Are you struggling with material cracking during deep drawing? Or is the soaring price of Inconel 625 (UNS N06625) straining your project budget? In high-performance metallurgy, "stronger" isn't always "better."
One of the biggest pain points for design engineers is over-design: "I need high strength, but my manufacturing team can't produce parts without failures." If your application requires excellent oxidation resistance up to 800°C and demanding cold forming properties, then Inconel 625 may be over-designed. As high-temperature alloy experts, Gnee Steel offers expert insights to help you determine when GH3030 is the smarter, more cost-effective solution.
Comparing the prices of the GH3030 and Inconel 625
Performance Comparison of GH3030 Alloy Sheet and Inconel 625 Sheet
Performance Comparison of GH3030 Alloy Sheet and Inconel 625 Sheet
A performance comparison of GH3030 and Inconel 625 plates shows that while both are high-performance nickel-based alloys designed for high-temperature applications, Inconel 625 plates generally offer superior corrosion resistance and higher mechanical strength at extreme temperatures, while GH3030 plates are an excellent and more cost-effective oxidation-resistant option specifically designed for aerospace combustion chambers and hot-end components.
What are the components of GH3030?
GH3030 is a solid solution strengthened superalloy, primarily composed of nickel (Ni) and chromium (Cr), typically with 80% Ni and 20% Cr. This simple yet efficient alloy system provides excellent mechanical and chemical stability even under harsh conditions.
1.Comparison of chemical composition between GH3030 and Inconel 625
| Element | GH3030 (Clean Matrix) | Inconel 625 (Strengthened Matrix) | Impact on Your Project |
| Nickel (Ni) | Balance (~80.0%) | 58.0% Min | 625 is more expensive due to Mo/Nb |
| Chromium (Cr) | 19.0 - 22.0% | 20.0 - 23.0% | Both have elite oxidation resistance |
| Molybdenum (Mo) | - | 8.0 - 10.0% | 625 is harder to machine/form |
| Niobium (Nb) | - | 3.15 - 4.15% | 625 has higher fatigue limit |
| Iron (Fe) | ≤ 1.5% | ≤ 5.0% | GH3030 has higher purity |
2.Comparison of mechanical properties (solution treatment) between GH3030 and Inconel 625
| Property | GH3030 Plate | Inconel 625 Plate |
| Tensile Strength (σbσb) | ≥ 735 MPa | ≥ 830 MPa |
| Yield Strength (σ0.2σ0.2) | ≥ 245 MPa | ≥ 415 MPa |
| Elongation (δ5δ5) | ≥ 35% (Exceptional) | ≥ 30% |
| Fabrication Difficulty | Low (Easy to Stamp/Draw) | High (Prone to spring-back) |
| Typical Application | Aerospace Liners / Furnaces | Marine / Exhaust / Chemical |
Click to download the GH3030 alloy PDF file now
3. Environmental Comparison of GH3030 and Inconel 625
GH3030 Alloy Plate
GH3030 (80Ni-20Cr) is a low-alloy, high-purity alloy. Because it does not contain heavy refractory elements such as molybdenum or niobium, it possesses excellent plasticity. It is the industry standard for aerospace combustion chamber liners, which require complex stamping and multi-stage deep drawing processes.
Inconel 625 Alloy Plate
Adopting high-performance integrated joints,the CRA series can increase the tempo by 25%,and the productivity can reach a new peak;the vibration suppression algorithm is upgraded to achieve a good anti-shaking effect;the full-parameter DH compensation algorithm and TrueMotion algorithm are supported,and the absolute positioning accuracy is 0.2 ~ 0.4 mm under the change of attitude movement,and the curved motion is precise and stable.
4. How to choose between GH3030 and Inconel 625 alloy plates?
If you need to manufacture parts with complex structures, thin walls (0.5-4.0mm thick), and require high-strength forming, choose GH3030. This will save you 30-50% on material costs and significantly reduce scrap rates.
If your application involves high-cycle fatigue, high mechanical loads at 900°C, or strong acid corrosion (e.g., marine exhaust or offshore oil and gas), choose Inconel 625.
Contact our professionals to recommend alloys suitable for your project
5. Why Choose Gnee Steel?
As your direct export partner, Gnee Steel provides cost-effective solutions for engineering projects worldwide:
VIM + ESR Precision Machining: Our GH3030 sheet metal undergoes a double refining process to ensure a uniform matrix and prevent cracking during complex forming processes.
Custom Sizes and Inventory: We maintain a large inventory of standard sizes and offer precision cutting services for discs, rings, and other custom shapes.
Superalloy Expert Support: Our team provides expert advice on heat treatment and welding parameters to ensure the success of your GH3030 projects.
Gnee Steel GH3030 certificate
Contact us now to get the latest export price for GH3030 in 2026
FAQ
Q1: Is Inconel 625 "over-specification" for a simple 800°C furnace liner?
A: In 90% of cases, yes. Unless there is a high structural load or corrosive gas, GH3030 provides the same oxidation barrier at a fraction of the cost. Switching to GH3030 is a proven Material Upgrade for budget-conscious projects.
Q2: Which alloy is easier to weld for aerospace MRO?
A: Both have Excellent Weldability. However, GH3030 is more ductile in the heat-affected zone (HAZ), making it slightly more forgiving for manual repair welding compared to Inconel 625.
Q3: Can I get GH3030 in "Bright Annealed" (BA) finish?
A: Absolutely. We offer BA finishes for cold-rolled sheets to ensure a mirror-like, oxide-free surface for your high-performance aerospace liners.
Q4: Do you offer Direct Export to the EU and USA?
A: Yes. We specialize in Direct Export, providing full Material Test Certificates (EN 10204 3.1) and handled logistics to ensure your Supply Chain remains seamless.
