GB/T 3098.17-2000
Mechanical Properties of fasteners-Preloading test for the detection of hydrogen embrittlement-Parallel bearing surface method (English Version)

Standard No.

GB/T 3098.17-2000

Language

Chinese, Available in English version

Release Date

2000

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Latest

GB/T 3098.17-2000

Scope

This standard specifies the preload test method for checking the hydrogen embrittlement of fasteners at room temperature. This standard applies to: a) bolts, screws and studs; b) self-extruding screws; c) self-tapping screws; d) self-tapping screws; Drilling self-tapping screws; e) Nuts f) Washers These fasteners are made of steel and are subjected to tensile stress. The temperature range of this experiment is 10-35 degrees. This experiment is only suitable for process control and can be carried out after any manufacturing process, but it is not an item of acceptance test. This experiment enables the evaluation of process state and technical state differences and changes, and determines the different effects of different processes, including pre-plating treatment and post-plating treatment (baking) to reduce free hydrogen in fasteners. Manufacturers and process personnel are not relieved of their responsibility to adopt and monitor process controls because of this experiment.

GB/T 3098.17-2000 history

• 2000 GB/T 3098.17-2000 Mechanical Properties of fasteners-Preloading test for the detection of hydrogen embrittlement-Parallel bearing surface method

GB/T 3098.17-2000 -All Parts