Inconel 625 is a nickel-based alloy also known as UNS N06625. It is one of the Inconel series of alloys, consisting of major elements such as nickel (Ni) and chromium (Cr), with small amounts of iron (Fe), molybdenum (Mo), niobium (Nb) and titanium (Ti)
Avliable Products: Wire, Pipe, Strip, Sheet, Plate, Flange,Bar
Inconel 625 alloy (UNS N06625) is a nickel-chrome-molybdenum alloy with excellent strength from room temperature to approximately 1500°F (816°C). At higher temperatures, its strength is usually lower than that of other solid solution strengthened alloys. Alloy 625 has good oxidation resistance at temperatures up to 1800°F (982 ° C) and has good resistance to water corrosion, but is not as effective as Hasloy ®. Inconel 625 alloy has excellent forming and welding properties. It can be forged or otherwise hot-worked, provided the temperature is kept within a range of approximately 1,800 to 2,150 °F(982 to 1,177 °C). Ideally, in order to control grain size, the finishing hot work operation should be performed at the lower end of the temperature range.
Inconel 625 Characteristic:
- High creep-rupture strength
- Oxidation resistant to 1800°F
- Good fatigue resistance
- Excellent weldability
- Outstanding resistance to chloride pitting and crevice corrosion
- Immune to chloride ion stress corrosion cracking
- Resistant to seawater under both flowing and stagnant conditions and under fouling
Inconel 625 Chemical Composition
Inconel 625 Physical Properties
Inconel 625 Mechanical Properties (Minimum value at 20℃)
|Tensile Strength (σb/MPa)||Yield Strength (σp0.2/MPa)||Elongation (σ5/%)|
Inconel 625 Process performance and requirements:
Inconel 625 has a number of process properties and requirements to ensure optimal performance and quality during processing and manufacturing.
Hot working properties:
Inconel 625 has good hot working properties at high temperatures, such as hot forging, hot rolling and hot extrusion. Appropriate heating temperature and hot working conditions can make the alloy easy to deform and form.
Cold working properties:
Inconel 625 has some plasticity at room temperature, but it is a heat-resistant alloy, so cold working ability is limited. Large deformation and cold working may lead to increased brittleness of the alloy and decrease its properties.
The Inconel 625 has excellent weldability and can be connected by a variety of welding methods, such as TIG (tungsten inert gas welding), MIG (metal inert gas welding) and arc welding. However, it should be noted that the welding temperature and welding heat input should be well controlled in the welding process to avoid the embrittlement of the alloy and the generation of pores.
Work hardening property:
Inconel 625 has certain work hardening property, that is, grain refinement and strengthening will occur in the process of processing, improving the hardness and strength of the alloy. However, excessive work hardening may lead to increased brittleness of the alloy, so proper annealing treatment is required during machining to restore the toughness and plasticity of the alloy.
When machining and manufacturing Inconel 625 parts, surface treatment such as pickling, shot peening or mechanical polishing is usually required to remove surface oxides, welding slag or other contaminants and improve the surface quality and corrosion resistance of the material.
Overall, for the processing and manufacturing of Inconel 625, proper processing temperature, processing force and processing speed need to be controlled to ensure that the desired shape and size are obtained while maintaining the properties of the alloy. In addition, pay attention to the heat treatment and welding process of the alloy to ensure the integrity and properties of the alloy.
- Bars & Rods
- sheet & plate
- strip & coil
- welding wire &Spring wire
- Seamless tube & Welded pipe
» Round Bar & Square Bar & Hexagon Bar
Diameter : φ8～φ300mm
Hot forging,Hot Rolling,Cold Rolling
Bright Surface, Polished Surface, Black Surface
» Tube & Pipe:Seamless Pipe & Welding Pipe
Cold Drawing Seamless Pipe φ10～φ220mm
Hot Extrusion pipe:φ50～φ250mm
Others :U Blend Tube and Elbow
» Hot Rolled & Cold Rolled Plate Sheet
Length Within 6500mm
» Strip & Tape Ribbon
Cold rolling BA Strip, Hard & Soft Condition
» Straight Length Wire & Spool Wire
Cut length Wire:φ1.0～φ8.0mm
Alloy 625 Applications
- Parts of organic chemical processes containing chloride, especially where acid chloride catalysts are used
- Digesters and bleach tanks for the pulp and paper industry
- Absorption tower, reheater, flue gas inlet baffle, fan (wet), agitator, baffle and flue in flue gas desulfurization system
- Used to manufacture equipment and components for use in acidic gas environments
- Acetic acid and acetic anhydride reaction generator
- Sulfuric acid condenser