The investigation shows that this defect arises from temper brittleness of the steel.

The cold crack sensitiveness and temper brittleness of three pressure vessel steels for high temperature,high pressure and hydrogen environment were compared and analyzed in this article.

Cr Mo steel's temper brittleness is expounded,the affecting factors of temper brittleness of 21/4 Cr 1Mo steel in hydrogenated reactor are analyzed.

Influence of Applied Stress on Temper Embrittlement of 2.25Cr-1Mo Alloy Steel;

Study of reverse temper embrittlement NGS mechanism in steel 12Cr1MoV;

Temper Embrittlement of Steels for Heavy Forging;

Experimental results show that the value of threshold stress intensity factor K_ ISCC of Cr-Mo-V steel is rather low and increases slowly with the rise of tempering temperature when tempered at lower temperature and the fracture mode is mainly intergranular fracture.

Determination of heated band width criterion of local postweld heat treatment for Cr-Mo steel pipe;

This technology test presentation is about procedure test of weld joint property of Cr-Mo steel through normalizing heat treatment, including the tensile strength and impact toughness under low temperature.

Cr-Mo steel exposed to hydrogen gas at 400℃, 20MPa for 105 h were checked for making tensile test, fracture and fatigue test in order to investigate the effect of hydrogen attack on mechanical properties of Cr-Mo steel.