GH3039 Plate
A GH3039 plate is a high-performance,nickel-chromium-based solid solution strengthened deformation superalloy sheet or plate.It is primarily engineered for extreme environments that demand high thermal strength,excellent oxidation resistance,and reliable structural stability at elevated temperatures.
Key Performance Properties
- Thermal Resistance:
Maintains moderate heat and thermal strength below 800°C (1472°F). - Oxidation Resistance:
Withstands severe scaling and oxidation up to 1000°C (1832°F). - Structural Stability:
Keeps a highly stable microstructure during long-term exposure to high-temperature service. - Workability:
Offers excellent cold-forming capabilities and outstanding weldability compared to age-hardened superalloys.
Applications of GH3039 Plate
- Combustion liners
- Afterburner components
- Engine casings
- Exhaust nozzles
- Turbine casings
- Heat shields
- Furnace muffles
- Sintering trays
- Pyrolysis vessels
- Теплообменники
We offer GH3039 plates and sheets in thicknesses of 3.0.We offer not only листы нержавеющей стали and sheets but also plates made of Hastelloy,Incoloy,Inconel,Monel,and other alloys.Our products comply with ASTM A240,EN 10204,ISO 9001,PED 2014/68/EU ,CE,and other standards.With over a decade of experience in manufacturing and import/export,we are your best wholesaler in China.
Chemical Composition of GH3039 Plate
The definitive chemical composition table for the GH3039 plate based on the Chinese national standards GB/T 14992 and GB/T 14996,followed by an in-depth breakdown of its material characteristics.
| Ni | Cr | Пн | Nb | Ti | Al | Fe | Si | Mn | C | Cu | п | S |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Остаток средств | 19.0 -22.0 | 1.80 – 2.30 | 0.90 – 1.30 | 0.35 – 0.75 | 0.35 – 0.75 | ≤ 3,0 | ≤ 0,80 | ≤ 0.40 | ≤ 0.08 | ≤ 0.20 | ≤ 0.02 | ≤ 0.012 |
Key Technical Aspects of GH3039 Plate
Solid-Solution Strengthening Mechanism
Unlike age-hardened superalloys that rely on gamma-prime precipitates,GH3039 is a single-phase austenitic alloy.It primarily uses molybdenum and niobium atoms dissolved directly into the Nickel-Chromium matrix.Because these atoms are larger than Ni and Cr,they distort the crystal lattice,blocking dislocation movements and maintaining structural strength up to 800°C without fading over long operational periods.
Excellent Weldability & Cold Forming
Because it lacks aggressive age-hardening elements,GH3039 sheets have an exceptionally low risk of strain-age cracking during fabrication.It handles cold stamping,deep drawing,and rolling seamlessly.It can be welded reliably using Argon Arc Welding (TIG/MIG) or resistance welding,making it perfect for complex,formed aerospace sheet structures.
GH3039 Plate Standards & Equivalent Designations
| GH3039 Alloy | |||||
|---|---|---|---|---|---|
| Стандарт / Система | Эквивалентное обозначение | Форма продукта | GB (Китай) | GJB (Military) | GOST (Russia) |
| Китайский стандарт | GH3039 (GH39) | Plates, Sheets & Strips | GB/T 14996 | GJB 1952A | – |
| Russian / CIS Standard | KhN75MBTYu (ХН75МБТЮ) | Bars & Rods | GB/T 14994 | GJB 2294A | GOST 5632 / EI602 |
| ISO Chemical Name | NiCr21Mo2NbTi | Seamless Pipes & Tubes | GB/T 15062 | GJB 2296A | – |
| UNS System | No Exact Match | Welded Pipes & Tubes | – | GJB 3318A | – |
| Aviation / Aerospace | Aerospace Grade Sheet | Forgings & Rings | GB/T 14993 | GJB 3317A | – |
| UK Designation | Nimonic Alloy Close | ||||
| Generic Trade Name | GH3039, Alloy 3039 | ||||
If you believe that GH3039 plate does not comply with your local laws and regulations or poses any risks,we also offer Inconel 600 plate а также Inconel 601 plate,which we consider to be excellent alternatives to GH3039 plate.Please feel free to contact us at any time for the latest quote!
