1、 Core application areas

1. Petrochemical and chemical industry

Corrosive medium transportation: used for connecting highly corrosive fluid pipelines such as chlor alkali, sulfuric acid, nitric acid, etc. Titanium flanges can significantly maintain frequency and extend system life.

High temperature and high pressure system: titanium alloy flanges are required for cracking equipment, reaction vessels and other scenarios, and their creep resistance remains stable at high temperatures of 300-600 ℃.

2. Aerospace field

Engine and Fuel System: Titanium alloy flanges are used in aviation engine combustion chambers, fuel injection systems, and hydraulic pipelines, and their lightweight characteristics can improve fuel efficiency.

Spacecraft and rockets: Low temperature toughness and radiation resistance of titanium alloy are required for liquid oxygen/liquid hydrogen transport pipelines and propulsion systems.

3. Ocean Engineering and Shipbuilding

Desalination of seawater and salt spray environment: TA2 titanium flange is resistant to seawater erosion and salt spray corrosion, suitable for scenarios such as offshore platforms and ship ballast water systems.

Non magnetic requirement: The non-magnetic properties of titanium flanges can avoid interference from ship navigation equipment.

Non magnetic testing equipment: In precision instruments such as nuclear magnetic resonance, titanium flanges are used to avoid electromagnetic interference.

2、 Select key elements

1. Material adaptability

Strong corrosive environment: TA9 or Gr7 are preferred as they have better resistance to pitting and crevice corrosion.

High temperature and high pressure: Titanium alloy TC4 can maintain strength stability below 600 ℃ and is suitable for high-temperature petrochemical pipelines.

Conventional lightweight scenario: TA1/TA2 pure titanium has lower cost and is suitable for general industrial pipelines.

2. Structural form and sealing design

High pressure system: using butt welded flanges with ring connection surface sealing, with a pressure bearing capacity of PN ≥ 10.0MPa.

Frequent maintenance scenario: The loose flange facilitates disassembly and assembly, reducing maintenance costs.

Low pressure small-diameter pipelines: threaded flanges or socket welding flanges can save costs.

3. Process and Testing Standards

Forging grade: Grade III forgings are mandatory for use in ultra-high pressure scenarios.

Testing requirements: Ultrasonic testing and dimensional tolerance testing are required.