For CNC laser processing workshops and aerospace manufacturers, sourcing GH3030 and GH3039 hot-rolled steel sheets is a high-risk investment. The biggest hidden cost in the industry is material warping.
Pain Points:
Laser/Waterjet Head Collision: Residual stress in conventional hot-rolled steel sheets can cause bending. On automated worktables, this can lead to costly laser head collisions, nozzle damage, and workpiece scrap.
Material Waste: Sourcing standard-sized steel sheets for small, complex parts results in high scrap rates and wasted procurement budgets.
Dimensional Deviations: Inconsistent flatness can cause "springback" during cold forming, failing to meet stringent aerospace tolerance requirements.
At Gnee Alloy, we eliminate these risks. As a dedicated Tier-1 manufacturer, we offer aerospace-grade steel sheets with guaranteed precision flatness and deliver ready-to-use blanks to your assembly line.
Click to get a GH3030 product quote
GH3030/GH3039 hot-rolled high-temperature alloy sheets
GH3030/GH3039 hot-rolled high-temperature alloy sheets
GH3030 and GH3039 are solid solution strengthened nickel-chromium superalloys with excellent high-temperature performance, oxidation resistance, and thermal fatigue resistance. These grades of hot-rolled steel sheets are mainly used in equipment applications in industries with extremely high temperature requirements, such as aerospace, petrochemicals, and energy.
What is GH3030 material?
GH3030 is a high-temperature nickel-based alloy, renowned for its excellent oxidation resistance, good thermal stability, and high-strength mechanical properties at high temperatures.
1. GH3030 and GH3039 Plate Material Overview
| Parameter | GH3030 | GH3039 |
|---|---|---|
| Material Type | Wrought Nickel-based Superalloy | Wrought Nickel-based Superalloy |
| Strengthening Mechanism | Solid-solution strengthening (Cr + trace Ti) | Solid-solution + precipitation strengthening (Mo + Nb + Al + Ti) |
| Product Forms | Plate, strip | Plate, strip |
| Typical Applications | Combustion chambers, furnace components, heat exchangers | Combustion chambers, afterburners, transition ducts, flame holders |
| Maximum Service Temperature (Load-Bearing) | ~800°C | ~850 – 900°C |
| Maximum Service Temperature (Oxidation) | ~1000°C | ~1000°C |
2. Comparison of chemical composition of GH3030 and GH3039 Sheet (wt%)
| Element | GH3030 | GH3039 | Key Difference |
|---|---|---|---|
| Nickel (Ni) | Balance (≥ 75.0) | Balance (≥ 65.0) | GH3030 has higher Ni |
| Chromium (Cr) | 19.0 – 22.0 | 19.0 – 22.0 | Identical |
| Iron (Fe) | ≤ 1.5 | ≤ 3.0 | GH3039 allows more Fe |
| Molybdenum (Mo) | – | 1.80 – 2.30 | GH3039 contains Mo |
| Niobium (Nb) | – | 0.90 – 1.30 | GH3039 contains Nb |
| Titanium (Ti) | 0.15 – 0.35 | 0.35 – 0.75 | GH3039 has higher Ti |
| Aluminum (Al) | ≤ 0.15 | 0.35 – 0.75 | GH3039 contains Al |
| Carbon (C) | ≤ 0.12 | ≤ 0.08 | GH3039 has lower C |
| Manganese (Mn) | ≤ 0.70 | ≤ 0.40 | GH3030 higher |
| Silicon (Si) | ≤ 0.80 | ≤ 0.80 | Same |
| Phosphorus (P) | ≤ 0.030 | ≤ 0.020 | GH3039 stricter |
| Sulfur (S) | ≤ 0.020 | ≤ 0.012 | GH3039 stricter |
| Copper (Cu) | ≤ 0.20 | ≤ 0.20 | Same |
| Cerium (Ce) | – | Allowed (trace) | GH3039 may contain Ce |
3.Comparison of room temperature mechanical properties of GH3030 and GH3039 Sheet
| Property | GH3030 (Annealed) | GH3039 (Solution Treated) | Advantage |
|---|---|---|---|
| Tensile Strength, Ultimate (MPa) | ≥ 685 (99 ksi) | ≥ 735 (107 ksi) | GH3039 (~7% higher) |
| Tensile Strength, Yield (MPa) | ≥ 295 (43 ksi) | Not specified* | GH3030 has clear yield point |
| Elongation (%) | ≥ 30 | ≥ 40 | GH3039 |
| Modulus of Elasticity (GPa) | ~210 | ~196 | GH3030 stiffer |
