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Seawater Resistant ASTM B111 C44300 U-Bend Tubes Heat Exchanger Supplier

Seawater Resistant ASTM B111 C44300 U-Bend Tubes Heat Exchanger Supplier

  • Seawater Resistant ASTM B111 C44300 U-Bend Tubes Heat Exchanger Supplier
  • Seawater Resistant ASTM B111 C44300 U-Bend Tubes Heat Exchanger Supplier
  • Seawater Resistant ASTM B111 C44300 U-Bend Tubes Heat Exchanger Supplier
  • Seawater Resistant ASTM B111 C44300 U-Bend Tubes Heat Exchanger Supplier
Seawater Resistant ASTM B111 C44300 U-Bend Tubes Heat Exchanger Supplier
Product Details:
Place of Origin: CHINA
Brand Name: YUHONG
Certification: ABS, GL, DNV, NK, PED, AD2000, ISO 9001
Model Number: ASTM B111 C44300
Payment & Shipping Terms:
Minimum Order Quantity: 300KG
Price: Negotiable
Packaging Details: 1000 tons per month
Delivery Time: Depends on quantity
Payment Terms: L/C,T/T
Supply Ability: Ply-wooden Case /Iron Case/ Bundle with plastic Cap/Woven Case
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Detailed Product Description
Material Grade: UNS C44300 Standard Compliance: ASTM B111 / ASME SB111
Tube Form: U-Bend (Cold Formed) Primary Alloy: Arsenical Admiralty Brass
Biofouling Resistance、: ASTM D6990 Certified Seawater Approval: MIL-T-16420 Compliant
Highlight:

Seawater resistant ASTM B111 tubes

,

C44300 U-bend heat exchanger tubes

,

Stainless steel seamless U-bend pipes


ASTM B111 C44300 U-Bend Tubes: High-Performance Admiralty Brass for Critical Heat Transfer



Product Overview of C44300 U-Bend Tubes


C44300 U-Bend Tubes are engineered from arsenical admiralty brass (UNS C44300), offering exceptional seawater corrosion resistance and biofouling mitigation. These cold-formed U-bend tubes meet ASTM B111 specifications for seamless condenser and heat exchanger systems, providing reliable thermal conductivity (≥80 W/m·K) in high-salinity, high-temperature environments up to 150°C. Ideal for power plants, desalination units, and marine applications.



Chemical Composition of C44300 U-Bend Tubes


ElementCuZnSnAsPb (max)Fe (max)Impurities (max)
% Range70.0–73.0Rem.0.9–1.20.02–0.060.070.060.15



Global Equivalent Grades


StandardEquivalent GradeKey Similarities
ENCW706RMatching Cu/Zn/Sn ratios, seawater approval
JISC4430BIdentical As content, condenser applications
DINCuZn28Sn1AsCorrosion performance parity
GBHSn70-1AComparable mechanical properties




Mechanical Properties of C44300 U-Bend Tubes


PropertyValueTest Method
Tensile Strength≥325 MPa (47 ksi)ASTM E8/E8M
Yield Strength (0.5% ext.)≥105 MPa (15 ksi)ASTM E8/E8M
Elongation (50mm)≥40%ASTM E8/E8M
Hardness (Rockwell B)45–65 HRBASTM E18
U-Bend Specific:

Bend Radius Tolerance±1.5 × ODASTM B111 Fig. 3
Ovality Post-Bending≤8% of ODASTM B111



Precision Tolerances for U-Bend Tubes


ParameterTolerance (±)Notes
Outer Diameter (OD)0.10 mm (≤25mm OD)Measured at straight sections

0.15% (＞25mm OD)
Wall Thickness+20% / -10%Min. wall at bend apex maintained
U-Bend Leg Length±3.0 mmLaser-verified pre-assembly
Bend Angle±1.5°Per tube bundle fitment specs
Straightness1.5 mm/mEnsures no flow obstruction



Marine & Industrial Applications


Primary Use Cases:


  •  Power Generation: Condenser tubes in nuclear/coal-fired plants (resists ammonia attack)


  •  Desalination: Multi-stage flash (MSF) evaporator U-bends


  •  Marine Systems: Shipboard heat exchangers, oil coolers


  •  Chemical Processing: Sulfuric acid coolers, refinery overhead condensers

Tag:

seamless stainless steel tube,

seamless boiler tubes,

stainless steel seamless pipes

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