Hydrogen Embrittlement A Silent Risk in High-Strength Fasteners: What the Industry Should Know
- Posted by: Admin
- 2025-03-25
Fasteners with tensile strength above 1100 MPa or hardness exceeding HRC 33 are known to be sensitive to hydrogen-related issues that can lead to delayed failure under load.
The risk increases significantly when surface treatments involve certain galvanizing or electrochemical processes. These treatments may unintentionally introduce hydrogen into the material, which can migrate into the steel matrix and initiate sub-surface cracks.
Affected products may include ASTM A490 bolts, Grade 10.9 threaded rods, and similar high-grade components used in structural and load-critical applications.
Detection is difficult, and failure can be sudden. Selection of both base material and coating method is crucial.
Our technical team provides support in evaluating these risks and offering suitable alternatives. If you are working on a project involving high-strength fasteners, reach out for a deeper assessment based on your application.
Keep your connections safe. Not all issues are visible.
Contact us for more informations
info@brightstarllc.ae