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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
Seawater Resistant ASTM B111 C44300 U-Bend Tubes Heat Exchanger Supplier
Specifications
Brand Name :
YUHONG
Model Number :
ASTM B111 C44300
Certification :
ABS, GL, DNV, NK, PED, AD2000, ISO 9001
Place of Origin :
CHINA
MOQ :
300KG
Price :
Negotiable
Payment Terms :
L/C,T/T
Supply Ability :
Ply-wooden Case /Iron Case/ Bundle with plastic Cap/Woven Case
Delivery Time :
Depends on quantity
Packaging Details :
1000 tons per month
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
Description


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

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Product Detail
Brand Name :
YUHONG
Model Number :
ASTM B111 C44300
Certification :
ABS, GL, DNV, NK, PED, AD2000, ISO 9001
Place of Origin :
CHINA
MOQ :
300KG
Price :
Negotiable
Contact 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

Yuhong Group Co.,Ltd

Verified Supplier
13 Years
zhejiang, ningbo
Since 2007
Business Type :
Manufacturer, Distributor/Wholesaler, Importer, Exporter, Trading Company, Seller, Other
Main Products :
Stainless Steel Seamless Pipe, Stainless Steel Seamless Tube, Duplex Stainless Steel Pipe
Total Annual :
50M-70M
Employee Number :
50~850
Certification Level :
Verified Supplier
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