Inconel 909 Scrap/ Inconel 909 Foundry Scrap/ Inco 909 Scrap

Product Description

Incoloy / Inconel 909 (UNS N19909) is an age-hardenable nickel-iron-cobalt controlled-expansion superalloy. It provides high strength combined with a low, constant coefficient of thermal expansion up to 425°C and a high modulus of elasticity. The addition of silicon improves notch rupture strength and heat treatment characteristics over earlier low-expansion alloys like Inconel 903.

Chemical Composition Data (wt %)

No chemical symbols included; values represent standard nominal weight percentages:

Mechanical & Physical Properties (Age-Hardened Condition)

• Density: 8.20 grams per cubic centimeter

• Melting Range: 1395 to 1430 degrees Celsius

• Ultimate Tensile Strength: 1275 Megapascals

• Yield Strength (0.2% Offset): 1035 Megapascals

• Elongation at Break: 15 percent

• Hardness: 34 to 42 Rockwell C

• Coefficient of Thermal Expansion (21°C to 425°C): 7.7 micrometers per meter per degree Celsius

• Maximum Service Temperature: 650 degrees Celsius

Scrap Classification & Re-Melting Guidelines

• Scrap Grade Classification: Premium Vacuum Induction Melting (VIM) / Vacuum Arc Remelting (VAR) quality low-expansion alloy scrap.

• Foundry Forms: Gas turbine seal rings, engine shrouds, heavy forged cutoffs, shaft segments, fasteners, and clean turnings/borings.

• Quality Requirements: Must be strictly segregated from chromium-containing superalloys (such as Inconel 718, 625, or 939) to preserve its zero-chromium low-expansion chemistry profile. Free of oil, dirt, thermal coatings, scale, and non-metallic contamination.