High Quality Inconel Sheets & Plates
600 / 601 / 625 / 718 • Formable • Ductile • Machinable
Get a QuoteInconel Grades 600 / 601 / 625 / 718 Explained
Inconel 600, 601, 625, and 718 are high-performance nickel-based superalloys engineered for extreme temperature, high-pressure, and highly corrosive service environments where ordinary stainless steels and conventional alloys fail. These alloys retain exceptional mechanical strength, oxidation resistance, and structural integrity across a wide temperature range, while offering outstanding resistance to chloride stress corrosion cracking, carburization, and scaling. Each grade is designed for specialized performance—Inconel 600 for general corrosion and heat resistance, 601 for high-temperature oxidation protection, 625 for superior corrosion and fatigue strength, and 718 for ultra-high tensile and creep-rupture strength in critical aerospace and high-stress mechanical systems.
Widely used in aerospace, gas turbines, oil & gas, chemical processing, marine engineering, heat treatment, nuclear power, and high-temperature industrial equipment, these Inconel grades combine lightweight strength with long-term durability under extreme thermal and chemical exposure. Their excellent weldability, fatigue resistance, and resistance to thermal cycling make them ideal for sheets, plates, tubes, and precision-fabricated components in mission-critical applications. With a powerful balance of strength, corrosion resistance, and thermal stability, Inconel 600/601/625/718 are the preferred nickel alloys for high-temperature, high-pressure, and highly corrosive service conditions.
600/601/625/718 INCONEL SHEETS AND PLATES EQUIVALENT GRADES
| STANDARD | UNS | WERKSTOFF NR. | AFNOR | GOST | OR | BS | JIS | EN |
|---|---|---|---|---|---|---|---|---|
| Inconel 600 | N06600 | 2.4816 | NC15FE11M | MHXMu,28-2,5-1,5 | 3I4868 | NA13 | NCF600 | NiCr15Fe |
| Inconel 601 | N06601 | 2.4851 | NC23FeA | XH60BT | 3I4868 | NA49 | NCF601 | NiCr23Fe |
| Inconel 625 | N06625 | 2.4856 | NC22DNB4M | XH75MbTbO | 3I4602 | NA21 | NCF625 | NiCr22Mo9Nb |
| Inconel 718 | N07718 | 2.4668 | – | – | – | – | NCF718 | – |
SPECIFICATION OF INCONEL 600/601/625/718 SHEETS AND PLATES
| Standard | ASTM B168 / ASME SB168 |
|---|---|
| Dimension Standard | JIS, AISI, ASTM, GB, DIN, EN, etc |
| Width | 1000mm, 1219mm, 1500mm, 1800mm, 2000mm, 2500mm, 3000mm, 3500mm, etc |
| Length | 2000mm, 2440mm, 3000mm, 5800mm, 6000mm, etc |
| Thickness | 0.3 mm to 120 mm |
| Form | Coils, Foils, Rolls, Plain Sheet, Shim Sheet, Perforated Sheet, Chequered Plate, Strip, Flats, Blank (Circle), Ring (Flange) etc. |
| Surface Finishing | Hot rolled plate (HR), Cold rolled sheet (CR), 2B, 2D, BA, NO.1, NO.4, NO.8, 8K, mirror, Chequered, embossed, hair line, sand blast, Brush, etching, SATIN (Met with Plastic Coated) etc. |
CHEMICAL COMPOSITION OF INCONEL 600/601/625/718 SHEETS AND PLATES
| Grade | Ni | Fe | C | Mn | Si | Cu | Cr | S | Mo | Co | Al | Ti | Nb |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 600 | 72.0 min | 6.0 – 10.0 | 0.15 max | 1.0 max | 0.5 max | 0.5 max | 14.0 – 17.0 | 0.015 max | – | – | – | – | – |
