Alloy 400 Flange (UNS N04400)
Alloy 400 Flange (UNS N04400) (product code PT-XHA-CRA-00055) is listed under Industrial Products & MRO > Special Alloys > Nickel & Corrosion-Resistant Alloys and supplied in Singapore by PANDA COLLECTIONS (PANDATEC PTE. LTD.), a B2B procurement partner for businesses. The nickel-copper alloy is one of few materials that resist hydrofluoric acid and fluorine, and it performs well in seawater, brines, hot alkalis and non-oxidising acids with very low susceptibility to stress-corrosion cracking. Prices are quoted on request.
| Product code | PT-XHA-CRA-00055 |
|---|---|
| Category | Industrial Products & MRO > Special Alloys > Nickel & Corrosion-Resistant Alloys |
| Grade / designation | UNS N04400 / W.Nr. 2.4360 (equivalent to MONEL® 400) |
| Product form | Flanges & Forgings |
| Applicable standards | ASTM B564 (forgings), ASTM B164 (bar) (confirmed per order) |
| Available forms | Weld-neck, slip-on, blind and custom flanges; plate, strip, wire, forged and hot-rolled bar |
| Certificates | EN 10204 3.1 MTC on request |
| Minimum order | On request |
| Country of origin | China |
| Pricing | On request – customised quotation by PANDA COLLECTIONS |
| Supplied in | Singapore |
Product description
The nickel-copper alloy is one of few materials that resist hydrofluoric acid and fluorine, and it performs well in seawater, brines, hot alkalis and non-oxidising acids with very low susceptibility to stress-corrosion cracking. PANDA COLLECTIONS sources Alloy 400 for buyers in Singapore and internationally for project and bulk orders. Mill test certificates to EN 10204 3.1, full heat traceability, melting route (e.g. ESR/VAR), heat-treatment condition and NDT/testing requirements are confirmed per enquiry. Prices are not listed online; every order is quoted individually based on grade, dimensions, quantity, testing and certification requirements.
Technical data
| Chemical composition (%) | Ni ≥63, Cu 28–34, Fe ≤2.5, Mn ≤2.0, C ≤0.3, Si ≤0.5, S ≤0.024 |
|---|---|
| Mechanical properties | Rm ≥490 MPa, Rp0.2 ≥170 MPa, A5 ≥35 %, HV ≤145 (annealed) |
| Physical properties | Density 8.83 g/cm³; melting range 1300–1390 °C |
Typical applications
- Seawater piping systems
- Pump shafts and valves
- Hydrofluoric-acid units
- Crude distillation
- Boiler feedwater lines
Industries: Marine & Offshore, Chemical Processing, Oil & Gas, Power Generation
Updated October 27, 2026
Frequently asked questions
What is Alloy 400 used for?
Seawater piping systems, pump shafts and valves, hydrofluoric-acid units, crude distillation, boiler feedwater lines.
Which standards apply to Alloy 400?
ASTM B564 (forgings), ASTM B164 (bar). Compliance, testing and certificates are confirmed for each order.
What forms and sizes of Alloy 400 are available?
Weld-neck, slip-on, blind and custom flanges; plate, strip, wire, forged and hot-rolled bar. Sizes are cut or produced to order.
How do I get a price for Alloy 400 Flange?
Prices are not published. Request a customised quotation from PANDA COLLECTIONS with the product code PT-XHA-CRA-00055, size, quantity, testing and certificate requirements, and delivery address.
Can mill test certificates be provided?
Mill test certificates to EN 10204 3.1 with heat traceability can be requested. Melting route (e.g. ESR/VAR), heat-treatment condition and NDT requirements are confirmed per enquiry.
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