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ASME SB165 UNS N04400 Nickel Copper Alloy Seamless Pipe and Tube Monel 400 Heat Exchanger Tube

ASME SB165 UNS N04400 Nickel Copper Alloy Seamless Pipe and Tube Monel 400 Heat Exchanger Tube

Nom De Marque: YUHONG
Numéro De Modèle: Tuyau sans couture en alliage de nickel ASME SB165 Monel 400
MOQ: 1000KGS
Détails De L'emballage: Caisse en bois contreplaqué/étui en fer/lot avec capuchon en plastique
Conditions De Paiement: LC, T/T
Les informations détaillées
Lieu d'origine:
Chine
Certification:
ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Nom du produit:
Tube d'échangeur de chaleur
Standard:
Pour l'utilisation dans les appareils électroménagers
Matériel:
N° UNS 04400, MONEL 400
DO:
1/4", 3/8", 1/2", 5/8", 3/4", 1", 1.1/4", etc.
Épaisseur:
BWG10-25
Longueur:
Simple aléatoire, double aléatoire et longueur coupée.
Fin:
Extrémité unie, extrémité biseautée
Mettre en évidence:
Tube en alliage de nickel ASTM SB165 UNS N04400, tuyau sans soudure Monel 400, tube d'échangeur
Description de produit

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
Balance: Nickel + Copper constitute the majority.

 

 

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)

 
 

ASME SB165 UNS N04400 Nickel Copper Alloy Seamless Pipe and Tube Monel 400 Heat Exchanger Tube 0