Double flange transfer joint used in tap water project

The role of stress corrosion resistance of double flange force transfer joints varies with the experimental media conditions and the actual use environment. In MgCl2 boiling solution, the role of chromium is generally harmful, but in aqueous media containing Cl- and oxygen, high temperature and high pressure water as well as pitting corrosion as the origin of stress corrosion conditions, increasing the chromium content in double flange force transfer joints is beneficial to stress corrosion resistance, and at the same time, chromium can also prevent double flange Transfer joints and alloys due to the increased content and the tendency of intergranular type stress corrosion, on the open caustic stress corrosion. The effect of double flange force transfer joints especially on the mechanical properties of chromium-negative bifurcation joint is mainly determined by the effect on the stability of the double flange force transfer joint. Within the range of content in the double flange force transfer joint where pipeline transformation may occur, as the content increases, the strength of the double flange force transfer joint decreases page plasticity increases, and the toughness of the double flange force transfer joint with stable double flange force transfer joint organization (including low temperature The toughness (including low-temperature toughness) of double-flange force transfer joints with stable double-flange joint organization is very good, and thus can be used as low-temperature double-flange force transfer joint.
 
For the chrome manganese double flange transfer joint with stable double flange transfer joint organization, the addition of can further improve its toughness, but also significantly reduce the cold working hardening tendency of the double flange transfer joint, which is mainly due to the stability of the double flange transfer joint, reduce or even eliminate the cold working process of the pipe transformation, while the cold working hardening of the double flange transfer joint itself is less obvious.
The effect of cold working hardening tendency of double flange force transfer joint, reduce the cold working hardening rate of double flange force transfer joint, and reduce the room temperature and low temperature strength of double flange force transfer joint, improve the role of plasticity, determine the content of the increase is conducive to the cold working forming performance of double flange force transfer joint.
In the double flange force transfer joint, the addition of and with the increase in content, resulting in an increase in the thermodynamic stability of the double flange force transfer joint, so the double flange force transfer joint has better sex and resistance to oxidizing media, and with the increase in content, the performance of reducing media resistance is further improved, it is worth pointing out that it is still an important element to improve the resistance of the double flange force transfer joint to many media through crystalline stress corrosion.