| Density (g/cm³) | 8.4 | 8.3 | GH3039 slightly lighter |
Click to download the GH3030 alloy PDF file now
4. GH3030 and GH3039 sheet dimensions and specifications
| Parameter | GH3030 Plate | GH3039 Plate |
|---|---|---|
| Thickness Range | 0.5 – 50 mm | 0.5 – 10 mm (typical) |
| Width Range | 500 – 2500 mm | 500 – 1200 mm |
| Length Range | 1000 – 8000 mm | 1000 – 6000 mm |
| Thickness Tolerance | ±5% – ±10% | ±5% – ±10% |
| Flatness | ≤ 3 mm/m | ≤ 3 mm/m |
| Surface Finish | AP, BA, CR, Polished | AP, BA, CR, Polished |
Common Plate Thicknesses
| Thickness (mm) | Thickness (in) | GH3030 Application | GH3039 Application |
|---|---|---|---|
| 0.5 – 1.0 | 0.020 – 0.040 | Heat shields, thin liners | Heat shields, liners |
| 1.0 – 2.0 | 0.040 – 0.080 | Ducting, liners | Ducting, liners |
| 2.0 – 4.0 | 0.080 – 0.160 | Engine casings, structural panels | Combustor liners, casings |
| 4.0 – 10.0 | 0.160 – 0.400 | Heavy structural components | Transition ducts, supports |
| 10.0 – 50.0 | 0.400 – 2.000 | Thick plate applications | Not typical |
Contact us to customize GH3030 products to fit your project dimensions
5. GH3030 alloy hot-rolled plate production process
6. GH3030 alloy hot-rolled plate cutting demonstration
7. Inspection of GH3030 alloy hot-rolled plate products
Why Choose Gnee as Your Nickel-Based Alloy Supplier
✅️Direct Factory Price: Eliminate middleman markups and secure original mill rates.
✅️Aerospace Compliance: Materials meet all requirements for AMS 5596 Equivalent, GB/T 14992, and ASTM standards.
✅️Massive Stock: Large inventory of standard thicknesses ready for Fast Global Shipping to USA, Europe, and Asia.
✅️Industrial Durability: Every sheet is verified for grain size (Level 8 or finer) to maximize Thermal Fatigue life.
Gnee Alloy GH3030 Certificate
📦 Packaging and Shipping
All Nickel Based Alloy products are packaged using the following methods:
Wooden pallets or crates
Moisture-proof packaging
Labels with furnace number, standard, and size labels
Shipped worldwide by sea, air, or express
Gnee Alloy GH3030 Product Packing
⚒️Gnee Alloy Production Line Equipment and Product Testing
Don't pay for unused materials. Our custom machining center uses high-precision blanking processes to provide near-net-shape parts:
✅️Laser and waterjet blanking: We can provide discs, rings, and complex combustion canister shapes based on your CAD drawings.
✅️Protective film: Cold-rolled bright sheets are coated with a double-sided PVC/PE protective film to ensure a smooth, scratch-free surface.
✅️Full traceability: Each billet is marked with a furnace number and comes with a complete EN 10204 3.1 Material Testing Certificate (MTC).
Contact us for the latest export price quote for GH3030 Alloy
FAQ
Q1: Can GH3030 plates handle 1000°C intermittent spikes?
A: For short bursts, yes, in terms of oxidation. However, the mechanical "stiffness" drops rapidly. For structural stability at 950°C+, we recommend upgrading to GH3039 or GH3044.
Q2: Is your GH3030 interchangeable with Nimonic 75 on my blueprint?
A: Absolutely. GH3030 is the equivalent designation of Nimonic 75 / UNS N06075. It is interchangeable worldwide and meets all aerospace certification requirements.
Q3: Does the "Precision Flatness" increase the price per kg?
A: While there is a specialized processing step involved, our Direct Factory Pricing makes it more economical than buying standard warped plates from traders and wasting time on rework.
Q4: Do you offer bulk discounts for petrochemical furnace overhauls?
A: Yes. We support large-scale energy infrastructure projects with tiered Wholesale Pricing and dedicated inventory reserves.
