Stress corrosion cracking TECH. DOCUMENTATION Stress corrosion cracking - No more!Brass is a versatile and economical material. The quality of brass used in SERTO unions is checked regularly according to DIN standards. The parts, which are subjected to tensile stress, are heat treated in a special process, thus relieving the stress. Under unfavourable conditions, stress corrosion cracking can occur. Cracks suddenly appear on the component, without any previously discernible signs.
Three conditions must be present simultaneously to trigger such a rare occurrence of damage:
Ammonia compounds in hazardous concentrations can be found, for example, in pump shafts, concealed installations, in agricultural and electroplating installations. The possibility of stress corrosion cracking cannot therefore be completely excluded. It can, however, be prevented by taking appropriate measures.
Stress corrosion cracking can be prevented effectively with these measures. The cost for this protection is low, compared to the possible consequences of damage.