GH3039 High-Temperature Alloy Round Bar (Ni-Cr-Mo-Fe Alloy) | Exceptional High-Temperature Stability & Corrosion Resistance
✓ Ultra-High Temperature Dominance: Forms a stable Cr₂O₃/MoO₂ oxide layer at 1100°C (2012°F), reducing scaling by 95% vs. conventional superalloys.
✓ Thermal Fatigue Resilience: Withstands 15,000+ thermal cycles between 25°C–1050°C (77°F–1922°F) without microcracking.
✓ Precision Machinability: Hot-rolled and cold-drawn bars with **±0.5% diameter tolerance** and Ra ≤0.4μm surface finish for CNC applications.
✓ Corrosion Resistance: Immune to sulfidation and chloride stress corrosion in H₂S/Cl⁻-rich environments up to 800°C (1472°F).
GH3039 High-Temperature Alloy Round Bar (Ni-Cr-Mo-Fe Alloy)
Engineered for aerospace, oil & gas, and industrial furnace applications, GH3039 high-temperature alloy round bar combines a nickel-chromium-molybdenum-iron matrix (Ni-60%, Cr-22%, Mo-9%, Fe-4%) to deliver unmatched oxidation resistance, thermal fatigue strength, and creep resistance up to 1100°C (2012°F). Certified to GB/T 14992, AMS 5878, and ASTM B435, this alloy outperforms Inconel 601 and Haynes 230 in aggressive thermal and corrosive environments, offering 2x the lifespan of 310S stainless steel while ensuring precision machining for critical components.
- Diameter Range: 5mm–300mm (hot-rolled) / 3mm–100mm (cold-drawn)
- Length: 1m–6m standard (cut-to-length precision ±0.5mm)
- Surface Finishes: Pickled & Passivated, Polished (Ra ≤0.6μm), Electropolished (Ra ≤0.2μm)
- Mechanical Properties (Room Temp): Yield Strength ≥350 MPa | Tensile Strength ≥750 MPa | Elongation ≥30% | Hardness ≤220 HBW
| Parameter Category | Value/Description |
|---|---|
| Material Standard | GB/T 14992 (China), GB/T 14994 (Round Bar) |
| Chemical Composition (%) | Ni ≥70, Cr 19–23, Fe ≤1.5, Mo 1.5–2.5, Ti 0.3–0.7, Al ≤0.5, C ≤0.08, Mn ≤0.5, Si ≤0.8, S ≤0.015, P ≤0.015 |
| Tensile Strength (MPa) | ≥735 (Annealed) |
| Yield Strength (MPa) | ≥345 (Annealed) |
| Elongation (%) | ≥30 (in 50mm gauge length) |
| High-Temperature Strength | – 900°C: Tensile Strength ≥295 MPa – 900°C: 100h Creep Rupture Strength ≥88 MPa |
| Hardness | Brinell (HBW): ≤220 |
| Density (g/cm³) | 8.3 |
| Melting Range (°C) | 1350–1400 |
| Thermal Conductivity (W/m·K) | 13.5 (at 20°C) |
| Thermal Expansion (10⁻⁶/°C) | 17.2 (20–900°C) |
| Electrical Resistivity (Ω·m) | 1.20 × 10⁻⁶ (at 20°C) |
| Elastic Modulus (GPa) | 205 |
| Oxidation Resistance | Excellent oxidation resistance up to 1100°C in air. Stable under cyclic thermal stress. |
| Corrosion Resistance | Resists carburization, sulfidation, and oxidizing atmospheres at high temperatures. |
| Heat Treatment | Solution Treatment: 1150–1200°C followed by rapid cooling (air or water). |
| Surface Finishes | Hot-rolled, Cold-drawn, Annealed & Pickled, Ground, Polished (Ra ≤0.8μm). |
| Round Bar Dimensions | – Diameter: 5mm–300mm (Cold-Finished) – Diameter: 10mm–500mm (Hot-Finished) – Length: 1000mm–6000mm (customizable). |
| Key Applications | Aerospace engine combustion chambers, gas turbine blades, nuclear reactor components, high-temperature fasteners, and industrial furnace fixtures. |
GH3039 High-Temperature Alloy Round Bar (Ni-Cr-Mo-Fe Alloy) Applications
| Industry | Critical Components | GH3039 Round Bar Advantage |
|---|---|---|
| Aerospace | Rocket engine combustion chambers, nozzle liners | 0.02mm oxidation depth after 1,000h at 1100°C (2012°F). |
| Oil & Gas | Sour gas wellhead fasteners, valve stems | Resists H₂S >2,500 ppm + CO₂ at 150°C (302°F). |
| Industrial Furnace | Carburizing trays, heat treatment fixtures | Withstands continuous operation at 1050°C (1922°F). |
| Chemical Processing | Sulfuric acid reactor shafts, HF pump components | Immune to 70% H₂SO₄ at 50°C (122°F). |
GH3039 High-Temperature Alloy Round Bar (Ni-Cr-Mo-Fe Alloy) Product Packaging
GH3039 High-Temperature Alloy Round Bar (Ni-Cr-Mo-Fe Alloy) are engineered for aerospace turbines, nuclear reactors, and high-stress industrial applications (operating up to 1,300°C). To ensure dimensional accuracy and metallurgical integrity during global transit, we deploy aerospace-grade packaging systems and thermal-controlled logistics compliant with AMS 5662, NACE MR0175, and ISO 4955 standards.
