I. Core Identification & Basic Attributes
| Item | Specific Parameters |
| Standard Grades | UNS N06030, DIN W.Nr. 2.4603 (Registered Trademark of Haynes International) |
| Material Density | 8.22 g/cm³ |
| Melting Point Range | 1350-1390℃ |
| Core Positioning | Upgraded version of G-3 alloy, a high-chromium multi-component nickel-based corrosion-resistant alloy developed for harsh oxidizing corrosion environments |
| Key Features | Resistance to strong oxidizing acids, chloride corrosion resistance, stable as-welded performance, wide process adaptability |
II. Key Chemical Composition
| Element | Content Range | Element | Content Range |
| Nickel (Ni) | Balance | Tungsten (W) | 1.5-4.0 |
| Chromium (Cr) | 28.0-31.5 | Copper (Cu) | 1.0-2.4 |
| Iron (Fe) | 13.0-17.0 | Niobium + Titanium (Nb+Ti) | 0.3-1.5 |
| Molybdenum (Mo) | 4.0-6.0 | Carbon (C) | ≤0.03 |
III. Core Performance Advantages
1. Superior Corrosion Resistance
Exceptional performance in strong oxidizing acids (nitric acid, sulfuric acid, phosphoric acid), especially suitable for wet-process phosphoric acid production
High resistance to chloride pitting, crevice corrosion, and stress corrosion cracking (SCC), outperforming conventional stainless steels and general nickel-based alloys
No grain boundary precipitation in as-welded condition; direct application in chemical equipment without post-weld heat treatment.
2. Key Physical Properties
Coefficient of Thermal Expansion: 12.8×10⁻⁶/℃ (20-100℃)
Thermal Conductivity: 10-17 W/m·℃ (gradually increases with temperature)
Elastic Modulus: 202 GPa (room temperature)
Magnetism: Non-magnetic
3. Reliable Mechanical Properties (Room Temperature)
Tensile Strength: ≥586 MPa
Yield Strength: ≥241 MPa (0.2% offset)
Elongation: ≥30%
Characteristics: Excellent toughness and good cold working capacity
4. Process Adaptability
Outstanding weldability with stable heat-affected zone (HAZ)
Compatible with multiple forming processes: hot rolling/cold rolling, forging, machining; custom-shaped components available
IV. Product Forms & Executive Standards
| Product Form | Executive Standards (ASTM/ASME) |
| Plates/Strips/Foil | B582/SB582 |
| Bars/Wires | B581/B574/SB581 |
| Seamless/Welded Tubes | B622 (Seamless), B619/B626 (Welded) |
| Fittings/Flanges | B366/B462/SB366 |
| Forgings | B462/SB462 |
| Fasteners | F467/F468 (Compliant with NACE MR0175) |
V. Typical Application Fields
Fertilizer Industry: Wet-process phosphoric acid evaporators, concentration equipment
Chemical Industry: Pickling equipment, oxidizing acid reactors, mixed acid treatment systems
Environmental Engineering: Flue Gas Desulfurization (FGD) towers, acid gas scrubbers
Nuclear Industry: Nuclear fuel reprocessing, nuclear waste treatment equipment
Petrochemical Industry: Corrosive medium pipelines, heat exchanger tubes
VI. Key Certifications & Comparison
ISO, REACH, PED 2014/68/EU, NACE MR0175
