Nickel-Copper High Corrosion Resistant Alloy
Monel 400 is a nickel-copper alloy composed of approximately 66% nickel and 31% copper, maintaining excellent corrosion resistance and mechanical strength even in strong acids and seawater environments. It has high ductility and strength from low to high temperatures, and is applied to various industries due to its non-magnetic properties and excellent workability and weldability.

Key Features

• - Excellent corrosion resistance in seawater and chloride ion environments
• - Superior resistance to sulfuric acid, hydrochloric acid, hydrofluoric acid, etc.
• - Outstanding strength and ductility in low to high temperature ranges
• - Strong resistance to stress corrosion cracking (SCC)
• - Non-magnetic at room temperature
• - Excellent workability and weldability

Main Applications

• - Seawater pumps, heat exchangers, valves, marine piping
• - Sulfuric acid and hydrochloric acid tanks and chemical process equipment
• - Petrochemical plant components, high-temperature shafts
• - Precision machinery parts, electrochemical electrodes

Nickel-Chromium-Iron-Aluminum Alloy Resistant to High-Temperature Oxidation and Scaling
INCONEL 601 is a high-temperature material with a small amount of Al added to Ni-Cr-Fe alloy, exhibiting excellent resistance to high-temperature oxidation and scaling. It maintains structural stability and mechanical properties even in air, combustion gas, and steam environments, and is widely used in heat treatment and high-temperature equipment. It also has excellent workability and weldability, making it suitable for manufacturing complex structures.

Key Features

• - Excellent oxidation resistance in high-temperature air and combustion gas environments
• - Outstanding scaling resistance due to aluminum addition
• - Maintains mechanical strength and toughness at high temperatures
• - Resistance to carbides and precipitates
• - Excellent weldability and workability
• - Limited corrosion resistance in nitric acid, sulfuric acid, and chloride environments

Main Applications

• - Heat treatment furnace internal components, jigs, supports, racks
• - Chemical process heat exchangers, combustion chambers, high-temperature exhaust systems
• - High-temperature equipment parts for metal and glass manufacturing
• - Waste gas treatment equipment, combustion gas ducts, gas turbine components
• - Industrial parts exposed to high-temperature oxidation and scaling

Nickel-Chromium-Iron Alloy Suitable for High-Temperature Oxidation and Corrosive Environments
INCONEL 600 is a high-temperature alloy based on nickel (Ni), chromium (Cr), and iron (Fe), exhibiting excellent corrosion resistance in oxidizing, reducing, and neutral atmospheres. It maintains excellent stability and mechanical properties even in high-temperature air, steam, and chloride environments, and has excellent resistance to SCC (stress corrosion cracking), making it widely used in chemical, nuclear, and aerospace fields.

Key Features

• - Excellent oxidation resistance in high-temperature air, gas, and steam environments
• - SCC resistance in chloride environments
• - Corrosion resistance in various acid and alkali environments
• - Maintains structural stability and mechanical strength at high temperatures
• - Excellent workability and weldability
• - Non-magnetic

Main Applications

• - Chemical process heat exchangers, reactors, distillation column components
• - Heat treatment furnace internal components (trays, racks, jigs, etc.)
• - Nuclear power plant steam generators and high-temperature piping
• - Industrial equipment in high-temperature steam and gas environments
• - Aircraft engine components, fuel systems, exhaust lines

Ni-Cr-Co-Mo Based Super Heat-Resistant Alloy for Ultra-High Temperature Environments
Inconel 617 is a high-performance heat-resistant alloy with nickel (Ni), chromium (Cr), cobalt (Co), and molybdenum (Mo) as main components, maintaining excellent mechanical strength and oxidation resistance even in ultra-high temperature environments above 1000℃. It provides strong oxidation resistance and structural stability in high-temperature gas, high-pressure steam, and combustion gas environments, and is widely used in gas turbines, heat exchangers, and petrochemical plant high-temperature components.

Key Features

• - Outstanding tensile strength and creep resistance at high temperatures
• - Excellent resistance to high-temperature oxidation and sulfidation environments
• - Stable performance in high-temperature gas, steam, and combustion residues
• - Excellent weldability and workability even at high temperatures
• - Suitable durability for high-temperature piping and heat exchangers

Main Applications

• - Gas turbine combustors, baffles, liners, combustion chamber components
• - High-temperature heat exchanger tubes, heat recovery steam generators (HRSG)
• - High-temperature reactor components in petrochemical plants
• - High-temperature gas cooling furnaces, waste gas treatment systems
• - Power plant and energy equipment components under high-temperature and high-load conditions

Ni-Cr-Mo-Nb Alloy with Excellent Corrosion Resistance and High Strength
Inconel 625 is a high-corrosion-resistant and high-strength alloy with nickel (Ni), chromium (Cr), molybdenum (Mo), and niobium (Nb) as main components, providing excellent corrosion resistance and high mechanical strength in both oxidizing and reducing environments. It maintains high strength and ductility even after welding without post-weld heat treatment, and exhibits stable performance in seawater, chemicals, and high-temperature and high-pressure environments.

Key Features

• - Excellent corrosion resistance in high-temperature and extreme corrosive environments
• - Stable in high-concentration chlorides, sulfuric acid, nitric acid mixed acids, etc.
• - Outstanding mechanical strength and fatigue resistance even at high temperatures
• - Excellent microstructural stability after welding
• - Wide application in marine, chemical, and aerospace industries

Main Applications

• - Marine structures, heat exchangers, piping
• - Chemical plant reactors, discharge systems
• - Aircraft engine and fuel system components
• - Nuclear power plant piping and cladding

Ni-Cr-Fe Alloy Optimized for High-Temperature Steam and Oxidizing Environments
Inconel 690 is a Ni-Cr-Fe alloy containing high chromium (Cr) content, exhibiting excellent corrosion resistance and oxidation resistance in high-temperature steam, oxidizing gases, and high-temperature chloride environments. It is suitable for equipment requiring structural stability in high-temperature and high-pressure environments such as steam generator tubes in nuclear power plants.