| 601 | 58.0 – 63.0 | Balance | 0.10 max | 1.0 max | 0.50 max | 1.0 max | 21.0 – 25.0 | 0.015 max | 8.0 – 10.0 | – | 1.0 – 1.7 | – | – |
| 625 | 58.0 max | 5.0 max | .10 max | .50 max | .50 max | – | 20.0 – 23.0 | .015 max | 8.0 – 10.0 | 1.0 max | .40 max | .40 max | 3.15 – 4.15 |
| 718 | 50 – 55 | – | 0.08 max | 0.35 max | 0.35 max | 0.3 max | 17 – 21 | .015 max | 2.8 – 3.3 | 1.0 max | – | – | – |
MECHANICAL PROPERTIES OF INCONEL 600/601/625/718 SHEETS AND PLATES
| Grade | Tensile (psi) | 2% Yield (psi) | Elongation (%) |
|---|---|---|---|
| 600 | 95,000 | 45,000 | 40 |
| 601 | 80,000 | 30,000 | 35 |
| 625 | Psi – 135,000 , MPa – 930 | Psi – 75,000 , MPa – 517 | 42.5 % |
| 718 | Psi – 135,000 , MPa – 930 | Psi – 70,000 , MPa – 482 | 45 % |
MECHANICAL PROPERTIES OF INCONEL 625 AT DIFFERENT TEMPERATURES
| Temp° F | Tensile (psi) | 2% Yield (psi) | Elongation in 2″ (%) |
|---|---|---|---|
| 70 | 144,000 | 84,000 | 44 |
| 400 | 134,000 | 66,000 | 45 |
| 600 | 132,000 | 63,000 | 42.5 |
| 800 | 131,500 | 61,000 | 45 |
| 1000 | 130,000 | 60,500 | 48 |
| 1200 | 119,000 | 60,000 | 34 |
| 1400 | 78,000 | 58,500 | 59 |
| 1600 | 40,000 | 39,000 | 117 |
💡 Practical Difference in Use – Inconel 600 / 601 / 625 / 718
Inconel 600
- Excellent oxidation & carburization resistance
- Good strength at high temperatures
- Resists ammonia, chlorides & alkalis
- Used mainly in heat & chemical environments
Inconel 601
- Superior oxidation resistance above 1000°C
- Excellent spalling resistance
- High aluminum content for furnace use
- Best for extreme thermal cycles
Inconel 625
- Exceptional corrosion resistance
- Very high tensile & fatigue strength
- Resists chloride SCC & seawater
- Best for offshore & chemical service
Inconel 718
- Highest mechanical strength among all
- Outstanding creep & fatigue resistance
- Precipitation-hardened alloy
- Used in aerospace & turbines
Applications of Inconel Sheets and Plates
Inconel 600
- Heat treatment furnaces
- Chemical reactors & heaters
- Electrical resistance equipment
- Condensers & heat exchangers
Inconel 601
- Industrial furnaces & burners
- Radiant tubes & furnace baskets
- Thermal processing equipment
- High-temperature exhaust systems
Inconel 625
- Offshore piping & risers
- Aerospace exhaust systems
- Chemical reactors & tanks
- Seawater heat exchangers
Inconel 718
- Jet engine components
- Gas turbine discs & shafts
- Nuclear reactor components
- High-stress aerospace structures
Industries That Use Inconel 600 / 601 / 625 / 718 Sheets & Plates
Chemical & Heat Processing Industry
Uses
Heaters, reactors, heat exchangers, furnace parts.
Why 600?
Excellent resistance to heat, oxidation & chemicals.
Thermal Processing & Furnace Industry
Uses
Burners, radiant tubes, furnace internals.
Why 601?
Outstanding high-temperature oxidation resistance.
Offshore, Marine & Chemical Industry
Uses
Seawater piping, risers, chemical vessels.
Why 625?
Exceptional corrosion & chloride SCC resistance.
Aerospace, Gas Turbine & Nuclear Industry
Uses
Jet engines, turbine discs, reactor parts.
Why 718?
Highest strength, fatigue & creep resistance.
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