Inconel 625 is a super alloy with nickel as the matrix (content ≥58%). It remains stable whether buried deep in the hot oil well, immersed in a highly corrosive chemical reactor, or exposed to the hot jet fuel of an aircraft engine. We supply all different types and scales of Inconel 625 pipe and tube. Please feel free to contact us for further product information and pricing.
Technical Specifications & Manufacturing Standards
Procurement teams and engineering firms rely on exact material specifications to guarantee safety in volatile environments. Inconel 625 seamless piping is classified under international standards as follows:
UNS Designation: UNS N06625
Werkstoff Number: 2.4856
Governing Specification: ASTM B444 / ASME SB444
Inconel 625 Chemical Composition
| Element | Nickel (Ni) | Chromium (Cr) | Molybdenum (Mo) | Niobium + Tantalum (Nb+Ta) | Iron (Fe) | Manganese (Mn) | Silicon (Si) | Carbon (C) | Cobalt (Co) |
| Min (%) | 58.0 | 20.0 | 8.00 | 3.15 | - | - | - | - | - |
| Max (%) | Balance | 23.0 | 10.00 | 4.15 | 5.00 | 0.50 | 0.50 | 0.10 | 1.00 |
Inconel 625 pipe application
Inconel n06625 pipe in Marine engineering and oil and gas production
Seawater system: Seawater cooling pipes, fire water pipes, ballast water pipes, resist seawater corrosion, biofouling and cavitation corrosion.
Underwater production system: Chemical injection pipelines, control umbilical cables, jumper pipes, withstand high pressure, low temperature and corrosion of output fluids containing hydrogen sulfide/carbon dioxide.
Equipment internal components: Heat exchanger tubes (when the tube side/shell side is highly corrosive), internal spray pipes of washing towers.
uns n06625 tube in Chemical processing and petrochemical industry
Strongly corrosive medium transportation: sulfuric acid, hydrochloric acid, phosphoric acid, mixed acid, chlorine, chlorinated solvents, fluorides, strong alkalis and other process pipelines.
Reactor internal components: Coils, heat exchanger tubes (corrosive medium treatment side), agitator sleeves, distributor tubes.
Pollution control: Spray pipes and demister components in flue gas desulfurization systems (FGD).
incon 625 steel pipe in Aerospace and power
Engine systems: Fuel hydraulic pipelines, air bleed pipes, environmental control system ducts, nacelle deicing pipelines, subject to high temperature, vibration and specific fluid corrosion.
Rocket engines: Propellant and coolant delivery pipelines.
625 alloy pipe in Energy and environmental protection
Nuclear power: Nuclear island auxiliary system pipelines (such as boric acid solution), spent fuel reprocessing equipment pipelines.
Thermal power/waste power generation: High-temperature flue gas waste heat recovery system pipelines (such as air preheaters), corrosive flue gas treatment system pipelines generated by biomass/waste incineration.
Hydrogen energy: electrolyzer system, hydrogen transmission pipeline (pay attention to hydrogen embrittlement sensitivity assessment).
alloy 625 pipe in Other industries
Pharmaceuticals and food: high-cleanliness process pipelines, thanks to their corrosion resistance and easy cleaning.
Pulp and paper: pipelines and equipment in the bleaching section (chlorine-containing environment).
Desalination: heat transfer tubes and brine pipelines in thermal desalination (MED/MSF) devices (resistant to seawater and high temperature).
