Yuhong Holding Group Co., LTD
Miejsce pochodzenia: | Chiny |
Nazwa handlowa: | YUHONG |
Orzecznictwo: | ABS, GL, DNV, NK, PED, AD2000, ISO 9001 |
Numer modelu: | ASTM B111 C44300 |
Minimalne zamówienie: | 300 kg |
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Cena: | negocjowalne |
Szczegóły pakowania: | 1000 ton miesięcznie |
Czas dostawy: | Zależy od ilości |
Zasady płatności: | L/C, T/T. |
Możliwość Supply: | Drewniana obudowa / żelazna obudowa / pakiet z plastikową nasadką / plecioną obudową |
Ocena materialna: | UNS C44300 | Zgodność ze standardami: | ASTM B111 / ASME SB111 |
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Forma rurki: | U-bend (utworzony przeziębienie) | Stop podstawowy: | Arseniczny admiralicja mosiądz |
Biofouling Resistance 、: | ASTM D6990 Certyfikowane | Zatwierdzenie wody morskiej: | MIL-T-16420 Zgodność |
Podkreślić: | 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:
Osoba kontaktowa: Freya
Tel: +8617276485535
Faks: 0086-574-88017980