Yuhong Group Co.,Ltd
| 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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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 tubes ，C44300 U-bend heat exchanger tubes ，Stainless steel seamless U-bend pipes | ||
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.
| Element | Cu | Zn | Sn | As | Pb (max) | Fe (max) | Impurities (max) |
|---|---|---|---|---|---|---|---|
| % Range | 70.0–73.0 | Rem. | 0.9–1.2 | 0.02–0.06 | 0.07 | 0.06 | 0.15 |
| Standard | Equivalent Grade | Key Similarities |
|---|---|---|
| EN | CW706R | Matching Cu/Zn/Sn ratios, seawater approval |
| JIS | C4430B | Identical As content, condenser applications |
| DIN | CuZn28Sn1As | Corrosion performance parity |
| GB | HSn70-1A | Comparable mechanical properties |
| Property | Value | Test 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 HRB | ASTM E18 |
| U-Bend Specific: | ||
| Bend Radius Tolerance | ±1.5 × OD | ASTM B111 Fig. 3 |
| Ovality Post-Bending | ≤8% of OD | ASTM B111 |
| Parameter | Tolerance (±) | 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 mm | Laser-verified pre-assembly |
| Bend Angle | ±1.5° | Per tube bundle fitment specs |
| Straightness | 1.5 mm/m | Ensures no flow obstruction |
Primary Use Cases:
Company Details
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 Group is one of the large scale group company in China, more than 35 years experience in the international market, providing high-quality services to over 3000 customers, end user which like Aramco, Petrobras, Pemex, Petronas, Ecopetro, Petroecuador, …. till now Yuhong Grou... Yuhong Group is one of the large scale group company in China, more than 35 years experience in the international market, providing high-quality services to over 3000 customers, end user which like Aramco, Petrobras, Pemex, Petronas, Ecopetro, Petroecuador, …. till now Yuhong Grou...
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