CCS/BV/ABS Standard Hot Rolled Ship Building Steel Plate

CCS (China Classification Society), BV (Bureau Veritas), and ABS (American Bureau of Shipping) standard hot-rolled shipbuilding steel plates are marine structural steels compliant with international and domestic classification society codes. They are characterized by high strength, good toughness, and corrosion resistance, widely used in shipbuilding and offshore engineering. Below is a detailed overview:

1. Standards and Certifications

China Classification Society (CCS)

Compliance: GB/T 712 "Structural Steel for Ships and Offshore Structures" or CCS "Rules for Materials and Welding".

Requirement: Plates must pass CCS certification to meet Chinese shipbuilding and classification requirements.

Bureau Veritas (BV)

Compliance: BV "Rules for the Classification of Ships".

Requirement: Plates must adhere to BV's strict specifications for mechanical properties, chemical composition, and production processes.

American Bureau of Shipping (ABS)

Compliance: ABS "ABS Building and Classing Rules for Steel Vessels".

Requirement: Certified by ABS for international navigation vessels and shipbuilding in the U.S.

2. Common Grades and Mechanical Properties

Take high-strength marine steel as an example (e.g., AH32, AH36, DH36; "A" denotes Grade A steel, "D" Grade D steel, and the number indicates the yield strength level):

 

Grade	Yield Strength (ReH)	Tensile Strength (Rm)	Impact Test Temperature	Impact Energy (KV2)
AH32	≥315 MPa	440–570 MPa	0℃	≥34 J
AH36	≥355 MPa	490–630 MPa	0℃	≥34 J
DH36	≥355 MPa	490–630 MPa	-20℃	≥34 J

 

Notes:

"H" in the grade indicates "High Strength". Some grades require Z-directional properties (e.g., Z25, Z35) for thick plates to resist lamellar tearing.

Mechanical properties must be verified by third-party testing agencies accredited by classification societies.

 

 

 

 

 

 

 

 

 

 

 

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