31

Implement Date: 2026-05-01

Pages: 36 pages

Scope

This document specifies the basic requirements for radiographic inspection of titanium and titanium alloy castings (hereinafter referred to as "castings"), and describes the corresponding methods for defect grading and grade evaluation.
This document is applicable to the grading of gas porosity, inclusions, and shrinkage defects in titanium alloy castings with a thickness of not more than 50.8 mm. Castings with a thickness of more than 50.8 mm shall be implemented in accordance with this document.
This document is not applicable to the grading of defects such as cracks, segregation, cold shut, and welding defects caused by welding failure and lack of fusion.