Inconel
What is Inconel?
Inconel is a high-performance nickel-chromium-based superalloy known for its exceptional strength, oxidation resistance, and corrosion resistance at high temperatures. Widely used in aerospace, marine, chemical, and power generation industries, Inconel alloys like 600, 625, and 718 are designed to maintain mechanical integrity under extreme heat and pressure.
Asiad Steel Industries is a trusted supplier of Inconel products, delivering precision-engineered solutions to critical sectors worldwide.
Key Features
Thermal
Stability
Durable
Construction
Precision
Finish
Wide
Compatibility
Corrosion
Resistant
Specifications
| Specification Category | Parameter / Feature | Details / Options |
|---|---|---|
| Size Range | Nominal Size | 10 mm × 10 mm to 500 mm × 500 mm (custom sizes available) |
| Pressure Ratings | ANSI / ASME Class | Class 150, 300, 600, 900, 1500, 2500 |
| PN Ratings | PN6, PN10, PN16, PN25, PN40, PN64 | |
| Product Types | Inconel Pipes | ERW & Seamless, standard wall thickness |
| Inconel Sheets / Plates | 2B, Hot Rolled, Matt, Mirror Finish, Coloured | |
| Inconel Rods / Bars | Round, Hex, Square | |
| Inconel Fittings | Elbows, Tees, Reducers, Couplings | |
| Material Options | Inconel Grades | Inconel 600, Inconel 625, Inconel 718, Inconel X-750, Inconel 825 |
| Other Alloys | Incoloy 800H/800HT, Monel 400/K500 (optional related alloys) | |
| Standards & Certifications | ASTM | ASTM B163, ASTM B167, ASTM B166, ASTM B564, ASTM B435 |
| ASME / ANSI | ASME B36.10, ASME B36.19 | |
| European Standards | EN 10204, EN 10210 | |
| Certifications | ISO 9001, PED 2014/68/EU, NACE MR0175, AS9100 | |
| Design Features | Wall Thickness | As per ASTM B167 / B163, customized options available |
| End Connections | Plain Ends, Beveled Ends | |
| Tolerance | As per ASTM / ASME / EN standards | |
| Coating & Surface Finish | Anti-Corrosion Coating | Passivation, Oxide Layer |
| Optional Coatings | PTFE, PVD, Anodizing | |
| Surface Finish | Mill Finish, Pickled, Polished, Bead Blasted | |
| Testing & Inspection | Pressure Testing | Hydrostatic, Pneumatic |
| Non-Destructive Testing | Radiography (RT), Ultrasonic (UT), Dye Penetrant (DPT) | |
| Destructive Testing | Tensile, Hardness, Impact |
Dimensions
| Product Type | Standard / Grade | Size / Diameter | Thickness / Wall | Length | Weight / Unit |
|---|---|---|---|---|---|
| Inconel Pipes | Inconel 600, 625, 718, 825 | OD: 10 mm – 500 mm | Wall: 1 mm – 50 mm | Custom: 1 m – 6 m | 0.5 kg – 500 kg |
| Inconel Sheets / Plates | Inconel 600, 625, 718, 825 | Width: 200 mm – 2000 mm, Length: 500 mm – 6000 mm | Thickness: 0.5 mm – 100 mm | 500 mm – 6000 mm | 2 kg – 3000 kg |
| Inconel Rods / Bars (Round) | Inconel 600, 625, 718, 825 | Diameter: 6 mm – 200 mm | N/A | 1 m – 6 m | 0.5 kg – 250 kg |
| Inconel Rods / Bars (Hex) | Inconel 600, 625, 718, 825 | Across Flats: 6 mm – 150 mm | N/A | 1 m – 6 m | 0.5 kg – 200 kg |
