Kanakratna Steelage Private Limited

Inconel 718, designated as UNS N07718, is a high-strength, corrosion-resistant nickel-chromium alloy that is extensively used in environments exposed to extreme temperatures, pressure, and aggressive corrosion. When manufactured in sheet form, it is widely employed in aerospace structures, gas turbines, chemical processing equipment, nuclear reactors, and marine applications.

The sheet form of this alloy offers superior formability, fatigue resistance, and creep strength, which makes it ideal for components that require precision fabrication and long service life in high-stress environments.

The chemical composition of Inconel 718 is carefully engineered to balance mechanical performance and corrosion resistance:

One of the defining strengths of Inconel 718 sheets is their impressive mechanical profile, especially under high temperatures and long-term loads:

Inconel 718 achieves its strength through precipitation hardening via the formation of γ'' (gamma double prime – Ni3Nb) and γ' (gamma prime – Ni3(Al, Ti)) phases.

Inconel 718 Sheets must comply with several international specifications for quality and traceability:

• 0.8 mm, 1 mm, 2 mm, 3 mm, 4 mm, 5 mm

Additional Information:

• Production Capacity: IN TONS
• Delivery Time: READY STOCK
• Packaging Details: The packaging of the product is done using an effective method of packaging. It all includes- • Shrink-wrapping • Bubble wrapping • Carton boxes • Wooden crates/pallets/boxes

Inconel 718 (UNS N07718 / W.Nr. 2.4668) is a nickel-chromium superalloy that has earned global recognition for its exceptional combination of high strength, corrosion resistance, and remarkable weldability. Unlike many other nickel alloys, Inconel 718 maintains outstanding performance from cryogenic temperatures up to about 704 °C (1300 °F).

The round bar form of Inconel 718 is widely used in industries such as aerospace, oil & gas, marine, chemical processing, and nuclear engineering, where both mechanical reliability and corrosion resistance are critical. Its ability to resist creep, stress rupture, fatigue, and oxidation makes it ideal for rotating parts, fasteners, shafts, and components exposed to extreme thermal and mechanical loads.

• Tensile Strength: ~1375 MPa

• Yield Strength (0.2% offset): ~1035 MPa

• Elongation: ~12 – 20%

• Hardness: ~363 HB

• Fatigue Strength: Excellent under cyclic loads

• Creep-Rupture Strength: Outstanding up to 650 °C

• Density: 8.19 g/cm³

• Melting Range: 1260 – 1336 °C

• Elastic Modulus: ~200 GPa

• Thermal Conductivity: 11.4 W/m·K at 100 °C

• Specific Heat: 435 J/kg·K

• Electrical Resistivity: 125 μΩ·cm

• Magnetic: Non-magnetic in annealed condition

• Mechanical Testing: Tensile, impact, hardness.

• Corrosion Tests: Pitting and crevice testing.

• NDT: Ultrasonic, Eddy current, MPI.

• Dimensional Accuracy: Tolerances per ASTM/ASME.

• Microstructural Analysis: To ensure correct γ′/γ″ precipitation.

Additional Information:

• Production Capacity: 20 TONS
• Delivery Time: READY STOCK
• Packaging Details: The packaging of the product is done using an effective method of packaging. It all includes- • Shrink-wrapping • Bubble wrapping • Carton boxes • Wooden crates/pallets/boxes

Inconel 718, also known by its UNS designation N07718 and Werkstoff Nr. 2.4668, is one of the most widely used nickel-chromium superalloys in demanding engineering applications. Developed in the 1960s, it became a cornerstone alloy for aerospace engines, gas turbines, oil & gas equipment, and chemical process plants due to its unique balance of high strength, corrosion resistance, weldability, and fatigue performance.

In its plate form, Inconel 718 offers engineers a versatile material that can be cut, machined, formed, and fabricated into critical components such as heat shields, turbine casings, structural panels, and pressure vessel plates. Unlike some superalloys, Inconel 718 combines excellent mechanical strength with good fabrication properties, making it the preferred material for both high-temperature and cryogenic applications.

• Tensile Strength: ~1375 MPa

• Yield Strength (0.2%): ~1035 MPa

• Elongation: 12–20%

• Hardness: ~363 HB

• Creep-Rupture Strength: Excellent up to 650 °C

• Fatigue Life: Very high under cyclic stresses

• Density: 8.19 g/cm³

• Melting Range: 1260 – 1336 °C

• Elastic Modulus: 200 GPa

• Thermal Conductivity: 11.4 W/m·K at 100 °C

• Specific Heat: 435 J/kg·K

• Electrical Resistivity: 125 μΩ·cm

• Magnetic Behavior: Non-magnetic (annealed condition)

The strength of Inconel 718 plate is derived from precipitation hardening involving two primary phases:

• γ′ (Ni₃(Al,Ti)) → enhances strength.

• γ″ (Ni₃Nb) → main hardening phase unique to Inconel 718.

• Chemical Analysis: Spectrographic and wet analysis.

• Mechanical Testing: Tensile, hardness, impact tests.

• Corrosion Testing: Pitting, crevice, intergranular corrosion.

• NDT: Ultrasonic, radiographic, eddy current inspection.

• Dimensional Tolerance: Per ASTM B670 and AMS standards.

Additional Information:

• Production Capacity: IN TONS
• Delivery Time: READY STOCK
• Packaging Details: The packaging of the product is done using an effective method of packaging. It all includes- • Shrink-wrapping • Bubble wrapping • Carton boxes • Wooden crates/pallets/boxes