Incoloy 909 (UNS N19909)
Category: INCOLOY
Overview
INCOLOY 909 (UNS N19909) is a nickel-iron-cobalt alloy whose outstanding characteristics are a constant low coefficient of thermal expansion, a constant modulus of elasticity, and high strength. The alloy is strengthened by a precipitation-hardening heat treatment made possible by additions of niobium and titanium.
The combination of low expansion and high strength makes INCOLOY alloy 909 especially useful for gas turbines. The low expansion enables closer control of clearances and tolerances for greater power output and fuel efficiency. The high strength increases strength-to-weight ratios for lower weight in aircraft engines. For those reasons, INCOLOY alloy 909 is used for gas-turbine vanes, casings, shafts, and shrouds.
Chemical Composition
| Ni | Fe | Cr | Ta | Cu | Co | Al | Ti | P | B | C | Mn | S | Si | |
| MIN | 35 | 36.3 | 12 | 1.3 | 0.25 | |||||||||
| MAX | 40 | 46.9 | 1 | 0.05 | 0.5 | 16 | 0.15 | 1.8 | 0.015 | 0.012 | 0.06 | 1 | 0.015 | 0.5 |
Physical Properties
| Density | 8.19 g/cm³ |
| Melting Range | 1394-1430℃ |
Available Products and Specifications
| Billets | SAE AMS 5884 |
| Bars and forgings | SAE AMS 5892 |
| Sheet and strip | SAE AMS 5893 |
Features
● This is a nickel-cobalt-iron alloy with high strength and a stable, or constant, coefficient of thermal expansion and constant modulus of elasticity.
Applications
● A typical application utilizes the constant coefficient of expansion characteristic of this alloy for uses such as gas turbine shrouds, high temperature bolting and gauge blocks.
Keywords: Incoloy 909 (UNS N19909)
Previous page
Next page
Inquire Now
Note: Please leave your email address, our professionals will contact you as soon as possible!
About Us
Welcome to ZK Alloy, we are professional manufacturer for special alloy materials with twelve years experiences, we mainly produce inconel, monel, hastelloy, high temperature alloy and other nickel based alloy products, which are widely used in aerospace, oil and gas, energy and environmental, automotive, chemical, industrial valves, communication electronics and other industries.
Our Services