PowerSteel.eu Nickel alloys Inconel® 718 / 2.4668 / UNS N07718 / Alloy 718 / SB 637 BÖHLER

Inconel® 718 / 2.4668 / UNS N07718 / Alloy 718 / SB 637 BÖHLER

On stock
Round Bars 10–130 mm
SB 637, AMS 5662, AMS 5663
Norms:
Tensile Strength Rm:
from 1241 MPa
Yield Strength:
from 1034 MPa
Working temperature:
Equivalent or similar:
Alloy 718 Mar Material acc. to API 6A Standard (API American Petroleum Institute)

About material

INCONEL® alloy 718 (UNS N07718/W.Nr. 2.4668) is a

Inconel 718 – Material for Extreme Conditions

Inconel 718 is a premium nickel-chromium alloy offering exceptional corrosion resistance, thermal stability, and strength in demanding conditions. These characteristics make it an ideal choice for the energy sector, aerospace, automotive industries, and other fields where materials face extreme pressure, high temperatures, and corrosive environments.

Properties of Inconel 718

Inconel 718 is known for its:

  • Corrosion Resistance – Inconel 718 resists oxidation and corrosion, even in aggressive chemical environments.
  • High Strength – With precise heat treatment, Inconel 718 achieves remarkable strength and stability across a wide temperature range.
  • Exceptional Toughness – The material maintains flexibility and resistance to cracking under both low and high temperatures.

Applications of Inconel 718

Thanks to its unique properties, Inconel 718 is widely used in the following applications:

  • Turbines and Generators – Its heat resistance makes it ideal for components exposed to extreme temperatures and high pressure.
  • Engine Components – In the automotive and aerospace industries, it is used for critical engine parts requiring stability and strength at high temperatures.
  • Industrial Equipment – Inconel 718 finds application in equipment exposed to chemical reactions, where it maintains high performance and reliability over time.

WTE PowerSteel is a leading stockist and global distributor of Inconel 718, supplying this high-performance alloy to industries worldwide. With a focus on quality and technical expertise, WTE PowerSteel offers reliable support and guidance in selecting and processing Inconel 718 for your specific needs and applications. Contact us for more information on our worldwide distribution and how Inconel 718 can benefit your projects.

Chemical Composition

Inconel® 718’s composition enables exceptional resistance to oxidation, corrosion, and mechanical stress:

Element Percentage (%)
Nickel (Ni) 50.0 – 55.0
Chromium (Cr) 17.0 – 21.0
Iron (Fe) Balance
Molybdenum (Mo) 2.8 – 3.3
Niobium (Nb) 4.75 – 5.50
Titanium (Ti) 0.65 – 1.15
Aluminum (Al) 0.2 – 0.8
Manganese (Mn) 0.35 max
Silicon (Si) 0.35 max
Carbon (C) 0.08 max
Phosphorus (P) 0.015 max
Sulfur (S) 0.015 max

Mechanical Properties (at Room Temperature)

Property Typical Value
Density 8.19 g/cm³
Tensile Strength 965 – 1275 MPa
Yield Strength (0.2% offset) 550 – 1035 MPa
Elongation at Break 12-25%
Hardness 330 HBW
Modulus of Elasticity 205 GPa

Mechanical Properties (at Elevated Temperature)

Inconel® 718 performs exceptionally in high-stress applications with temperatures up to 700°C (1292°F), combining high tensile strength with substantial resistance to creep and stress rupture.

Temperature (°C) Tensile Strength (MPa) Yield Strength (MPa) Creep Rupture Strength (1000 hrs)
500 900 650 300
600 750 580 200
700 650 500 150

Physical Properties

Property Value
Thermal Conductivity 11.4 W/m·K
Electrical Resistivity 1.3 µΩ·m
Thermal Expansion 12.8 µm/m·°C (20 – 700°C)
Specific Heat Capacity 435 J/kg·K

Corrosion and Oxidation Resistance

Alloy 718 has high corrosion resistance across a wide temperature range, with excellent performance in oxidative and slightly acidic environments, even under corrosive elements typical in marine, oil, and gas industries.

Key Performance Features

  • High Strength at Elevated Temperatures: Maintains tensile and yield strength at temperatures up to 700°C, making it suitable for jet engines and gas turbines.
  • Outstanding Creep and Stress Rupture Resistance: Designed for high-stress applications that demand durability and reliability over long-term, high-temperature exposure.
  • Corrosion and Oxidation Resistance: Withstands corrosive environments and retains oxidation resistance under thermal cycling conditions.
  • Ease of Fabrication: Inconel 718 is workable through welding, machining, and forming, making it versatile for complex components.

Inconel® 718’s balance of high-temperature performance, corrosion resistance, and durability makes it ideal for critical applications like turbine components, nuclear reactors, downhole tools in oil and gas, and aerospace engine parts where material failure is not an option.

Round bar Inconel® 718 / 2.4668
Kruhová tyč Inconel® 718 / 2.4668
Kruhová tyč Inconel® 718 / 2.4668
Pręt okrągły Inconel® 718 / 2.4668
Rundstab Inconel® 718 / 2.4668
Barre ronde Inconel® 718 / 2.4668
Barra redonda Inconel® 718 / 2.4668
Barra redonda Inconel® 718 / 2.4668
Barra tonda Inconel® 718 / 2.4668
Ronde staaf Inconel® 718 / 2.4668
Rundstang Inconel® 718 / 2.4668
Rundstång Inconel® 718 / 2.4668
Pyörötanko Inconel® 718 / 2.4668
Rundstang Inconel® 718 / 2.4668
Kerek rúd Inconel® 718 / 2.4668
Bară rotundă Inconel® 718 / 2.4668
Кръгла шина Inconel® 718 / 2.4668
Στρογγυλή ράβδος Inconel® 718 / 2.4668
Круглый пруток Inconel® 718 / 2.4668
Круглий пруток Inconel® 718 / 2.4668
Okrugla šipka Inconel® 718 / 2.4668
Okrugla šipka Inconel® 718 / 2.4668
Okrugla šipka Inconel® 718 / 2.4668
Okrogla palica Inconel® 718 / 2.4668
Shufër e rrumbullakët Inconel® 718 / 2.4668
Ümarvarras Inconel® 718 / 2.4668
Apaļstienis Inconel® 718 / 2.4668
Apvalus strypas Inconel® 718 / 2.4668
Virga tonda Inconel® 718 / 2.4668
Hringstangir Inconel® 718 / 2.4668

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