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 | Heat Exchanger Tube |
| Standard | ASTM B165, ASME SB165 |
| Material | UNS N04400, Monel 400 |
| OD | 1/4" , 3/8", 1/2", 5/8", 3/4", 1", 1.1/4", etc. |
| Thickness | BWG10-25 |
| Length | Single Random, Double Random & Cut Length |
| End | Plain End, Beveled End |
| High Light | ASTM SB165 UNS N04400 Nickel Alloy Tube, Monel 400 Seamless Pipe, Nickel Alloy Steel Heat Exchanger Tube |
| Brand Name | YUHONG |
| Model Number | ASME SB165 Monel 400 Nickel Alloy Seamless Pipe |
| 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 | Heat Exchanger Tube |
| Standard | ASTM B165, ASME SB165 | Material | UNS N04400, Monel 400 |
| OD | 1/4" , 3/8", 1/2", 5/8", 3/4", 1", 1.1/4", etc. | Thickness | BWG10-25 |
| Length | Single Random, Double Random & Cut Length | End | Plain End, Beveled End |
| High Light | ASTM SB165 UNS N04400 Nickel Alloy Tube, Monel 400 Seamless Pipe, Nickel Alloy Steel Heat Exchanger Tube | Brand Name | YUHONG |
| Model Number | ASME SB165 Monel 400 Nickel Alloy Seamless Pipe | Certification | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008 |
| Place of Origin | CHINA | ||
| High Light | Monel 400 nickel copper alloy pipe ，ASME SB165 seamless heat exchanger tube ，UNS N04400 alloy steel tube | ||
ASME SB165 / ASTM B165 UNS N04400 / Monel 400 Seamless Pipe Nickel Alloy Steel Heat Exchanger Tube
ASME SB165 UNS N04400 (Monel 400) seamless tube is a high-performance material for heat exchangers requiring exceptional resistance to seawater, hydrofluoric acid, and non‑oxidizing chemicals. Its combination of strength, ductility, thermal conductivity, and resistance to chloride stress corrosion cracking makes it a preferred choice in marine, chemical, and oil & gas industries where 316L or copper alloys would fail prematurely.
Key characteristics of B165 UNS N04400/Monel 400 seamless pipe and tube
High strength and toughness over a wide temperature range (cryogenic to ~1000°F / 538°C)
Excellent resistance to many corrosive media – especially seawater, hydrofluoric acid, and reducing acids
Solid-solution alloy (no age hardening) – good weldability and formability
Chemical Composition of ASME SB165 UNS N04400/Monel 400 Seamless Pipe Nickel Alloy Steel 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 and Physical properties of ASME SB165 UNS N04400/Monel 400 Seamless Pipe Nickel Alloy Steel Heat Exchanger Tube
| Density | Melting Point |
Tensile Strength, min, psi (MPa) |
Yield Strength, min. (0.2%offset) min psi (MPa) |
Elongation in 2in. or 50mm, min % |
| 8.8 g/cm3 |
1350 °C (2460 °F) |
Annealed: 480MPa Stress-relieved: 585MPa |
Annealed: 195MPa (size under 5in.) 170MPa (size over 5in.) Stress-relieved: 380MPa |
Annealed:35% Stress-relieved:15% |
How It Works – Monel 400 Tube in a Shell & Tube Heat Exchanger
Basic function: Transfers heat between two fluids without mixing them.
Tube side fluid (corrosive, e.g., seawater, chemical solution) flows inside the Monel tube.
Shell side fluid (e.g., cooling water, steam, hydrocarbon) flows outside the tube bundle.
Monel 400 provides a corrosion-resistant barrier, preventing tube wall thinning, pitting, or cracking over years of service.
Application
Heat exchangers & condensers – Seawater cooling, chemical plants, refineries
Marine engineering – Shipboard coolers, offshore produced water coolers
Desalination plants – Brine heaters, evaporator tubes
Chemical processing – HF service, sulfuric acid alkylation, chlorinated solvent handling
Oil & gas – Sour service (with NACE limitations – H₂S requires careful evaluation)
Cryogenic equipment – Retains ductility down to liquid hydrogen temperatures (-253°C / -423°F)
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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