| Inconel Rods / Bars (Square) | Inconel 600, 625, 718, 825 | 6 mm × 6 mm – 150 mm × 150 mm | N/A | 1 m – 6 m | 0.5 kg – 200 kg |
| Inconel Fittings – Elbows | Inconel 600, 625, 718, 825 | 10 mm – 500 mm | 2 mm – 50 mm | Standard 45°, 90° | 0.2 kg – 100 kg |
| Inconel Fittings – Tees | Inconel 600, 625, 718, 825 | 10 mm – 500 mm | 2 mm – 50 mm | Standard | 0.5 kg – 150 kg |
| Inconel Fittings – Reducers | Inconel 600, 625, 718, 825 | 10 mm – 500 mm | 2 mm – 50 mm | Standard | 0.3 kg – 120 kg |
| Inconel Fittings – Couplings | Inconel 600, 625, 718, 825 | 10 mm – 500 mm | 2 mm – 50 mm | Standard | 0.2 kg – 80 kg |
Mechanical Properties
| Property | Value | Unit / Standard |
|---|---|---|
| Tensile Strength | 550 – 1000 | MPa (Inconel 600, 625, 718) |
| Yield Strength | 220 – 750 | MPa |
| Hardness | 150 – 360 | HB (Brinell) |
| Elongation | ≥ 20 – 45 | % |
| Density | 8.4 – 8.5 | g/cm³ |
| Impact Toughness | ≥ 30 – 80 | J (Charpy, grade-dependent) |
| Modulus of Elasticity (E) | ~207 | GPa |
| Fatigue Strength | 300 – 500 | MPa |
| Corrosion Resistance | Excellent (resistant to oxidation and chemical attack) | – |
| Thermal Conductivity | 11 – 15 | W/m·K |
| Coefficient of Thermal Expansion | 12 – 14 ×10⁻⁶ | /°C |
| Yield Ratio (YS/UTS) | 0.35 – 0.65 | – |
| Poisson’s Ratio | 0.29 – 0.31 | – |
| Brinell Hardness Range | 150 – 360 | HB |
| Surface Finish | Machined, Polished, Passivated | – |
| Welding Type | TIG, MIG, Electron Beam, Resistance Welding | – |
| Operating Temperature Range | -200 to 1000 | °C (grade-dependent) |
| Pressure Rating | Class 150, 300, 600, 900, 1500, 2500 | ASME / ASTM Standards |
Chemical Composition
| Element | Inconel 600 (%) | Inconel 625 (%) | Inconel 800 (%) | Inconel 825 (%) |
|---|---|---|---|---|
| Nickel (Ni) | 72.0 min | 58.0 min | 30.0 – 35.0 | 38.0 – 46.0 |
| Chromium (Cr) | 14.0 – 17.0 | 20.0 – 23.0 | 19.0 – 23.0 | 19.5 – 23.5 |
| Iron (Fe) | 6.0 – 10.0 | 5.0 max | 39.5 min | 22.0 min |
| Molybdenum (Mo) | — | 8.0 – 10.0 | — | 2.5 – 3.5 |
| Niobium + Tantalum (Nb+Ta) | — | 3.15 – 4.15 | — | — |
| Copper (Cu) | — | 0.50 max | — | 1.5 – 3.0 |
| Carbon (C) | 0.15 max | 0.10 max | 0.10 max | 0.05 max |
| Manganese (Mn) | 1.0 max | 0.50 max | 1.50 max | 1.0 max |
| Silicon (Si) | 0.50 max | 0.50 max | 1.00 max | 0.50 max |
| Sulfur (S) | 0.015 max | 0.015 max | 0.015 max | 0.015 max |
| Titanium (Ti) | — | 0.40 max | 0.15 – 0.60 | 0.20 – 0.80 |
| Aluminum (Al) | — | 0.40 max | 0.15 – 0.60 | 0.20 – 0.80 |
Applications of Inconel
Construction &
Infrastructure
Automotive & Heavy
Equipment
Manufacturing &
Fabrication
Medical & Laboratory
Equipment
Electrical &
Electronics Assembly
Oil, Gas & Petrochemical
Installations
Do you have questions?
What is the main advantage of Inconel over stainless steel?
Can Inconel be welded?
What are the common grades of Inconel used?
Is Inconel suitable for marine applications?
