YUHONG HOLDING GROUP CO., LTD
| Payment Terms | L/C,T/T |
| Delivery Time | 7 DAYS |
| Packaging Details | Ply-wooden Case /Iron Case/ Bundle with plastic Cap |
| Product Name | U Bend Tube |
| Standard | ASTM B163, ASME SB163 |
| Material | UNS N04400, Monel 400 |
| OD | 1/4" , 3/8", 1/2", 5/8", 3/4", 1", 1.1/4", etc. |
| Thickness | BWG10-25 |
| Leg Length | Can Custom |
| Radius | Can Custom |
| High Light | ASTM SB163 UNS N04400 Nickel Alloy Tube, Monel 400 Seamless Tubing, U Bend Heat Exchanger Tube |
| Brand Name | YUHONG |
| Model Number | ASME SB163 Monel 400 Nickel Alloy U Bend Tube |
| Certification | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008 |
| Place of Origin | CHINA |
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Product Specification
| Payment Terms | L/C,T/T | Delivery Time | 7 DAYS |
| Packaging Details | Ply-wooden Case /Iron Case/ Bundle with plastic Cap | Product Name | U Bend Tube |
| Standard | ASTM B163, ASME SB163 | Material | UNS N04400, Monel 400 |
| OD | 1/4" , 3/8", 1/2", 5/8", 3/4", 1", 1.1/4", etc. | Thickness | BWG10-25 |
| Leg Length | Can Custom | Radius | Can Custom |
| High Light | ASTM SB163 UNS N04400 Nickel Alloy Tube, Monel 400 Seamless Tubing, U Bend Heat Exchanger Tube | Brand Name | YUHONG |
| Model Number | ASME SB163 Monel 400 Nickel Alloy U Bend Tube | Certification | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008 |
| Place of Origin | CHINA | ||
| High Light | Monel 400 U bend heat exchanger tube ，ASME SB163 nickel alloy seamless tube ，UNS N04400 heat exchanger tubing | ||
ASME SB163 UNS N04400 / Monel 400 Nickel Alloy Seamless U Bend Heat Exchanger Tube
The U-bend eliminates the need for a return header or flange connection on one end of the tube bundle, creating a compact, two-pass design within a heat exchanger. This reduces potential leak points and cost. ASME SB163 MONEL 400 U-Bend Tubes are a premium, high-performance solution for the critical heat transfer sections of equipment operating in demanding corrosive environments, particularly where seawater, hydrofluoric acid, or reducing chemical media are present.
Advantages of Using MONEL 400 U-Bend Tubes
Corrosion Resistance: Long service life in corrosive cooling media, reducing downtime and replacement costs.
Fouling Resistance: Smoother surface and biostatic properties reduce marine fouling.
Mechanical Integrity: Good strength and ductility withstand operational stresses and vibration.
Design Simplicity: The integral U-bend provides a leak-proof return path.
Chemical Composition of ASME SB163 UNS N04400/Monel 400 Nickel Alloy U Bend Heat Exchanger Tube %
| Grade | C | Mn | Si | S | Cu | Fe | Ni |
| Monel 400 | 0.30 max | 2.00 max | 0.50 max | 0.24max | 28.0-34.0 | 2.50 max | 63.00 min |
Mechanical properties of ASME SB163 UNS N04400/Monel 400 Nickel Alloy U Bend Heat Exchanger Tube
| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| Monel 400 | 8.8 g/cm3 | 1350 °C (2460 °F) | Psi – 80,000 , MPa – 550 | Psi – 35,000 , MPa – 240 | 40 % |
Physical Properties of ASME SB163 UNS N04400/Monel 400 Nickel Alloy U Bend Heat Exchanger Tube
|
Properties |
Metric |
Imperial |
|---|---|---|
| Density | 8.8 gm/cm3 | 0.318 lb/in3 |
Manufacturing Process:
Tube Production: Seamless tubes are produced as per SB163 (typically via extrusion or pierce and draw methods).
Annealing: Tubes are annealed to achieve the specified soft, ductile temper required for bending.
Bending: Tubes are precisely bent (cold-formed) around a die to form the "U." The most critical parameter is the U-Bend Radius (measured from the centerline), often specified as a minimum radius (e.g., 1.5 x Tube Outer Diameter).
Critical U-Bend Parameters:
Leg Length (Straight Side Length): Distance from the tangent line of the bend to the end of the tube.
Center-to-Center Distance: Distance between the centers of the two legs.
Bend Radius: The radius of the bend itself.
Tube-to-Tube Clearance: In the bundle, this dictates how tightly the U-bends can be packed.
Wall Thinning: During bending, the outer wall of the bend thins. SB163/industry standards allow for controlled thinning (typically up to 17-20% for a given radius).
Ovality: The degree to which the tube cross-section deviates from a perfect circle at the bend.
Application
Shell and Tube Heat Exchangers & Condensers: Especially in the critical U-bend section of U-tube bundle designs.
Industries:
Marine & Offshore: Seawater coolers, condensers, oil coolers.
Chemical & Petrochemical Processing: For handling chlorinated solvents, crude oil distillation, alkylation units.
Power Generation: Feedwater heaters, condenser tubes where brackish or polluted cooling water is used.
HF Alkylation Units: A flagship application due to MONEL 400's exceptional resistance to Hydrofluoric Acid.
PT detects surface-breaking defects in non-porous materials. A liquid penetrant is drawn into flaws by capillary action, then drawn out by a developer to form visible indications.
Why PT for U-bends?
ending induces stress and may reveal material imperfections or cause cracking. PT is ideal for complex curved surfaces where other NDT methods have limitations.
Company Details
Business Type:
Manufacturer,Importer,Exporter,Trading Company,Seller,Other
Year Established:
1990
Total Annual:
50M-70M
Employee Number:
50~800
Ecer Certification：
Verified Supplier
Yuhong Holding Group has more than 35 years experience for pipeline products, till now we have 3 big joint venture factories, the total production area more than 130000 square meters, and more than 600 workers with 106 production lines give our clients excellent supporting always. &n... Yuhong Holding Group has more than 35 years experience for pipeline products, till now we have 3 big joint venture factories, the total production area more than 130000 square meters, and more than 600 workers with 106 production lines give our clients excellent supporting always. &n...
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