Standard Test Method for Qualifying Coatings for Use on F3125 Grade A490 Structural Bolts Relative to Environmental Hydrogen Embrittlement

Importancia y uso:

4.1 This test method describes the testing procedure that shall be used to qualify a coating system that is under consideration for use on ASTM F3125 Grade A490 high strength structural bolts made of any steel composition permitted by the F3125 specification for Grade A490 bolts. The test method measures the susceptibility of coated specimen bolts to the influence of an externally applied potential (see 7.2.3.3) by testing for the threshold of embrittlement in a salt solution environment.

Subcomité:

F16.01

Referida por:

F3043-23, F3125_F3125M-23, F3393-24, F3111-23

Volúmen:

01.09

Número ICS:

21.060.10 (Bolts, screws, studs)

Palabras clave:

environmental hydrogen embrittlement; galvanic potential; high strength bolts; hydrogen embrittlement; open circuit potential; salt solution; threshold stress;