GH3128 High-Temperature Oxidation-Resistant Round Bars For Aerospace Applications
GH3128 High-Temperature Oxidation-Resistant Round Bars For Aerospace Applications suppliers
GH3128 High-Temperature Oxidation-Resistant Round Bars For Aerospace Applications factory
GH3128 High-Temperature Oxidation-Resistant Round Bars For Aerospace Applications best
GH3128 High-Temperature Oxidation-Resistant Round Bars For Aerospace Applications high quality
GH3128 High-Temperature Oxidation-Resistant Round Bars For Aerospace Applications price
GH3128 High-Temperature Oxidation-Resistant Round Bars For Aerospace Applications best
GH3128 High-Temperature Oxidation-Resistant Round Bars For Aerospace Applications best
GH3128 High-Temperature Oxidation-Resistant Round Bars For Aerospace Applications
Grade: GH3128
Length: Customized
Diameter: 4.00 mm to 400 mm
As a leading supplier and manufacturer in China, GNEE Steel provides cost-effective nickel-based alloy products.
- Send E-mail: ss@gneesteel.com
- Tel: +8615824687445
GH3128 High-Temperature Bars for Aerospace Applications description
GNEE GH3128 High-Temperature Oxidation-Resistant Round Rod for Aerospace Applications
GH3128 is a nickel-based superalloy widely used in the aerospace industry due to its high-temperature strength, excellent oxidation resistance, and creep resistance up to 950℃. It is used to manufacture components such as aircraft engine flame tubes, combustion chambers, and afterburners. Its high performance stems from its unique composition, including nickel, chromium, and solid solution strengthening elements such as molybdenum and tungsten, with the addition of additives such as boron, cerium, and zirconium to strengthen grain boundaries.
GH3128 high-temperature alloy round bars are a high-performance nickel-chromium alloy designed for critical aerospace and industrial applications. GH3128 can operate in extreme high-temperature and oxidizing environments, exhibiting excellent oxidation resistance (up to 1100°C), superior mechanical strength, and long-term stability. This alloy meets AMS 5537 standards and is ideal for gas turbines, jet engines, combustion chambers, high-temperature structural components, and nuclear power systems.
Available Sizes & Tolerances
We supply GH3128 round bars in various diameters and custom cut lengths:
| Diameter Range | Length | Tolerance | Surface Finish |
|---|---|---|---|
| 10 mm – 200 mm | 1000 mm – 6000 mm | H9–H11 or as required | Peeled, Turned, Ground, Polished |
Specification Of GH3128 High-Temperature Round Bars for Aerospace Applications
| Category | Details | |||
|---|---|---|---|---|
| Introduction | High-temperature alloy (GH3128), American grade (ASTM standard), currently has no corresponding grade. It is a solid bath strengthened nickel-based alloy with good overall performance, long creep life, high plasticity, high creep strength, and good oxidation resistance, as well as stamping and welding properties. Its overall performance is superior to similar nickel-based solid solution alloys such as GH3044 and GH3536. | |||
| Chemical Composition (%) | Element | Min | Max | |
| Nickel (Ni) | Balance | Balance | ||
| Chromium (Cr) | 19.00 | 22.00 | ||
| Iron (Fe) | - | 2.00 | ||
| Molybdenum (Mo) | 7.50 | 9.00 | ||
| Carbon (C) | - | 0.05 | ||
| Boron (B) | - | 0.01 | ||
| Aluminum (Al) | 0.40 | 0.80 | ||
| Manganese (Mn) | - | 0.50 | ||
| Sulfur (S) | - | 0.013 | ||
| Silicon (Si) | - | 0.80 | ||
| Titanium (Ti) | 0.40 | 0.80 | ||
| Phosphorus (P) | - | 0.013 | ||
| Tungsten (W) | 7.50 | 9.00 | ||
| Physical Properties | Density: 8.81 g/cm³ | |||
| Melting Point: 1364–1424°C | ||||
| Applications | Combustion chamber flame tubes of aero-engines, afterburner combustion chamber casings, adjustable flaps, structural components of gas turbine combustion chambers, combustion chamber components of turbo engines, afterburner components. |
