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Yuhong Group Co.,Ltd

  • China,Ningbo ,Zhejiang
  • Verified Supplier

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

  1. China Seawater Resistant ASTM B111 C44300 U-Bend Tubes Heat Exchanger Supplier
  2. China Seawater Resistant ASTM B111 C44300 U-Bend Tubes Heat Exchanger Supplier
  3. China Seawater Resistant ASTM B111 C44300 U-Bend Tubes Heat Exchanger Supplier
  4. China Seawater Resistant ASTM B111 C44300 U-Bend Tubes Heat Exchanger Supplier

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

  1. MOQ: 300KG
  2. Price: Negotiable
  3. Get Latest Price
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
Brand Name YUHONG
Model Number ASTM B111 C44300
Certification ABS, GL, DNV, NK, PED, AD2000, ISO 9001
Place of Origin CHINA

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  1. Product Details
  2. Company Details

Product Specification

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
Brand Name YUHONG Model Number ASTM B111 C44300
Certification ABS, GL, DNV, NK, PED, AD2000, ISO 9001 Place of Origin CHINA
High Light Seawater resistant ASTM B111 tubesC44300 U-bend heat exchanger tubesStainless 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

Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory
  • Business Type:

    Manufacturer,Distributor/Wholesaler,Importer,Exporter,Trading Company,Seller,Other

  • Year Established:

    2007

  • Total Annual:

    50M-70M

  • Employee Number:

    50~850

  • Ecer Certification:

    Verified Supplier

  YUHONG HOLDING GROUP is one of the largest Procurement, Engineering & Contracting Group companies in China. Our group branch company and factory have been already approved by : ABS, LR, DNV, GL, BV, CCS, KR,  PED 97/23/EC, AD2000-WO, GOST9941-81, CCS, TS, CNNC, ISO9...   YUHONG HOLDING GROUP is one of the largest Procurement, Engineering & Contracting Group companies in China. Our group branch company and factory have been already approved by : ABS, LR, DNV, GL, BV, CCS, KR,  PED 97/23/EC, AD2000-WO, GOST9941-81, CCS, TS, CNNC, ISO9...

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  • Yuhong Group Co.,Ltd
  • 20TH FLOOR,NO.1 NEW WORLD BUILDING ,NO.1018 MINAN ROAD,YINZHOU DISTRICT, NINGBO CITY, ZHEJIANG PROVINCE, CHINA
  • https://www.steelseamlesspipe.com/

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