Inconel 939 Scrap / Inconel 939 Turbine Scrap / Inco 939 Blade VAC Scrap / Nickel Round Bar

Product Description

Inconel 939 (IN939) is a high-chromium, high-cobalt nickel-based cast superalloy engineered specifically for elevated-temperature service (up to 850°C / 1560°F). It provides exceptional creep rupture strength and hot corrosion resistance in industrial gas turbine blades, vanes, and hot-section castings.

Chemical Composition Data (wt %)

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

Mechanical Properties (Heat-Treated / Aged Condition)

• Density: 8.15 grams per cubic centimeter

• Melting Range: 1310 to 1370 degrees Celsius

• Ultimate Tensile Strength: 1100 to 1510 Megapascals

• Yield Strength (0.2% Offset): 750 to 1115 Megapascals

• Elongation at Break: 10 to 15 percent

• Hardness: 38 to 48 Rockwell C

• Maximum Service Temperature: 850 degrees Celsius (continuous exposure)

Scrap Classification & Re-Melting Guidelines

• VAC Scrap Grade: Vacuum Induction Melting (VIM) quality scrap. Suitable for direct charge in high-grade superalloy re-melting operations.

• Form Factor: Prepared blade solids, cropped turbine roots, and clean solid rounds/turnings. Must be free of coatings (thermal barrier coatings, aluminide coatings), slag, scale, and foreign attachments.

• Refining Notes: Contains high levels of reactive elements (titanium and aluminum) along with refractory metals (tungsten, tantalum, and niobium). Requires strict vacuum melt processing to prevent oxidation and inclusions.