UNS N19907 Incoloy 907 Round Bar Low Expansion Alloy For Gas Turbine Components
UNS N19907 Incoloy 907 Round Bar – Low Expansion Alloy for Gas Turbine Components
Product Overview
Incoloy 907, designated UNS N19907, is a high-strength, low-expansion nickel-iron-cobalt alloy engineered for demanding applications in aerospace, power generation, and chemical processing. This alloy offers exceptional resistance to thermal fatigue, low thermal expansion, and high strength at elevated temperatures, making it ideal for components such as gas turbine seals, shafts, casings, and other structural parts.
Chemical Composition
| Element | Composition (%) |
|---|---|
| Nickel (Ni) | 35.0 – 40.0 |
| Cobalt (Co) | 12.0 – 16.0 |
| Iron (Fe) | Balance |
| Niobium (Nb) | 4.3 – 5.2 |
| Titanium (Ti) | 1.3 – 1.8 |
| Aluminum (Al) | ≤0.2 |
| Silicon (Si) | 0.07 – 0.35 |
Mechanical Properties
| Property | Value (Age-Hardened) |
|---|---|
| Yield Strength | 1100 MPa |
| Tensile Strength | 1350 MPa |
| Elongation at Break | 10% |
| Modulus of Elasticity | 165 GPa |
| Poisson’s Ratio | 0.36 |
Physical Properties
| Property | Value |
|---|---|
| Density | 8.33 g/cm³ |
| Melting Range | 1335 – 1400°C |
| Thermal Conductivity | 15.6 W/m- °C |
| Electrical Resistivity | .0.697µΩ-m |
| Specific Heat Capacity | 431 J/g·°C |
Applications
Incoloy 907 rods are utilized in various high-performance applications, including:
-
Gas turbine components (seals, shafts, casings)
-
Aerospace structural parts
-
Power generation equipment
-
Chemical processing equipment
-
Glass-to-metal sealing
Frequently Asked Questions
-
What is Incoloy 907?
-
Incoloy 907 is a nickel-iron-cobalt alloy with additions of niobium and titanium, providing high strength and low thermal expansion
-
-
What are the key benefits of using Incoloy 907 rods?
-
They offer high strength, low thermal expansion, excellent resistance to thermal fatigue, and good machinability.
-
-
What are the typical applications of Incoloy 907 rods?
-
They are used in gas turbines, aerospace components, power generation equipment, and chemical processing industries.
-
-
What are the heat treatment requirements for Incoloy 907?
-
Solution anneal at 980°C for 1 hour, followed by aging treatments at 720°C or 775°C, depending on the application.
-
-
Is Incoloy 907 weldable?
-
Yes, Incoloy 907 can be welded using standard welding techniques with appropriate filler materials.
-
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.