GH3128 High-Temperature Oxidation-Resistant Round Bars for Aerospace Applications Specification
Chemical Composition of GH3128 Bars
| Element | Typical Content (%) |
|---|---|
| Nickel (Ni) | 58.0 – 63.0 |
| Chromium (Cr) | 20.0 – 23.0 |
| Molybdenum (Mo) | 4.0 – 6.0 |
| Tungsten (W) | 2.0 – 3.0 |
| Iron (Fe) | ≤ 3.0 |
| Cobalt (Co) | ≤ 2.0 |
| Carbon (C) | ≤ 0.10 |
| Manganese (Mn) | ≤ 0.50 |
| Silicon (Si) | ≤ 0.50 |
GH3128 Bars Mechanical Properties
| Property | Value | Condition |
|---|---|---|
| Tensile Strength | ≥ 830 MPa | Room Temperature |
| Yield Strength | ≥ 450 MPa | Room Temperature |
| Elongation | ≥ 20% | Room Temperature |
| Hardness | 220 – 260 HB | Annealed |
| Service Temperature | ≤ 1100°C | Continuous Operation |
Physical properties of grade GH3128 Bars
| Property | Density kg/dm3 |
Temperature T °C/F |
Specific heat J / kgK |
Thermal conductivity W/mK |
Electric resistance µΩ·cm |
Modulus of elasticity kN/mm2 |
Expansion rate |
|---|---|---|---|---|---|---|---|
| 648 (≥) | 581 (≥) | 43 | 11 | 31 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 422 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 223 | 793 | 716 |
Applications Of GH3128 High-Temperature Round Bars for Aerospace Applications
Due to its excellent high-temperature stability and strength, GH3128 round bars are widely used in:
Aerospace: Jet engine turbine disks, nozzle guide vanes, afterburner components
Power generation: Heat exchangers, furnace components, turbine blades
Nuclear energy: Reactor structural components, containment components
Metallurgy: Furnace fixtures, radiant tubes, high-temperature machining tools
GH3128 Oxidation-Resistant Round Bars for Aerospace Applications Surface Treatments
Gnee Steel provides four surface treatments for GH3128 High-Temperature Oxidation-Resistant Round Bars for Aerospace Applications: pickling, mirror polishing, polishing, and sandblasting.
GH3128 High-Temperature Oxidation-Resistant Round Bars production process
Gnee Steel provides the following heat treatments for GH3128 High-Temperature Oxidation-Resistant Round Bars for Aerospace Applications: annealing, solution + aging. In addition, Gnee Steel also provides hot working and cold working, which are hot rolling and cold drawing.
GH3128 High-Temperature Oxidation-Resistant Bars for Aerospace Applications Packaging
In order to better ensure the safety of your goods, we will provide professional, environmentally friendly, convenient and efficient packaging services.
About Gnee Steel
Gnee Steel specializes in the production and sale of various nickel-based alloys, including Nickel 201, Nickel 202, Hastelloy C-276, Hastelloy C-22, Hastelloy B, Hastelloy C-4, Inconel Alloy 600, Inconel 625, Inconel 718, Inconel X-750, Incoloy Alloy 800, Incoloy 800H/HT, Incoloy 825, Monel Alloy 400, Monel K500, and high-temperature alloys. Gnee Steel's products are widely used in aerospace, chemical, electric power, automotive, and nuclear energy applications. We also offer customized alloy solutions tailored to customer needs. For alloy pricing inquiries or customized alloy solutions, please contact us for a quote at ss@gneesteel.com.
FAQ
Q: Why is GH3128 suitable for the aerospace industry?
A: GH3128 possesses high oxidation resistance, thermal fatigue strength, and creep resistance-all essential properties for aerospace engine components operating at temperatures above 1000°C.
Q: Is GH3128 machinable?
A: Yes, GH3128 round bars can be machined under controlled conditions using carbide cutting tools. For optimal machining results, machining in the annealed state is recommended.
Q: Can this material be welded?
A: GH3128 exhibits good weldability using standard nickel alloy welding processes. Post-weld heat treatment may be required depending on the application conditions.
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