GH4049 Alloy
As a leading supplier and manufacturer in China, GNEE Steel provides cost-effective nickel-based alloy products.
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Nickel GH4049 Superalloy Description

GH4049 is a complex nickel-based precipitation-hardening forged superalloy designed for high-temperature strength (up to approximately 900°C) and stability. Due to its excellent corrosion resistance, stability under stress, and good high-temperature deformation capability, it is primarily used in the aerospace field, such as in critical load-bearing components like gas turbine rotor blades.
GH4049 High-Temperature Alloy specifications
GH4049 Chemical Composition (%)
| Ni | Cr | Co | Mo | W | Al | Ti | Fe | B | Ce |
| Bal | 14.0-16.0 | 14.0-16.0 | 4.5-5.5 | 5.0-6.0 | 3.5-4.5 | 2.0-3.0 | ≤1.5 | ≤0.02 | ≤0.02 |
Physical and mechanical properties of GH4049
| Property | Value |
|---|---|
| Density | 8.32 g/cm³ |
| Melting Point | 1340 – 1390°C |
| Tensile Strength (σb) | ≥ 950 MPa (at room temp) |
| Yield Strength (σ0.2) | ≥ 700 MPa |
Mechanical properties of GH4049 alloy
| Property | Value |
|---|---|
| Tensile Strength | ≥570 MPa |
| Yield Strength | ≥275 MPa |
| Hardness (HB) | ≤363 |
| Elongation | ≥80% |
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Alloys similar to GH4049 alloy
GH4049 alloy Production Forms




1. GH4049 Seamless Tube
| Specification | Details |
|---|---|
| Standards | ASTM B163, GB/T 15062 |
| Dimensions | OD: 6mm – 219mm; WT: 0.5mm – 20mm |
| Applications | High-pressure fuel lines, aero-engine heat exchangers |
2. GH4049 Sheet / Plate
| Specification | Details |
|---|---|
| Standards | ASTM B443, GB/T 14992 |
| Thickness | 0.5mm – 50mm |
| Surface Finish | BA, 2B, No.1, Polished |
| Applications | Combustion chamber liners, structural components |
3. GH4049 Round Bar & Forgings
| Specification | Details |
|---|---|
| Diameter | 5mm – 500mm |
| Surface Finish | Black, Bright, Ground, Peeled |
| Applications | Turbine blades, high-temperature bolts, engine rotors |
GH4049 Main Application Areas
As a leading manufacturer of GH4049 nickel alloy, Gnee Alloy's materials are widely used in:
Aerospace: Turbine blades, compressor discs, and afterburner components.
Power Generation: Industrial gas turbine components.
Petrochemicals: High-temperature reactor internal components.
Automotive: High-performance turbocharger rotors.




Why Choose GH4049 for Your Project?
GH4049 is ideal for extreme environments for the following reasons:
Extremely high heat resistance: Maintains structural integrity at temperatures up to 1000°C.
Excellent oxidation resistance: Minimal oxidation even in high-velocity airflow.
Superior creep strength: Exhibits excellent long-term stability under high stress.
Versatile applications: Ideal for complex shapes such as forged turbine blades.
Contact us to customize GH4049 products to fit your project dimensions
GH4049 Alloy Testing
GH4049 Alloy Testing


Packaging and factory environment of GH4049 alloy
Packaging and factory environment of GH4049 alloy

About Gnee Alloy

About Gnee Alloy
Gnee Alloy is a professional manufacturer of various nickel-based alloys, including Nickel 201, Nickel 202, Hastelloy C-276, Hastelloy C-22, Hastelloy B, Hastelloy C-4, Inconel 600, Inconel 625, Inconel 718, Inconel X-750, Incoloy 800, Incoloy 800H/HT, Incoloy 825, Monel 400, Monel K500, and other high-temperature alloy materials. We specialize in the production and sales of alloy materials. Gnee Steel's products are widely used in aerospace, chemical, power generation, automotive, nuclear energy, and other fields, and we can provide customized alloy material solutions according to customer needs. For alloy material price inquiries or customized alloy material solutions, please feel free to contact us via email at ss@gneemetal.com to obtain a quote.
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FAQ
Q1: What is the equivalent grade of GH4049?
A1: GH4049 is a unique Chinese standard grade. While there isn't an exact 1:1 match in the UNS system, it is comparable in performance to some Nimonic series alloys (like Nimonic 115) used in the UK and Europe.
Q2: Can GH4049 be welded?
A2: Due to its high aluminum and titanium content, GH4049 has limited weldability. It is primarily processed through precision forging and machining. We recommend consulting our technical team for specific welding protocols.
Q3: What is the lead time for GH4049 plates and bars?
A3: We maintain a stock of standard-sized round bars. For custom plates or tubes, the lead time typically ranges from 15 to 30 days depending on the specification.
Q4: Do you provide MTC (Material Test Certificate)?
A4: Yes, all shipments come with an EN 10204 3.1 or 3.2 Certificate, detailing chemical analysis, tensile testing, and ultrasonic inspection results.
Gnee Alloy also supplies custom GH4049 products in various sizes and specifications. Please send us your drawings for a quote!

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