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Mechanical Properties of GH3039 Plate
The mechanical specification below represents the standard requirements for GH3039 hot-rolled and cold-rolled plates/sheets in the solution-treated delivery condition.
| Температура | Предел прочности | Предел текучести | Удлинение | Твердость | Ударная вязкость |
|---|---|---|---|---|---|
| Room Temp | ≥ 735 MPa | ≥ 295 MPa | ≥ 40% | ≤ 210 HBW | ≥ 150 J/cm2 |
| 700℃ | ≥ 440 MPa | ≥ 175 MPa | ≥ 40% | – | – |
| 800 ℃ | ≥ 245 MPa | – | ≥ 40% | – | – |
| 900℃ | ≥ 120 MPa | – | ≥ 45% | – | – |
High-Temperature Stress-Rupture Properties
The stress-rupture property defines how long the plate can sustain a specific static load at extreme temperatures without cracking:
- At 800℃ under 70 MPa load:Rupture life ≥ 100 hours,Elongation after fracture ≥ 10%
- At 850℃ under 45 MPa load:Rupture life ≥ 30 hours.
Crucial Technical Commentary on GH3039 Plate Performance
Exceptional Ductility Balance
A standout feature of the GH3039 plate is its constant elongation across room temperature up to 900℃.This behavior ensures that components like aerospace combustion liners can undergo sharp thermal expansion and contraction cycles without developing structural micro-cracks or brittle failures.
Deformation and Work Hardening
Because it is a single-phase solid-solution strengthened alloy,cold-rolling or cold-forming a GH3039 plate will significantly spike its room-temperature yield strength and hardness due to work hardening.If heavy cold forming is required during your component manufacturing,interstage solution annealing at 1050℃ – 1090℃ must be introduced to restore its ductile mechanical profile.
High Thermal Fatigue Resistance
Plates are inherently stable under localized thermal shocks.The low thermal expansion rate combined with uniform high-temperature strength makes it much more resistant to buckling and distortion than standard stainless steel grades when operating continuously below 800℃.
Our Advantages in Manufacturing GH3039 Plate
Grain Size Control
Our advanced automated hot-rolling and cold-rolling mills maintain a uniform,fine single-phase austenitic grain structure (typically ASTM Grade 6 to 8).By precisely regulating the final solution-annealing temperature between 1050°C and 1090°C,we completely eliminate coarse grain boundaries.This optimal microstructure maximizes the plate’s thermal fatigue resistance and ensures consistent mechanical performance across the entire surface area.
Cold Forming Ductility
Through strict optimization of the solid-solution strengthening elements—specifically the critical molybdenum and niobium ratios-our plates achieve a stable room-temperature elongation exceeding 40%.This outstanding structural plasticity minimizes directional anisotropy,allowing your fabricators to execute complex deep stamping,spinning,and tight-radius bending without localized thinning,cracking,or the need for excessive interstage annealing.
Ultra Clean Melting
We utilize an advanced dual-process melting route:Vacuum Induction Melting followed by Electroslag Remelting.This rigorous refinement process lowers harmful trace elements like Sulfur (S ≤ 0.005%) and Phosphorus (P ≤ 0.010%) far below standard GB/T 14996 requirements.This extreme chemical cleanliness prevents hot-cracking during structural welding and protects against grain-boundary embrittlement during long-term service at 800°C.
Strict Dimensional Tolerance
Our production lines are equipped with precision online thickness monitoring gauges and multi-roll tension leveling systems to ensure superior flatness and ultra-tight gauge tolerances (within ±0.02mm for thin sheets).Every single GH3039 plate undergoes non-destructive testing,including ultrasonic and eddy-current inspections, guaranteeing zero internal lamination,micro-voids,or surface scale defects.
FAQs About GH3039 Plate
No. GH3039 is a single-phase solid-solution strengthened superalloy.It derives its structural strength from the lattice distortion caused by dissolving molybdenum and niobium atoms directly into the Nickel-Chromium matrix.Because it does not rely on γ’ precipitation hardening,it offers vastly superior microstructural stability during long-term thermal exposure.
GH3039 features excellent weldability compared to age-hardened nickel superalloys.Because it lacks aggressive aluminum and titanium precipitation mechanics,it has a very low susceptibility to strain-age cracking.It can be welded seamlessly using Argon Arc Welding,plasma arc welding,or spot resistance welding.Standard practice utilizes matching chemistry filler wires.
GH3039 plates are supplied in the solution-treated (annealed) condition.The standard factory heat treatment involves heating the plates to 1050°C–1090°C,holding for a duration relative to the plate thickness to completely dissolve secondary phases,and then executing a rapid air cooling or water quench.
The maximum structural operating temperature is 800°C (1472°F).At this temperature,the plate retains a reliable tensile strength of ≥ 245 MPa and resists high-temperature creep.For non-load-bearing components requiring only oxidation scale resistance,it can withstand continuous exposure up to 1000°C (1832°F).
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