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Technical Specifications
Product Overview
Metallurgical Characteristics
GH3030 is a solid-solution strengthened nickel-chromium-iron superalloy with an austenitic face-centered cubic crystal structure. The alloy exhibits excellent resistance to oxidation, carburization, and chloride-ion stress-corrosion cracking. Its high nickel content provides superior corrosion resistance in both oxidizing and reducing environments.
Heat Treatment Process
MetalZenith employs precise solution annealing at 1010-1150°C followed by rapid cooling to achieve optimal microstructure. The standard heat treatment involves heating to 1095°C ± 15°C, holding for appropriate time based on section thickness, followed by water quenching or rapid air cooling to prevent carbide precipitation.
Manufacturing Process
Our advanced manufacturing process begins with vacuum induction melting (VIM) to ensure chemical purity, followed by electroslag remelting (ESR) for enhanced cleanliness. Hot working is performed between 1200-900°C with careful temperature control to maintain grain structure. Cold working capabilities include drawing, rolling, and forming operations with intermediate annealing as required.
Quality Standards & Testing
All GH3030 products undergo comprehensive testing including chemical analysis by optical emission spectroscopy, mechanical testing per ASTM standards, ultrasonic testing for internal soundness, and microstructural examination. Certificates of compliance include material test certificates (MTC) with full traceability to heat numbers and processing records.
Welding & Fabrication
GH3030 exhibits excellent weldability using GTAW, GMAW, and SMAW processes. Recommended filler metals include ERNiCr-3 and ENiCrFe-3. Post-weld heat treatment at 870-900°C may be applied for stress relief in critical applications. The alloy maintains its corrosion resistance in the as-welded condition.
🧪 Chemical Composition
| Element | Composition (%) |
|---|---|
| Nickel (Ni) | 72.0 - 76.0 |
| Chromium (Cr) | 14.0 - 17.0 |
| Iron (Fe) | 6.0 - 10.0 |
| Carbon (C) | ≤ 0.15 |
| Manganese (Mn) | ≤ 1.0 |
| Silicon (Si) | ≤ 0.5 |
| Sulfur (S) | ≤ 0.015 |
| Phosphorus (P) | ≤ 0.015 |
| Copper (Cu) | ≤ 0.5 |
⚙️ Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength (Room Temperature) | ≥ 550 MPa |
| Yield Strength (0.2% Offset) | ≥ 240 MPa |
| Elongation | ≥ 30% |
| Reduction of Area | ≥ 40% |
| Hardness (HB) | 150 - 220 |
| Impact Energy (Charpy V-notch) | ≥ 80 J |
| Young's Modulus | 214 GPa |
| Fatigue Strength (10&sup7; cycles) | 275 MPa |
| Tensile Strength at 650°C | ≥ 380 MPa |
🔬 Physical Properties
| Property | Value |
|---|---|
| Density | 8.47 g/cm³ |
| Melting Point | 1354 - 1413°C |
| Thermal Conductivity (20°C) | 14.9 W/m·K |
| Thermal Conductivity (650°C) | 25.1 W/m·K |
| Thermal Expansion (20-100°C) | 13.3×10-6/K |
| Thermal Expansion (20-650°C) | 15.8×10-6/K |
| Specific Heat Capacity | 444 J/kg·K |
| Electrical Resistivity (20°C) | 1.03 µΩ·m |
| Magnetic Permeability | 1.006 (Non-magnetic) |
| Curie Temperature | -196°C |
📏 Product Specifications
| Specification | Available Options |
|---|---|
| Product Forms | Round Bar, Square Bar, Flat Bar, Plate, Sheet, Strip, Tube, Pipe, Wire, Forging |
| Round Bar Diameter | 6mm - 300mm |
| Plate Thickness | 3mm - 100mm |
| Sheet Thickness | 0.5mm - 6mm |
| Tube Outer Diameter | 6mm - 219mm |
| Standards | ASTM B166, ASTM B168, ASTM B564, EN 2.4816, JIS NCF600, GB/T 14992 |
| Surface Finish | Hot Rolled, Cold Rolled, Annealed, Pickled, Polished, Machined |
| Tolerance | ±0.1mm to ±0.5mm (depending on form and size) |
| Length | Standard: 3m, 6m, 12m | Custom lengths available |
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Our Advantages in Processing GH3030
Advanced Vacuum Melting Technology
MetalZenith employs cutting-edge vacuum induction melting (VIM) and electroslag remelting (ESR) processes to achieve exceptional chemical purity and homogeneity in GH3030 production, eliminating inclusions and ensuring superior material performance.
Comprehensive Quality Control System
Our integrated quality management system features advanced spectroscopic analysis, mechanical testing laboratories, and non-destructive testing capabilities, ensuring every batch of GH3030 meets or exceeds international aerospace and nuclear industry standards.
Custom Processing & Global Supply
MetalZenith offers complete customization services including precision machining, heat treatment, and surface finishing, backed by our global distribution network ensuring reliable delivery of GH3030 products worldwide with full traceability documentation.
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