What Is nickel-based high temperature alloy 600?
Alloy 600, also known as Inconel 600, is a nickel-chromium alloy known for its excellent resistance to high-temperature corrosion and oxidation.
It belongs to the Inconel family of alloys, which are renowned for their exceptional performance in challenging environments. Alloy 600 is composed primarily of nickel (around 72%) and chromium (about 15%), with smaller amounts of iron, as well as additional elements such as manganese and copper.
Alloy 600 is specifically designed to maintain its mechanical integrity and resist corrosion at elevated temperatures. It can withstand temperatures ranging from cryogenic levels to around 1093°C (2000°F).
Alloy 600 exhibits good resistance to a wide range of corrosive environments, including nitric and sulfuric acids, alkaline solutions, and various gases.
What are the characteristics of Inconel 600?
Resistant to a wide range of corrosive media.
Virtually immune to chlorine ion stress corrosion cracking
Non-magnetic
Excellent mechanical properties
High strength and good weldability under a wide range of temperatures
What is the chemical composition of the high-temperature alloy Inconel 600?
| Element | Minimum (%) | Maximum (%) | Role in Alloy Performance |
| Nickel (Ni) | 72 | - | Primary matrix element; corrosion resistance in reducing environments, thermal stability |
| Chromium (Cr) | $14 | 17.0000 | Oxidation resistance through Cr₂O₃ surface layer; resistance to high-temperature sulfidation |
| Iron (Fe) | 6 | 10 | Solid-solution strengthening; cost reduction vs pure nickel matrix |
| Manganese (Mn) | - | 1 | Deoxidation during melting; minor solid-solution strengthener |
| Silicon (Si) | - | 0.5 | Deoxidation improves oxidation resistance at temperatures above 1,800°F |
| Copper (Cu) | - | 0.5 | Corrosion resistance in reducing acid environments |
| Carbon (C) | - | 0.15 | Carbide formation at grain boundaries is controlled to prevent sensitization |
| Sulfur (S) | - | 0.015 | Impurity; controlled to prevent hot cracking during welding |
In what form is Inconel 600 Available?
Sheet
Plate
Bar
Pipe & Tube (welded & seamless)
Fittings
Elbows, tees, stub-ends, returns, caps, crosses, reducers, pipe nipples. etc.
Room Temperature Mechanical Properties
Plate & Sheet ASTM B168
| Property | Min |
| Tensile Strength, Rm | ≥550 MPa |
| 0.2% Yield Strength, Rp0.2 | ≥240 MPa |
| Elongation | ≥30 % |
| Hardness | ≤95 HRB |
Bar & Rod ASTM B166
| Property | Min |
| Tensile Strength, Rm | ≥550 MPa |
| 0.2% Yield Strength, Rp0.2 | ≥240 MPa |
| Elongation | ≥30 % |
| Hardness | ≤95 HRB |
Seamless Pipe & Tube ASTM B167 / ASTM B163
| Property | Min |
| Tensile Strength, Rm | ≥550 MPa |
| 0.2% Yield Strength, Rp0.2 | ≥240 MPa |
| Elongation | ≥30 % |
Regular Available Size Range about inconel 600
Plate & Sheet
Cold rolled sheet ：0.3 mm ~ 6.0 mm
Standard width: 1000 / 1219 / 1500 mm
Hot rolled plate ：6 mm ~ 80 mm Max width up to 2000 mm
Bar & Rod
Hot rolled round bar：Ø16 mm ~ Ø300 mm
Cold finished bright bar ：Ø6 mm ~ Ø60 mm
Tolerance: h8 /h9 available
Seamless Tube / Pipe
Outer Diameter (OD)：6 mm ~ 325 mm
Wall Thickness (WT)：1.0 mm ~ 30 mm
Available schedule: SCH10, SCH40, SCH80, SCH160, XXS
In what applications is Inconel 600 used?
