Information on nickel-based GH3039 high-temperature alloy
GH3039 is a single-phase austenitic nickel-based superalloy known for its moderate thermal strength, good oxidation resistance (up to 1000°C), and excellent high-temperature environmental performance. It is primarily used in aerospace, petrochemical, and nuclear industries to manufacture components that require long-term stability and strength at temperatures up to 850°C.
What are the properties of nickel-based superalloys?
Nickel-based superalloys possess high strength, excellent corrosion resistance and oxidation resistance at high temperatures, as well as good creep resistance, making them ideal for high-stress, high-temperature applications. Their superior performance stems from the nickel-chromium matrix, and elements such as molybdenum, iron, niobium, and titanium are often added. These elements form a stable crystal structure and precipitate phases that strengthen the alloy.
GH3039 Application: Classification and nomenclature of high-temperature alloys and high-temperature intermetallic compounds.
| Category | Type | Grade | Designations |
|---|---|---|---|
| Grades | Stainless Steels | GH3039 | China - GB , GB/T 14992 (2005) - Classification and designation for superalloys and high temperature intermetallic materials GB/T 14995 (2010) - Hot-rolled superalloy sheets GB/T 14996 (2010) - Cold-Rolled heat-resisting superalloy sheets GB/T 15062 (2008) - Superalloy tube for general application |
Chemical composition(wt.%) of GH3039 grade: GB/T 14992 (2005)
| Elements | Min.(≥) | Max.(≤) | Similar | Remarks |
|---|---|---|---|---|
| C | - | 0.08 | ||
| Cr | 19.0 | 22.0 | ||
| Mo | 1.80 | 2.30 | ||
| Ni | - | Remainder | ||
| Al | 0.35 | 0.75 | ||
| Nb | 0.90 | 1.30 | ||
| Ti | 0.35 | 0.75 | ||
| Fe | - | 3.0 | ||
| Si | - | 0.80 | ||
| Mn | - | 0.40 | ||
| P | - | 0.020 | ||
| S | - | 0.012 |
Mechanical properties of grade GH3039 GB/T 14992 (2005)
| Proof strength Rp0.2 (MPa) |
Tensile strength Rm (MPa) |
Impact energy KV (J) |
Elongation at fracture A (%) |
Reduction in cross section on fracture Z (%) |
As-Heat-Treated Condition | Brinell hardness (HBW) |
|---|---|---|---|---|---|---|
| 855 (≥) | 999 (≥) | 42 | 14 | 34 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 231 |
Physical properties of grade GH3039 GB/T 14992 (2005)
| 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 |
|---|---|---|---|---|---|---|---|
| 857 (≥) | 983 (≥) | 34 | 24 | 32 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 134 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 192 | 885 | 631 |
GH3039 - Form of Supply
| Product type | Products | Dimension | Processes | Deliver Status |
|---|---|---|---|---|
| Plates / Sheets | Plates / Sheets | 0.08-200mm(T)*W*L | Forging, hot rolling and cold rolling | Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting |
| Steel Bar | Round Bar, Flat Bar, Square Bar | Φ8-1200mm*L | Forging, hot rolling and cold rolling, Cast | Black, Rough Turning, Shot Blasting, |
| Coil / Strip | Steel Coil /Steel Strip | 0.03-16.0x1200mm | Cold-Rolled & Hot-Rolled | Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting |
| Pipes / Tubes | Seamless Pipes/Tubes, Welded Pipes/Tubes | OD:6-219mm x WT:0.5-20.0mm | Hot extrusion, Cold Drawn, Welded | Annealed, Solution and Aging, Q+T, ACID-WASHED |
Why Choose Gnee Nickel Alloys (Supplier Example)?
✅ Large stock of GH3039 high-temperature alloy tubes/bars/plates/coils, fast shipping.
✅ Factory direct sales, highly competitive prices, excellent value for money.
✅ Comprehensive quality assurance: Material Testing Certificate (MTC), chemical composition certificate, and mechanical property certificate.
✅ Value-added services: slitting, cutting, polishing, surface treatment.
✅ Worldwide shipping, secure and reliable packaging, and provision of export-required documents.
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.
