Marine Aluminum Elbow for Pressurized Water Systems on Ships

  • 2025-07-25 16:26:15

Marine aluminum elbows are critical components in the piping systems aboard ships, particularly within pressurized water supply lines. These fittings are designed to allow a smooth change of direction in piping layout, typically at 45° or 90°, without compromising mechanical integrity or further increasing system stress. Our Marine Aluminum Elbow series meets the stringent requirements of naval architecture and maritime engineering, promising longevity, light weight, and exceptional performance in harsh sea environments.

Material Specifications & Chemical Composition

Our marine aluminum elbows are manufactured from high-quality alloys categorized under the widely accepted marine aluminum grades such as 5083-H116 and 6061-T6. These alloys provide balanced strength and corrosion resistance, essential for saltwater exposure.

AlloyMajor Alloying Elements (wt%)Standards Compliance
5083-H116Al, Mg (4.0-4.9), Mn (0.4-1.0), Fe (0.4 max)IMO RESOLUTION MSC.215(82), ASTM B928
6061-T6Al, Mg (0.8-1.2), Si (0.4-0.8), Fe (0.7 max)ASTM B241, ISO 6362

Engineering Parameters

ParameterValue / Range
Elbow Angles45°, 90° standard options
Pressure RatingUp to 50 bar (725 psi)
Temperature Operating Range-40°C to 120°C
Wall Thickness3mm to 10mm depending on size
Standard Pipe Sizes AvailableDN15 to DN100 (1/2" to 4")
Surface TreatmentMarine-grade anodized or painted
Joining MethodsTIG/MIG welding or Mechanical Flanged
Weight ReductionUp to 40% less than steel carcass

Implementation Standards & Certification

To guarantee end-product reliability and safety onboard sea vessels, our Marine Aluminum Elbow undergoes rigorous testing and quality assurance processes, complying with the following industry standards:

  • IMO MSC.215(82): International Maritime Organization criterion for materials and fabrication.
  • ABS (American Bureau of Shipping): Certification ensures mechanical characteristics satisfy maritime vessel class requirements.
  • ASTM B928 / B241: Aluminium alloy pipes and fittings standards pertinent to marine chemical composition and structural integrity.
  • ISO 6362: Standards for aluminum tubes and fittings used in ships.

Alloy Tempering and Mechanical Properties

Different tunings (tempers) of aluminum alloys impact mechanical strength and flexibility. Typical temper states used in marine aluminum elbows include:

AlloyTemperTensile Strength (MPa)Yield Strength (MPa)Elongation (%)Corrosion Resistance
5083H116275-310125-215~12Excellent resistance to seawater corrosion
6061T6290-310240-2708-10Good corrosion resistance; anodized finish recommended

Advantages of Marine Aluminum Elbow in Ship Systems

  • Corrosion Resistance: Alloy chemistry provides excellent stiffness and prevents saltwater-induced aging.
  • Lightweight: Less dense than steel, aluminum elbows contribute to considerable weight savings in ship superstructures.
  • Reduced Maintenance: High durability minimizing failure and maintenance turnout.
  • Ease of Installation: Superior weldability and machinability with standard stainless fastener compatibility.
  • Thermal Conductivity: Enables reduced thermal build-up in pressurized systems, beneficial for fluid handling efficiency.

Typical Applications

  • Freshwater and sea water cooling systems on ships and offshore platforms.
  • Fire fighting water piping circuits where corrosion resistance and system integrity are critical.
  • HVAC chilled water systems on marine vessels subject to cyclic temperature fluctuations.
  • Evaporator feed lines in desalination plants onboard ships.
author image
Lucy

Explore our high-grade Marine Aluminum Elbow designed specifically for pressurized water systems onboard ships. Engineered for superior corrosion resistance, durability, and compliance with maritime standards, this product ensures reliable fluid dynamics

Leave a Message

Related Products

Marine aluminum square tubes

Marine Grade Aluminum Square Tubes are typically constructed from marine-grade alloys such as 5083, 5052, 6061, and 6082—well-known for their ability to withstand the aggressive effects of saltwater and marine atmospheres.

View Details
Marine aluminum round tubes

Marine Grade Aluminum Round Tubes are manufactured from premium marine alloys such as 5083, 5052, 6061, and 6082, all selected for their proven resistance to seawater corrosion and marine atmosphere degradation.

View Details
6061-T6 90-Degree Marine Aluminum Pipe Elbow

Manufactured from premium 6061-T6 marine-grade aluminum alloy, this elbow fitting is engineered to provide reliable and efficient pipe direction changes within shipbuilding, offshore platforms, and marine infrastructure systems.

View Details
Marine aluminum rectangular tubes

Marine Grade Aluminum Rectangular Tubes are made from high-performance alloys such as 5083, 5052, 6061, and 6082. These alloys are renowned for their ability to resist corrosive seawater and marine atmospheres while providing excellent mechanical strength and toughness.

View Details

Related Blog