Alloy 400 | Non-Magnetic Corrosion Fighter
Guangxin PipeTech' s seamless nickel alloy pipe features 70% Ni-Cu composition, resisting hydrofluoric acid, alkalis, and marine atmospheres. It maintains tensile strength (550 MPa) from -200°C to 400°C, making it essential for desalination plant evaporators and offshore systems.
| Technical Specifications | |
| Temp Range | -252°C to 980°C |
| Creep Strength | 180 MPa @815°C |
| Oxidation Rate | <0.1mg/cm²/100h |
| Surface Defects | ≤0.05mm depth |
| Certification | NASA STD 6012 |
UNS N04400 (63Ni-34Cu) maintains single-phase structure. Iron controlled <2.5% prevents galvanic corrosion. Manganese (<2.0%) enhances seawater resistance.
Seawater Corrosion: <0.025 mm/year at 2.4 m/s flow
Crevice Corrosion: No attack after 30 days in chlorinated seawater
Biofouling Resistance: 90% reduction vs. titanium
ASTM G52 proof testing in synthetic seawater. Eddy current inspection per ASTM E309. Hydrogen embrittlement validation per ASTM F1624.
Offshore platform firewater systems
Desalination plant brine recirculation loops
Submarine hydraulic tubing
Marine heat exchanger U-bends
MIL-T-24107 (Ships) • DEF STAN 02-786 • Lloyds Register Type Approval
