Inconel is a heat-resistant and corrosion-resistant nickel-chromium-iron alloy, a nickel-based alloy.

Commonly used grades include Inconel625, Inconel600, Inconel601, inconel718, inconelx750, etc.

The following is a brief introduction to these brands. For more details, please consult.

Incone l625

Overview of the characteristics and application areas of Incone l625:

This alloy is a solid solution strengthened nickel-based deformation high temperature alloy with molybdenum and niobium as the main strengthening elements. The alloy has excellent corrosion resistance and high oxidation properties, good tensile properties and fatigue properties from low temperature to 980°C, and is resistant to stress corrosion in salt spray atmosphere. Therefore, it can be widely used in manufacturing aerospace engine parts, aerospace structural components and chemical equipment.

Incone l625 similar brands:

NS336, GH3625, GH625 (China), NC22DNb (France), W.Nr.2.4856 (Germany), N06625

Inconel625 metallographic structure:

The structure of this alloy in the solid solution state is an austenite matrix and a small amount of TiN, NbC, and M6C phases. After long-term aging at 650~900℃, the precipitated phases For γ', δ, M23C6 and M6C.

Inconel625 process performance and requirements:

1. This alloy has good cold and hot forming properties, and the steel ingot forging heating temperature is 1120°C.

2. The average grain size of the alloy is closely related to the degree of deformation and final forging temperature of the forging.

3. The alloy has good welding performance. It can be argon arc welded with tungsten electrode or this alloy as additive under protective atmosphere. Brazing connection and resistance seam welding can also be used.

4. Surface treatment process: When removing the oxide scale on the alloy surface, it is first washed with alkali, and then pickled in nitric acid, hydrofluoric acid-aqueous solution.

5. When the processing amount is greater than 15% during cold processing of alloys, annealing treatment must be performed after hot processing.

Application fields of Inconel625:

Components of organic chemical processes containing chlorides, especially where acidic chloride catalysts are used;

For manufacturing Digesters and bleaching tanks in the pulp and paper industry;

Absorption towers, reheaters, flue gas inlet baffles, fans (humidity), agitators, deflectors and flue gas in flue gas desulfurization systems Dao, etc.;

Used to manufacture equipment and components used in acidic gas environments;

Acetic acid and acetic anhydride reaction generators;

Sulfuric acid condensers, etc.

Inconel625 main specifications:

Inconel625 seamless pipe, Inconel625 steel plate, Inconel625 round steel, Inconel625 forgings, Inconel625 flange, Inconel625 ring, Inconel625 welded pipe, Inconel625 steel strip, Inconel625 straight Strips, Inconel625 wire and supporting welding materials, Inconel625 processed parts

Incone l600 nickel-based alloy

Inconel600 characteristics and application fields overview:

This alloy is nickel - Chromium-iron-based solid solution strengthened alloy has good high-temperature corrosion and oxidation resistance, excellent hot and cold processing and welding properties, and has satisfactory thermal strength and high plasticity below 700°C. The alloy can be strengthened by cold working, and can also be connected by resistance welding, solution welding or brazing. It is suitable for making anti-oxidation parts that can withstand low loads below 1100°C.

Incone l600 similar brands:

GH600 (China), NC15FE (France), W.Nr.2.4816, NiCr15Fe (Germany), NA14 (UK), NS312, UNSN06600

Inconel600 metallographic structure:

The alloy was treated at 1120℃ for 2 hours, with only TiN nitride and Cr7C3 carbide. After long-term aging at 870℃ at 1500℃?, the structure It is still Cr7C3 and TiN, indicating that the structure of the alloy is stable.

Inconel600 process performance and requirements:

1. This alloy has good hot processing properties, and the steel ingot forging heating temperature is 1110℃~1140℃.

2. The average grain size of the alloy is closely related to the degree of deformation and final forging temperature of the forging.

3. The alloy has good welding performance and can be connected by various methods such as arc welding, argon arc welding, resistance welding and brazing. Large or complex welded structural parts should be connected at 870 after solution welding. Anneal at ℃ for 1 hour to eliminate welding stress.

4. The alloy must be machined after heat treatment. Due to the work hardening of the material, it is advisable to use a lower cutting speed and heavy feed than when processing low-alloy standard austenitic stainless steel before turning. Underneath the surface that has been cold hardened.

