ASTM B165
ASTM B165 Nickel Alloy Seamless Pipe Supplier
ASTM B165 Monel 400 (UNS N04400 / WNR 2.4360) is a high-strength, nickel-copper alloy known for its excellent corrosion resistance in a wide range of media, particularly seawater, hydrofluoric acid, alkalis, and neutral salts. Monel 400 Seamless Pipes & Tubes are widely used in marine engineering, chemical processing, oil & gas refineries, and heat exchangers. Its outstanding toughness, combined with good weldability, makes it a preferred choice for demanding industrial environments.
Key Features
Excellent corrosion resistance in marine & chemical environments
High strength and toughness over a wide temperature range
Good resistance to hydrofluoric acid and alkalis
Non-magnetic in annealed condition
Good weldability and formability
Suitable for high-temperature and high-pressure operations
Technical Specification
| Specification | Details |
|---|---|
| Standard | ASTM B165 |
| Grade | Monel 400 |
| UNS | N04400 |
| WERKSTOFF NR. | 2.4360 |
| Product Form | Seamless Pipes & Tubes |
| Manufacturing Process | Cold Drawn / Hot Finished |
| Size Range | 6 mm to 219 mm OD |
| Wall Thickness | 0.5 mm to 20 mm |
| Length | Single Random, Double Random, Cut Length |
| Pipe Ends | Plain End, Beveled End, Threaded |
| Finish | Annealed / Pickled |
Equivalent Grades
| Standard | Grade |
|---|---|
| UNS | N04400 |
| WNR | 2.4360 |
| BS | NA 13 |
| AFNOR | NU-30M |
| ASTM | Monel 400 |
| EN | NiCu30Fe |
ASTM B165 Chemical Composition
| Element | Content (%) |
|---|---|
| Nickel (Ni) | 63.0 min |
| Copper (Cu) | 28.0 – 34.0 |
| Iron (Fe) | 2.5 max |
| Manganese (Mn) | 2.0 max |
| Carbon (C) | 0.30 max |
| Silicon (Si) | 0.50 max |
| Sulfur (S) | 0.024 max |
ASTM B165 Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | 517 MPa min |
| Yield Strength (0.2% offset) | 172 MPa min |
| Elongation | 40% min |
| Hardness | 65 HRB max |
ASTM B165 Physical Properties
| Property | Value |
|---|---|
| Density | 8.80 g/cm³ |
| Melting Point | 1300 – 1350°C |
| Electrical Resistivity | 0.197 µΩ·m |
| Thermal Conductivity | 21.8 W/m·K |
| Modulus of Elasticity | 179 GPa |
Common Grades
- Monel 400 UNS N04400 / WNR 2.4360)
Types Offered
Monel 400 Seamless Pipes
Monel 400 Seamless Tubes
Monel 400 Heat Exchanger Tubes
Monel 400 High-Pressure Tubes
Monel 400 Instrumentation Tubes
Monel 400 Boiler & Condenser Tubes
Applications
Marine & Offshore Engineering
Chemical & Petrochemical Plants
Heat Exchangers & Condensers
Oil & Gas Processing
Power Generation
Pulp & Paper Industry
Hydrofluoric Acid Processing Units