Dnv. Gl Certificate Structural Steel Shipbuilding Plate

 

What are the specific advantages of the mechanical properties of CCS in construction compared with traditional power plant structural materials?

 

I. Overview of the Mechanical Properties of CCS in Construction

 

Carbon Capture and Storage (CCS) technology is mainly used to reduce greenhouse gas emissions, but it also has certain application potential in the construction field. When it comes to building structures, CCS - related technologies or materials may exhibit unique mechanical properties. For example, in an offshore CCS project, the cement sheath around the wellbore serves as the first - level barrier between the wellbore and the CO₂ reservoir and plays a crucial role in the wellbore integrity of injection wells. Good cementing operations and cement system design are important guarantees for the sustainable operation of CCS projects, which also reflects the requirements for mechanical properties of CCS technology in specific construction scenarios.

 

II. Mechanical Property Characteristics of Traditional Power Plant Structural Materials

 

Traditional Low - Alloy Steel: In the 20th century, the creep strength of low - alloy steel based on chromium and molybdenum alloying was a key factor in the development of the power generation industry. The structure and performance of low - alloy steel have their specific specifications and design stress information. Different regions such as the United States, Europe, and Japan have different standards. However, for specific components, it should be noted that the creep strength of welded parts may become a life - limiting factor.

 

Steel Structural Support Frame: In the design of the main power plant building of a thermal power plant, the steel structural support frame system has its unique applications. Taking the Zouxian Thermal Power Plant as an example, the column grid layout of the main building of this system is reasonable and can better meet the seismic performance requirements of the main building of the thermal power plant.

 

 

 

 

Grade A shipbuilding steel Mechanical Property

Grade	Rm (MPa)	Re(MPa) min	A% min	Akv/J min
Grade A shipbuilding steel	400-520	235	22	E.T °C	Thickness (mm)
				20	≤ 50		>50-70		>70-100
					L	C	L	C	L	C
					-	-	34	24	41	27

 

 

 

 

 

 

 

 

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