It is recommended to use AWS A5.14 welding wire ERNiCr-3 or AWS A5.11 welding rod ENiCrFe-3 for welding of Inconel600 alloy.

Inconel600 application:

1. Thermowells in corrosive atmospheres 2. Production of vinyl chloride monomer: resistant to chlorine, hydrogen chloride, oxidation and carbonization corrosion 3. Conversion of uranium oxidation to hexafluoride: resistant to hydrogen fluoride corrosion 4. Production and use fields of corrosive alkali metals, Especially the environment where sulfides are used 5. Preparation of titanium dioxide by chlorine method 6. Production of organic or inorganic chlorides and fluorides: resistance to chlorine and fluorine corrosion 7. Nuclear reactors 8. Retorts and components in heat treatment furnaces, especially in carbonization and nitriding atmosphere 9. Catalytic regenerators in petrochemical production are recommended to use Alloy 600 in applications above 700°C to obtain a longer service life.

Inconel600 main specifications:

Inconel600? seamless pipe, Inconel600? steel plate, Inconel600? round steel, Inconel600? forgings, Inconel600? flange, Inconel600? ring, Inconel600? welded pipe , Inconel600? steel strip, Inconel600? straight bar, Inconel600? wire and supporting welding materials, Inconel600? processed parts

Inconel601 nickel-based alloy

Inconel 601 introduction:

Inconel 601, a nickel-based alloy material. It has excellent oxidation resistance at high temperatures, good carbonization resistance, good oxidation resistance in sulfur-containing atmospheres, good mechanical properties at room temperature and high temperature, and good stress corrosion cracking resistance. Due to the controlled carbon content and grain size, 601 has higher creep rupture strength, so it is recommended to use 601 in areas above 500°C.

Inconel 601 corresponding grades:

UNS N06601, W.Nr.2.4851, NS3103/ NS313, 1Cr23Ni60Fe13Al, NCF601 (Japan)

Inconel 601 has the following characteristics :

1. Excellent oxidation resistance at high temperatures

2. Good carbonization resistance

3. Good antioxidant properties Sulfur atmosphere

4. It has good mechanical properties at room temperature and high temperature

5. It has good stress corrosion cracking resistance due to controlling the carbon content and grain size. 601 has high creep rupture strength, so it is recommended to use 601 in areas above 500°C.

Inconel 601 metallographic structure:

601 has a face-centered cubic lattice structure.

Inconel 601 Corrosion Resistance:

An important property of Inconel 601 alloy is its oxidation resistance at temperatures up to 1180°C. Even under very harsh conditions, such as during heating and cooling cycles, 601 can form a dense oxide film and achieve high peeling resistance. 601 has good carbonation resistance. Due to its high chromium and aluminum content, 601 has good oxidation resistance in high-temperature sulfur-containing atmospheres.

Inconel 601 application fields:

1. Trays, baskets and fixtures used in heat treatment factories.

2. Steel wire split annealing and radiant tubes, high speed gas burners, wire mesh belts in industrial furnaces.

3. Isolation tanks in ammonia reforming and catalytic support grids in nitric acid manufacturing.

4. Exhaust system components

5. Combustion chamber of solid waste incinerator

6. Pipe support and soot disposal components

7. Exhaust gas detoxification system components

8. Oxygen reheater

Inconel 601 main specifications

Inconel 601 seamless pipe, Inconel 601 steel plate, Inconel 601 Round steel, Inconel 601 forgings, Inconel 601 flanges, Inconel 601 rings, Inconel 601 welded pipes, Inconel 601 steel strips, Inconel 601 straight bars, Inconel 601 wire and supporting welding materials, Inconel 601 processed parts

Inconel718 is a precipitation hardening high-temperature alloy, a nickel-based alloy, resistant to high temperatures and corrosion.

Overview of the characteristics and application fields of Incone?l718:

This alloy has good comprehensive properties in the temperature range of -253~700℃, and its yield strength below 650℃ ranks first among deformation high-temperature alloys. The first place, and has good fatigue resistance, radiation resistance, oxidation resistance, corrosion resistance, as well as good processing performance and good welding performance. It can manufacture various parts with complex shapes and has been widely used in aerospace, nuclear energy, petroleum industry and extrusion molds in the above temperature range.

