What is the 20MnHR steel?

20MnHR steel is a steel plate for pressure vessels with excellent strength and toughness and weldability. The operating temperature ranges from room temperature to -20°C. 20MnHR is mainly used to manufacture high-parameter pressure vessels. At present, the company has developed a series of steel plate materials for the manufacture of equipment for various purposes in nuclear power plants.

Delivery status: steel plate is delivered in normalizing state, normalizing temperature: normalizing temperature 910±10℃, holding time 1.5min, air cooling.

Production process: The steel is smelted by electric furnace or electric furnace + external refining method, using calm pouring.

Application range of 20MnHR steel plate:

20MnHR steel plate is used in petroleum, chemical industry, power station, boiler and other industries to make reactors, heat exchangers, separators, spherical tanks, oil and gas tanks, liquefied gas tanks, nuclear reactor pressure shells, boiler drums, and liquefied petroleum gas cylinders , High-pressure water pipes of hydropower stations, turbine volutes and other equipment and components often use this grade of steel.