Cast Iron is suitable for boiler construction material up to how many kPa?

Cast iron is recognized for its durability and resistance to corrosion, making it a popular choice for specific components in boiler systems. However, its suitability as a construction material is limited by pressure capabilities. Generally, cast iron can safely handle pressures up to 120 kPa in boiler applications. This threshold is due to factors such as its brittleness under tension and inability to withstand high stress concentrations, particularly at elevated temperatures and pressures.

Utilizing cast iron beyond this pressure limit may lead to failure or catastrophic incidents, as it may not be able to cope with the stress involved. Therefore, when considering materials for boiler construction, it is crucial to adhere to these guidelines to ensure safe operation and adherence to standards.