Incone?l718 similar brands:

N07718, GH4169?, GH169 (China), NC19FeNb (France), W.Nr.2.4668?, NiCr19Fe19Nb5 (Germany)

Inconel718? Metallographic structure:

The structure of this alloy in the standard heat treatment state is composed of γ matrix γ', γ', δ, and NbC phases

Inconel718 process performance and requirements :

1. Due to the high niobium content in Inconel718 alloy, the degree of niobium segregation in the alloy is directly related to the metallurgical process.

2. In order to avoid excessive segregation of elements in the steel ingot, the diameter of the steel ingot should not exceed 508mm.

3. The homogenized alloy has good hot processing properties, and the billet heating temperature of the steel ingot must not exceed 1120°C.

4. The average grain size of the alloy is closely related to the deformation degree and final forging temperature of the forging.

5. The alloy has satisfactory welding performance and can be welded by argon arc welding, electron beam welding, seam welding, spot welding and other methods.

6. Different solution treatment and aging treatment processes of alloys will produce different material properties. Due to the low diffusion rate of the γ" phase, Inconel718 alloy can obtain the best mechanical properties through long-term aging treatment. Inconel718 main specifications:

Inconel718 seamless pipe, Inconel718 steel plate, Inconel718 round steel , Inconel718 forgings, Inconel718 flanges, Inconel718 rings, Inconel718 welded pipes, Inconel718 steel strips, Inconel718 straight bars, Inconel718 wires and supporting welding materials, Inconel718 round cakes, Inconel718 flat steel, Inconel718 hexagonal bars, Inconel718 large and small heads, Inconel718 elbows , Inconel718 tee, Inconel718 processed parts, Inconel718 bolts and nuts, Inconel718 fasteners

InconelX-750 (UNS NO7750)

InconelX-750 characteristics and application fields overview:

This alloy is mainly a nickel-based high-temperature alloy that is age-strengthened with the γ'[Ni3(Al, Ti, Nb)] phase. It has good corrosion resistance and oxidation resistance below 980°C, and has relatively good corrosion resistance below 800°C. High strength, good relaxation resistance below 540°C, and good formability and welding properties. This alloy is mainly used to manufacture corrosion-resistant ring parts for aerospace engines that operate below 800°C and require high strength. , structural parts, bolts and other parts, flat springs and coil springs that work below 540°C and have medium or low stress and require relaxation resistance. It can also be used to manufacture steam turbine turbine blades and other parts.

InconelX- 750 similar brands:

GH4145, GH145 (China), NCl5FeTNbA (France), W.Nr.2.4669, NiCr15Fe7TiAl (Germany), NCF750 (Japan)

InconelX- 750 Metallographic structure:

The structure of this alloy in the standard heat treatment state consists of γ matrix, Ti(C, N), Nb(C, N), M23C6 carbide and γ'[Ni3(Al, Ti , Nb)] phase composition, the γ' content is about 14.5, which is the main strengthening phase of the alloy.

InconelX-750 process performance and requirements:

1. The forging temperature of the alloy is. It is easy to form between 1220 and 950°C. The alloy undergoes solution treatment after the intense forming process.

2. The average grain size of the alloy is closely related to the deformation degree and final forging temperature of the forging. Related.

3. The alloy has good welding properties and can be subjected to various weldings to obtain approximately the strength of the fully heat-treated state.

4. The heat treatment of parts is carried out in a sulfur-free neutral or reducing atmosphere to avoid vulcanization

InconelX-750 main specifications:

InconelX- 750 seamless pipe, InconelX-750 steel plate, InconelX-750 round steel, InconelX-750 forgings, InconelX-750 flange, InconelX-750 ring, InconelX-750 welded pipe, InconelX-750 steel strip, InconelX-750 straight bar, InconelX-750 wire and supporting welding materials, InconelX-750 round cake, InconelX-750 flat steel, InconelX-750 hexagonal rod, InconelX-750 big and small heads, InconelX-750 elbow, InconelX-750 tee, InconelX-750 processing Parts, InconelX-750 bolts and nuts, InconelX-750 fasteners

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