Chemical industry
Aerospace
Heat treating industry
Pulp and paper industry
Food processing
Nuclear Engineering
Gas turbine components
Seamless tubes are used for heat exchange and high-pressure fluid transportation.
Bars are supplied for machining fasteners, shafts and mechanical components.
Plates & sheets are ideal for welded vessels, furnace linings and structural baffles.
Manufacturing Process & Heat Treatment
Our end-to-end process control, from melting to finished product, ensures exceptional quality at every stage. Understanding the heat treatment processes helps you evaluate the final material condition.
Full-Process Manufacturing Control:
Melting: Utilizes advanced processes like AOD/VIM for precise composition control and impurity removal.
Forging/Rolling: Transforms ingots into semi-finished products such as bars, plates, and tubes through hot and cold working processes.
Heat Treatment: Precisely controlled heat treatment cycles to achieve optimal microstructure and mechanical properties.
Machining: For precision components, we offer one-stop machining services to meet your final dimensional requirements.
Inspection: Strictly implements non-destructive testing (e.g., ultrasonic, eddy current) and destructive testing (tensile, hardness, metallography) to ensure zero defects.
Heat Treatment Process Parameters:
Annealing: Aims to soften the material for subsequent forming. A typical process involves holding at approximately 1010°C for about 15 minutes, followed by rapid cooling.
Solution Annealing: Aims to dissolve carbides and promote grain growth, enhancing creep resistance and rupture strength. A typical process involves holding at 1090-1150°C for 1-2 hours, followed by rapid cooling.
Our Factory Core Strengths as Professional inconel 600 Supplier
Full Integrated Closed-Loop Production Line: Independent vacuum smelting, hot forging, cold rolling, heat treatment, surface finishing workshops, fully control product quality & delivery schedule
Mandatory VIM+VAR Double Vacuum Melting for Aviation Grade: Meet international aerospace superalloy AMS standards, zero critical internal defects for rotating safety parts
Full Customization Support: Custom diameter, thickness, length, surface finish, laser cutting blanking, closed-die precision forgings per customer drawings
Multi-Round Strict Quality Inspection: Raw material inspection → Mid-process metallurgical test → Finished product NDT & dimension inspection → Final surface & mechanical performance test before shipment
18 Years High-Temperature Alloy Export Experience: Familiar with international logistics, customs clearance, MTC certification and dual-use material export procedures for aerospace alloys
Free One-Stop Technical Support: Provide alloy comparison reports, high-temperature performance data, aging heat treatment & welding processing guidance upon inquiry
What can we offer you about inconel 600?
Fixed-length Cutting
Tube End Machining
Heat Treatment
Surface Treatment
Forming Processing
Destructive and Non-Destructive Testing
Mechanical examining like tensile, Elongation and reduction of area.
Chemical examination
Radiographic Test
Pitting Corrosion Test
Positive material recognition
Eddy Current test
Buckling & Crushing test
UT ultrasonic testing
Laser flaw detection
Liquid Penetrant Testing
Mechanical property testing
Long-term high-temperature test
Radiographic testing
Click to view the professional certificates for our Inconel 600 alloy.
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What is standard delivery condition?
Solution annealed, pickled & descaled. Hard cold worked status available upon special request.
Is Inconel 600 magnetic?
Non-magnetic under annealed condition. Slight weak magnetism may appear after heavy cold working.
Max continuous working temperature of Inconel 600?
1095℃ in oxidizing atmosphere. Avoid long service at 540℃ ~ 760℃, carbide precipitation will reduce ductility.
What are its main advantages?
Excellent high-temperature oxidation resistance; good resistance to caustic corrosion; outstanding resistance to chloride stress corrosion cracking (SCC); stable performance under carburizing & nitriding atmosphere.
What environments is Inconel 600 NOT recommended?
It contains no molybdenum, poor resistance to pitting & crevice corrosion. Not suitable for stagnant seawater, concentrated hot sulfuric acid. For these media choose Inconel 625 / Alloy C276.