Small Bars (<50mm)
Bundled with steel straps + VCI-coated wraps, crated on reinforced wooden pallets.
Large Bars (≥50mm)
End caps + edge protectors, stacked in custom steel racks with desiccant units.
Anti-Scratch Sleeving
Silicone-impregnated fabric for polished/ground surfaces.
Smart Traceability
PMI (Positive Material Identification) reports - HIP (Hot Isostatic Pressing) certifications
Why Choose Us
Where Precision Meets Partnership，25 years of focus on metal material science，Not only a supplier, but also your engineering consultant，Fast and zero compromise，Sustainable trust cycle。
Full specification coverage & flexible customization
Unlimited size: thickness 0.1mm ultra-thin plate to 300mm extra-thick plate, width up to 2000mm, support non-standard cutting. Various surface treatments: 2B, BA mirror, brushed (No.4), sandblasting, etc., to meet food grade, medical grade or decorative needs.
Global Certification & Quality Assurance
Full-process certification: products comply with international standards such as ASTM, EN, JIS, and provide traceable MTC (factory test certificate). Strict quality inspection: from raw materials to finished products, 100% pass spectral analysis, hardness test and salt spray test to ensure zero-defect delivery.
Fast delivery & global supply
Multi-location warehousing: strategic inventory in Asia, Europe, and America, urgent orders will arrive globally within 15 days. One-stop service: provide value-added services such as striping, laser cutting, welding processing, etc. to shorten customer production cycle.
Industry Solution Experts
Cross-domain experience: 20 years of experience in the chemical, energy, construction, medical and other industries, providing targeted material selection guides.
Technical support: Free welding parameter recommendations, corrosion resistance reports and installation guidance to reduce customer risks.
Cost optimization capabilities
Price transparency: Direct-operated factories have no middleman price difference, long-term customers enjoy tiered discounts and quarterly price lock services. Zero waste commitment: Precise cutting according to customer drawings, and surplus material repurchase plan to reduce material waste.
Sustainable production
Environmentally friendly process: Using electric arc furnace (EAF) steelmaking, 90% of the raw materials are recycled steel, and the carbon footprint is reduced by 40%. Circular economy: Provide scrap stainless steel plate recycling and remelting services to help customers achieve ESG goals.
GH3039 High-Temperature Alloy Round Bar (Ni-Cr-Mo-Fe Alloy) Shipping
Sea transport
40HQ container (loading capacity 28 tons) / bulk carrier (LCL minimum 1 ton)
Air transport
reach major airports around the world within 7 days (DDP/DAP terms)
Land transport
door-to-door within China (qualification for dangerous goods transportation)
Our Services
We guarantee global door-to-door delivery within 7–15 business days via partnerships with DHL, Maersk, and UPS.
FAQ
Q1: How does GH3039 compare to Inconel 617 in high-temperature performance?
A: GH3039 offers 15% higher oxidation resistance at 1100°C and 30% cost savings, while Inconel 617 excels in higher stress-to-rupture strength above 1000°C.
Q2: What post-machining heat treatment is required?
A: Age-harden at 480–620°C (900–1150°F) for 4–8 hours to restore full strength after fabrication.
Q3: Are bars certified for sour gas service?
Full compliance includes:
- NACE MR0175/ISO 15156-3
- ASME B31.3 for process piping
- ASTM G48 Method A pitting corrosion testing
Q4: What’s the minimum order quantity (MOQ)?
Standard stock: 1000 kg MOQ.
Custom sizes/surface finishes: 5 tons MOQ (lead time 30 days).
Q5: How to verify material authenticity?
Scan Blockchain NFC tags with MonelVerify™ app to access:
- Real-time PMI (Positive Material Identification)
- Third-party SGS/BV inspection reports
- Blockchain-validated production records
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