N06625 is high Mo-Nb solid-solution strengthened austenitic nickel alloy bright bar, single-phase FCC non-magnetic matrix, non-age-hardenable. High molybdenum & niobium provide dispersion strengthening to boost tensile strength, pitting resistance and high-temperature creep performance, PREN>51, one of the most corrosion-resistant commercial nickel-base grades.
Chemical element content (%)
C | Si | Mn | P | S | |
Min | - | - | - | - | - |
Max | 0.1 | 0.5 | 0.5 | 0.015 | 0.015 |
Please note that the specific content may fluctuate under different production batches and technical requirements.
Specification:1.00~300.00mm
Wide-range solid-solution high strength
Mo-Nb dual enhanced superior local corrosion resistance
Dual resistance to chloride & H₂S SCC
Ultra-low carbon anti-welding sensitization
Broad-spectrum acid & alkali resistance
Application:It is mainly used to manufacture high-pressure seawater valve stems for deep offshore platforms, high-temperature seawater desalination heat exchange mandrels, precision valve spools for pulp bleaching equipment, high-chloride FGD pressure flanges for power plants, H₂S & concentrated brine pump shafts for oil & gas extraction, heavy-duty fasteners for hydrofluoric acid fluorochemical reactors, high-temperature seawater pipe flanges for ocean-going vessels, non-magnetic pressure pins for nuclear high-purity water equipment, heavy-corrosion extraction hardware for hydrometallurgy, internal high-temperature sealing bars for aero engines, etc.
Widely applied in deep-sea offshore oil & gas platforms, large-scale seawater desalination projects, complete pulp bleaching production lines, power plant high-temperature flue gas desulfurization facilities, fluorochemical anti-corrosion plants, ocean-going marine seawater circulating systems, PWR nuclear high-purity water equipment, aerospace gas turbine high-temperature sealing components and high-pressure acidic phosphorus chemical reaction equipment industries.
Core Advantages Over Competitors
1. High quality stability: Full closed-loop production with dual online spectral & metallographic inspection strictly control C, Cr, Mo, Nb with fine dispersed Mo-Nb precipitates. Uniform segregation-free austenitic grain delivers consistent PREN, tensile strength, SCC resistance and weldability for stable mass supply of deep-sea, fluorochemical and nuclear high-pressure severe corrosion components.
2. Excellent surface quality: Dedicated high-precision cold drawing & centerless grinding lines produce mirror-smooth bars free of scale, scratches and pits. Flat clean surface after turning eliminates secondary polishing for precision appearance parts.
3. Ultra-high dimensional accuracy: Precision rolling mills and automatic online dimension detectors narrow tolerance range with tiny single-bar deviation and strong batch uniformity, unifying component sizes during automatic mass production to raise finished yield.
4. Rich product variety: According to market demand and customer's special requirements, customized products are provided to meet the use requirements under various complex working conditions, providing customers with more choices.
5. Perfect after-sales service: The perfect after-sales service system can respond to customer needs and feedback in a timely manner. For problems encountered by customers during use, technical support and solutions are provided to customers quickly.