The International Association of Classification Societies (IACS) has formulated a great number of ship - building standards. The main aspects are as follows:

 

Structural Design and Strength Standards

 

Hull Structural Dimensions: It clearly stipulates the dimension requirements of the hull structural components of different types and sizes of ships, such as the steel plate thickness of the ship bottom, side, deck, etc., as well as the dimensions and spacing of frames, beams and other components, so as to ensure that the hull has sufficient strength and stability under various working conditions and can bear loads such as hydrostatic pressure, wave impact force and cargo weight.

 

 

 

Material Standards

 

Steel Quality: It puts forward strict requirements for the chemical composition and mechanical properties of the steel used for ship - building. For example, it stipulates the yield strength, tensile strength, elongation rate, impact toughness and other indicators of the steel to ensure that the steel has good strength, toughness, weldability and other properties to meet the requirements of ships used in complex marine environments.

 

Material Certification: It has established a certification process for steel and other important materials. Only the materials that have passed the certification can be used for ship - building to ensure that the quality and performance of the materials meet the standards formulated by the association.

 

Welding Standards

 

Welder Qualifications: It stipulates the qualifications and skill levels that welders engaged in ship - welding work must possess, including the training, examination and certification requirements of welders, so as to ensure that the welding quality is guaranteed by qualified professionals.

 

 

 

Weld Inspection: It has formulated the methods and standards of weld inspection, including the application requirements of non - destructive testing techniques (such as ultrasonic testing, radiographic testing, etc.), as well as the standards of weld appearance inspection and dimension measurement, to ensure that the weld quality meets the design requirements.

 

Manufacturing and Assembly Standards

 

Component Machining Precision: It puts forward requirements for the machining precision of ship structural components, such as the cutting precision of steel plates, the dimension precision and shape tolerance of components, etc., to ensure that the components can be accurately matched during assembly and improve the overall construction quality of the hull.

 

Assembly Processes: It stipulates the technological processes and technical requirements of ship assembly, including the operation specifications of various links such as block assembly and final assembly, to ensure the assembly precision and overall quality of the hull structure, as well as the ship's lines and dimensions meet the design requirements.

 

Tolerance Control: It clarifies the tolerance range and control methods of the hull structure during the construction process to ensure that the dimension deviations of the ship in different construction stages and different parts are within the allowable range and to ensure the overall performance and appearance quality of the ship.

 

Equipment and System Standards

 

Ship Power System: It has formulated the selection, installation and commissioning standards of the ship's main engine, auxiliary engine and other power equipment to ensure the reliable performance and stable operation of the power system and meet the navigation requirements of the ship.

 

Electrical System: It stipulates the layout, installation, wiring and insulation standards of the ship's electrical equipment, as well as the protection, grounding and lightning protection requirements of the electrical system, to ensure the safety and reliability of the electrical system and prevent the occurrence of electrical accidents.

 

Ship Piping System: It has stipulated the design, manufacturing, installation and test standards of various piping systems of the ship (such as fuel oil piping system, lubricating oil piping system, seawater piping system, fresh water piping system, etc.) to ensure the sealing, patency and reliability of the piping systems and prevent problems such as leakage and blockage.

 

 

 

 

 

 

Steel Standard:
GL,GL rules,other Classification societies such as ABS,LR,DNV,BV,RINA,RS,IRS,KR,NK.
Rolling Size:
Thickness*Width*Length 3-200mm*1220-4200mm*5000-18000mm

 

 

 

Fire - protection, Life - saving and Safety Standards

 

Fire - compartmentation: It clarifies the fire - compartmentation requirements between different areas of the ship, including the setting standards of fire - walls, fire - doors, fire - windows, etc., as well as the performance requirements of fire - proof materials, to prevent the spread of fire inside the ship.

 

Life - saving Equipment: It stipulates the types, quantities, performances and layout requirements of the life - saving equipment that the ship must be equipped with, such as life - boats, life - rafts, life - jackets, etc., to ensure that sufficient life - saving support can be provided for the personnel on board in an emergency.

 

Safety Facilities: It has formulated the standards of the ship's safety facilities, such as the setting requirements of railings, handrails, anti - slip devices, etc., as well as the performance standards of emergency lighting, ventilation systems, etc., to provide a safe working and living environment for the personnel on board.

 

 

 

 

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