Key Features

• - Excellent oxidation resistance in high-temperature steam and oxidizing environments
• - Stress corrosion cracking resistance in high-chloride environments
• - Maintains mechanical stability and corrosion resistance even at high temperatures
• - Increased Cr content compared to Inconel 600 → improved oxidation resistance
• - Core material for nuclear power and high-temperature heat exchangers

Main Applications

• - Steam generator tubes, power plant heat exchangers
• - High-temperature piping for chemical processes
• - Exhaust systems in high-temperature oxidizing environments
• - Heat treatment furnace internal structures

Ni-Fe-Cr Alloy for High-Temperature Structural Applications
Incoloy 800 is an oxidation-resistant alloy based on nickel-iron-chromium (Ni-Fe-Cr), exhibiting excellent structural stability and oxidation resistance at high temperatures. It maintains a stable microstructure even in environments with repeated high-temperature stress and thermal cycling, and has excellent resistance to carbide precipitation and intergranular corrosion during long-term use.

Key Features

• - Excellent stability in high-temperature oxidation and thermal cycling environments
• - High-temperature tensile strength and creep resistance
• - Resistance to intergranular carbide precipitation
• - Limited corrosion resistance to nitric acid, sulfuric acid, chlorides, etc.
• - Good workability and weldability

Main Applications

• - Heat treatment furnace internal structures
• - Petrochemical plant piping, heat exchangers
• - High-temperature reactors, commercial heating equipment
• - Boilers, steam distribution lines

Incoloy 800 Series Alloy with Enhanced High-Temperature Strength and Creep Resistance
Incoloy 800HT is an alloy that optimizes carbon content and Al+Ti composition ratio based on Incoloy 800 to improve high-temperature tensile strength and creep resistance. It has excellent microstructural stability and crack resistance during long-term high-temperature use, and is widely applied to high-temperature structural components.

Key Features

• - Enhanced high-temperature strength and creep resistance compared to Incoloy 800
• - Excellent oxidation resistance in high-temperature oxidizing environments
• - Improved intergranular precipitation resistance and microstructural stability
• - ASME high-temperature design data available
• - Suitable for long-term use under high-temperature and high-stress conditions

Main Applications

• - Petrochemical plant high-temperature pipes
• - Heat treatment furnace jigs, trays, supports
• - High-temperature reactors, cracking systems
• - High-temperature piping systems for energy plants

Ni-Fe-Cr-Mo-Cu Alloy Stable in Both Oxidizing and Reducing Environments
Incoloy 825 is a high-corrosion-resistant alloy with molybdenum, copper, and titanium added to nickel, iron, and chromium base, providing stable performance in both oxidizing and reducing corrosive environments. It has resistance to various corrosive media such as sulfuric acid, phosphoric acid, seawater, and chlorine compounds, and is particularly strong against stress corrosion cracking (SCC) and localized corrosion.

Key Features

• - Corrosion resistance in acid-alkali mixed environments
• - Resistance to stress corrosion cracking and intergranular corrosion
• - Excellent stability in sulfuric acid, phosphoric acid, seawater, and oxidizing-reducing mixed systems
• - Good workability and weldability

Main Applications

• - Chemical process storage tanks and piping
• - Seawater handling equipment, heat exchangers
• - Waste gas treatment and pollution control systems
• - Phosphoric acid and sulfuric acid-based chemical equipment

Versatile High-Corrosion-Resistant Alloy, Optimal for Advanced Chemical Environments
Hastelloy C-22 has higher chromium content and optimized composition compared to Hastelloy C-276, exhibiting even more excellent corrosion resistance in complex conditions where oxidizing and reducing environments coexist. It has excellent resistance to localized corrosion even in the presence of chlorides, and is a stable choice in various strong acids and mixed systems.

Key Features

• - Enhanced response to oxidizing environments due to increased chromium content
• - Applicable to a wider range of corrosive media compared to C-276
• - Stable in chlorine-based compounds, oxidizing agents, organic acids, and inorganic acids
• - Suitable for high-purity chemical and semiconductor processes

Main Applications

• - High-purity chemical reactors, purifiers
• - Semiconductor acid treatment equipment, pollution control components
• - Equipment in mixed acid and oxidizing salt environments
• - Heat exchangers, pipes, tank liners

Ni-Mo-Cr-W Based Superalloy for Extreme Environments
Hastelloy C-276 has nickel, molybdenum, chromium, and tungsten as main components, and is a representative super-corrosion-resistant alloy that provides excellent durability even in the most severe corrosive environments. It has excellent resistance to strong oxidizing or reducing chemicals, mixed acids, chlorides, seawater, etc., and has strong resistance to localized corrosion and SCC.

Key Features

• - Excellent corrosion resistance to oxidizing and reducing chemicals in general
• - Strong against localized corrosion, SCC, and pitting corrosion
• - Excellent weldability and thermal stability
• - Suitable for pollution control equipment or fine chemical processes

Main Applications

• - Chemical and pharmaceutical reactors, heat exchangers, piping
• - Seawater desalination equipment, pollution control equipment
• - Acid manufacturing equipment, chlorine-based treatment systems
• - Mixed acid corrosive environments at high temperature and high pressure