GH3039 is a single-phase austenitic solid solution reinforced alloy with moderate hot strength, good thermal fatigue performance below 800℃, and good oxidation resistance below 1000℃. This alloy has a stable microstructure, is suitable for long-term use, and exhibits good cold formability and weldability.

Is 4140 a high-temperature alloy?

Can AISI 4140 engineering steel be used in high-temperature applications? Yes, 4140 steel maintains good strength and toughness at high temperatures.
GH3039 alloy Production Standard
| Alloy | Seamless Pipe and Tube | Welded Pipe and Tube | Plate, Sheet, and Strip | Forging |
|---|---|---|---|---|
| GH3039 | GJB 1952, GJB 3317, GJB 3318 | GJB 2297, GB/T 15062 | GJB 2611, GJB 2612, GJB 3165, GJB 3167 | GJB 3020 |
| GH3039 Oxidation-resistant Alloy Steel | ||||||
| 1. Standard: GB/T14992-2005 | ||||||
| 2. Size: 0.4 ~ 4 * 1000 * 2000 mm | ||||||
| 3. Chemical Composition: | ||||||
| Ni: balance; Cr:19-22; Fe: ≤3.0; Mo:1.8-2.3; Nb:0.9-0.13; C:≤0.08; Mn:≤0.4;Si:≤0.8; S:≤0.012; P:≤0.02; Al:0.35-0.75 ; Ti:0.35-0.75 | ||||||
| Application:Aircraft Engine Burning Room, Heat Shield, Rotational guide vane etc | ||||||
| 4.Mechanical Properties: | ||||||
| Density: 8.30 g/cm3 | ||||||
| Coefficient of Thermal Conductivity (λ/(W/m•°C) ): 13.80 (100°C). | ||||||
| Specific Heat Capacity (J/kg•°C ):544 | ||||||
| Linear Expansibility (a/10-6°C-1 ): 11.50(20~100°C ) | ||||||
| Heat Treatment: Solution Treatment | ||||||
| Tensile Strength( σb/MPa ): ≥ 735 MPa (at 20 °C), | ||||||
| Elongation( σ5 /%): ≥ 40% (at 20 °C), | ||||||
| 5. Production Time: 50~60 days after getting your firm order | ||||||
| 6. Payment Terms:T/T or L/C at sight. |
Physical properties of GH3039
| Alloy | Density (g/cm³) | Melting Range (°C) |
|---|---|---|
| GH3039 | 8.3 | 1374–1420 |
Mechanical properties of GH3039
| Property | Value |
|---|---|
| Tensile Strength | 945 MPa |
| Yield Strength (0.2% Offset) | 685 MPa |
| Elongation | 40% |
Main Applications
Aerospace: Long-term components for aircraft engine combustion chambers and afterburners (below 850°C)
Industry: Suitable for applications requiring high-temperature strength, such as gas turbines and industrial furnaces
Petrochemicals: Used in the petrochemical industry
Nuclear Energy: Used in the nuclear industry
Available Forms
This alloy can be produced in various forms, including plates, bars, wires, tubes, and forgings.
Why Choose Gnee Nickel Alloy (Supplier Example)?
✅ Large stock of GH 3039 stainless steel strip/coil available for fast shipping.
✅ Factory direct sales, highly competitive prices, excellent value for money.
✅ Comprehensive quality assurance: Material Testing Certificate (MTC), Chemical Composition Certificate, and Mechanical Properties Certificate.
✅ Value-added services: Slitting, Cutting, Polishing, Surface Treatment.
✅ Worldwide shipping, secure and reliable packaging, and provision of export documentation.
Email: ss@gneemetal.com
Gnee Steel is a supplier of GH3039 alloy, offering a wide range of products including: seamless pipe (sizes: 4-219 mm; thickness: 0.5-20 mm); welded pipe (sizes: 5.0-1219.2 mm; thickness: 0.5-20 mm); plates (thickness: 0.1 to 100 mm; width: 10-2500 mm); strips; alloy round bars (diameter: 3-800 mm); flat bars (thickness: 2-100 mm; width: 10-500 mm); hexagonal bars (size: 2-100 mm); wire rods; and extruded profiles. We collaborate with steel mills to provide our customers with GH3039 alloy products that meet or exceed numerous leading industry standards, including ASTM, ASME, SAE, AMS, ISO, DIN, EN, and BS standards.
Gnee Steel stocks and sells GH3039, pipes, plates, strips, round bars, flat bars, forged billets, hexagonal steel, wire rods, and extruded profiles. Please feel free to contact us at ss@gneesteel.com for a quote.








