Boiler And Pressure Vessel Steel Plate

Common sizes of different material grades:

Main Features

1. 1.High strength and toughness
   can withstand high pressure environments, while also having good impact and fatigue resistance to avoid brittle fracture.
2. 2.High temperature resistance
   The mechanical properties (such as creep resistance) remain stable at high temperatures, and some materials can work for a long time at temperatures above 500°C.
3. 3.Excellent weldability:
   It is not easy to produce cracks after welding. The weld area needs to match the performance of the parent material, which is suitable for automated welding process.
4. 4.Corrosion resistance:
   It can resist corrosion from water vapor, hydrogen sulfide, acid and alkali media, etc. In special environments (such as nuclear power), alloy elements (such as Mo and Cr) need to be added.
5. 5.The processability
   is easy for hot and cold processing such as rolling and stamping, reducing the risk of defects in the manufacturing process.

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Common grades
Chinese Standard (GB/T 713)

International Standards

Main Application

1. Boiler field
2. 1.Power station boiler: boiler drum, water-cooled wall, superheater.
• 2.Industrial boilers: furnace core and steam drum.
• 3.Nuclear power equipment: containment, steam generator support structure.
3. Pressure vessel field
• 1.Petrochemical industry: reactors (such as hydrogenation reactors), towers, storage tanks (9Ni steel is used for LNG cryogenic storage tanks).
• 2.Energy industry: spherical tanks (oxygen and nitrogen storage), heat exchangers.
• 3.Special applications: nuclear reactor pressure vessel (radiation-resistant materials required), aerospace fuel tanks.
4. Other pressure equipment
• 1.Pipeline system: high pressure transmission pipeline.
• 2.Environmental protection equipment: absorption tower in flue gas desulfurization device.