Forging-Grade Nickel-Based Superalloy Powder

Product Specifications

Technical details and manufacturing context for Forging-Grade Nickel-Based Superalloy Powder

Definition

Forging-grade nickel-based superalloy powder is a specialized raw material produced through gas atomization or plasma rotating electrode processes, yielding spherical particles with controlled size distribution. This powder metallurgy feedstock enables near-net-shape manufacturing of complex aerospace and power generation components via hot isostatic pressing (HIP) and subsequent forging operations. Its uniform microstructure and high purity ensure exceptional mechanical properties at elevated temperatures exceeding 1000°C, making it indispensable for turbine blades, discs, and other critical rotating parts. The powder form allows for precise alloy composition control and minimal material waste compared to traditional ingot metallurgy routes.

This directory entry provides reference data for procurement and verification. The powder is characterized by a median particle diameter (D50) of 50–150 μm, apparent density of 4.5–5.5 g/cm³, tap density of 5.0–6.0 g/cm³, and a flow rate of ≤15 s/50g. Oxygen content is limited to ≤100 ppm, with additional impurity limits for nitrogen (≤50 ppm), sulfur (≤10 ppm), and phosphorus (≤10 ppm). Particle size distribution is narrow, with D10 of 20–40 μm and D90 of 100–200 μm, ensuring uniform properties. Chemical composition for a typical Inconel 718 grade includes nickel (balance), chromium (17–21 wt%), cobalt (0–1 wt%), molybdenum (2.8–3.3 wt%), titanium (0.65–1.15 wt%), aluminum (0.2–0.8 wt%), and carbon (0.02–0.08 wt%). Melting point ranges from 1260–1336°C, and sintering temperature for HIP consolidation is typically 1150–1250°C. Green strength is ≥10 MPa, ensuring handling without cracking.

All values are reference ranges and must be confirmed for the specific product and application. Standards such as ASTM B214, B212, B213, E1409, B527, B637, E1019, and ISO 3995 are listed as verification references, not as certification of compliance. Buyers should verify model-specific values and standards with the legal manufacturer or supplier.

Working Principle

Spherical powder particles are consolidated under high temperature and isostatic pressure to form fully dense preforms, which are then forged to final dimensions and mechanical properties. The powder's spherical morphology and controlled size distribution allow for uniform packing and consistent densification during HIP. The resulting preform has a fine, homogeneous microstructure that retains the alloy's high-temperature strength and creep resistance. Subsequent forging refines the grain structure and aligns it with the component's stress paths, optimizing mechanical performance. The process minimizes material waste and enables complex geometries that are difficult to achieve with conventional ingot metallurgy.

Common Materials

Nickel, Chromium, Cobalt, Molybdenum, Tungsten, Rhenium

Technical Parameters

Parameter	Typical range	Notes & selection driver
Particle Size D50Required	50–150 μm	Median particle diameter in distributionASTM B214
Apparent DensityRequired	4.5–5.5 g/cm³	Bulk density of loose powderASTM B212
Flow RateRequired	≤15 s/50g	Time for 50g powder to flow through Hall funnelASTM B213
Oxygen ContentRequired	≤100 ppm	Maximum allowable oxygen impurity levelASTM E1409
Tap Density	5.0–6.0 g/cm³	Maximum packed density after mechanical tappingASTM B527
Particle Morphology	Spherical sphericity	Degree of spherical particle shape (0-1 scale)ASTM B214
Chemical Composition	Ni: Bal, Cr: 17–21, Co: 0–1, Mo: 2.8–3.3, Ti: 0.65–1.15, Al: 0.2–0.8, C: 0.02–0.08 wt%	Typical for Inconel 718 gradeASTM B637
Melting Point	1260–1336 °C	Range for Ni-based superalloys
Particle Size Distribution	D10: 20–40, D90: 100–200 μm	Narrow distribution ensures uniform propertiesASTM B214
Bulk Density	4.8–5.8 g/cm³	Important for container fillingASTM B212
Green Strength	≥10 MPa	Ensures handling without crackingISO 3995
Sintering Temperature	1150–1250 °C	Typical for HIP consolidation
Impurity Content	N: ≤50, S: ≤10, P: ≤10 ppm	Low impurities prevent embrittlementASTM E1019

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Nickel Matrix Part
Primary metallic base providing high-temperature strength and corrosion resistance

Material: Elemental Nickel
Solid Solution Strengtheners Part
Chromium, cobalt, molybdenum dissolved in matrix to enhance mechanical properties

Material: Chromium, Cobalt, Molybdenum
Precipitation Hardening Elements Part
Aluminum, titanium forming gamma-prime phase for creep resistance

Material: Aluminum, Titanium
Grain Boundary Stabilizers Optional Part
Boron, zirconium, carbon improving grain boundary cohesion

Material: Boron, Zirconium, Carbon

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Forging-Grade Nickel-Based Superalloy Powder.

Manufacturers of Forging-Grade Nickel-Based Superalloy Powder

Manufacturer profiles associated with Forging-Grade Nickel-Based Superalloy Powder.

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Frequently Asked Questions

What is the typical particle size distribution for this powder?

The median particle diameter (D50) is 50–150 μm, with D10 of 20–40 μm and D90 of 100–200 μm, as per ASTM B214. These are reference ranges; actual values depend on the specific grade and application.

What are the maximum allowable impurity levels?

Oxygen content is limited to ≤100 ppm, nitrogen to ≤50 ppm, sulfur to ≤10 ppm, and phosphorus to ≤10 ppm, per ASTM E1409 and E1019. These limits help prevent embrittlement in high-temperature service.

What is the recommended sintering temperature for HIP consolidation?

The typical sintering temperature range is 1150–1250°C. This range is based on common practice for nickel-based superalloys; the exact temperature should be optimized for the specific alloy and component design.

How does this powder compare to traditional ingot metallurgy?

Powder metallurgy allows for precise alloy composition control and minimal material waste, enabling near-net-shape manufacturing. The uniform microstructure from powder consolidation provides consistent mechanical properties, especially at temperatures above 1000°C.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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pressure:	Up to 200 MPa (29,000 psi) for HIP, 100-150 MPa (14,500-21,750 psi) for forging
other spec:	Particle size distribution: 15-150 μm, Flow rate: 0.5-2.0 kg/min for feeding systems, Slurry concentration: 60-70% solids by weight for binder jetting
temperature:	Up to 1200°C (2192°F) continuous, 1300°C (2372°F) peak