In the most demanding industrial environments where corrosion threatens operational integrity and equipment longevity, material selection becomes paramount. As a leading manufacturer and supplier based in China, ZYTC Alloy delivers superior-grade, cost-effective nickel alloy solutions. Our Hastelloy® G (UNS N06007) represents a premium nickel-chromium-iron-molybdenum alloy specifically engineered to withstand the most aggressive chemical environments encountered in modern industry. Product AvailabilityZYTC Alloy provides Alloy G in various forms to meet diverse application needs: - Plates and Sheets
- Bars and Billets
- Pipes and Tubes
- Welding Products and Filler Metals
- Custom Fabrications and Finished Components
Product Specifications & PropertiesAlloy G is a nickel-chromium-iron-molybdenum alloy with additions of copper and niobium. The controlled chemistry provides resistance to a wide range of corrosives while maintaining good fabricability. Niobium addition helps stabilize the alloy against sensitization during welding. Chemical Composition (%, range)| Element | Content |
|---|
| Nickel, Ni | Remainder | | Chromium, Cr | 21.0-23.5 | | Iron, Fe | 18.0-21.0 | | Molybdenum, Mo | 5.5-7.5 | | Niobium, Nb | 1.75-2.5 | | Copper, Cu | 1.5-2.5 | | Manganese, Mn | 1.0-2.0 | | Carbon, C | 0.05 max |
Mechanical Properties (Typical)| Property | Metric | Imperial |
|---|
| Tensile Strength | 760 MPa (min) | 110,000 psi (min) | | Yield Strength (0.2% offset) | 320-400 MPa | 46,000-58,000 psi | | Elastic Modulus | 192 GPa | 27,800 ksi | | Elongation | 20% (min) | 20% (min) | | Hardness, Rockwell C | 31 max | 31 max |
Operating Conditions & Selection GuidelinesIdeal Media: Resists sulfuric and phosphoric acids in various concentrations. Suitable for flue gas desulfurization environments, mixed acid streams, and applications requiring resistance to both oxidizing and reducing conditions. Copper addition enhances resistance to sulfuric acid Critical Advantage: Niobium stabilization prevents intergranular corrosion in welded areas. Good resistance to chloride-induced stress corrosion cracking and pitting Temperature Range: Annealed at 1177°C (2150°F) with rapid quench. Forging performed at 927-1149°C (1700-2100°F). Service temperatures vary by environment Common Applications: Wet flue gas desulfurization scrubbers, sulfuric and phosphoric acid processing equipment, chemical reactors, heat exchangers, waste treatment systems, and components exposed to aggressive industrial byproducts
Fabrication & Material ComparisonForming Characteristics: Suitable for both hot and cold forming operations using conventional methods. Good ductility allows for complex shapes Welding Considerations: Weldable by GTAW/TIG, SMAW, and submerged arc methods. Niobium stabilization reduces risk of sensitization in heat-affected zones. Good intergranular corrosion resistance in as-welded condition Heat Treatment: Annealing at 1177°C (2150°F) followed by rapid air or water quench to restore corrosion resistance after hot working Machining: Good machinability using conventional techniques with water-based coolants. Standard tooling suitable with proper speeds and feeds Versus C-276: Lower molybdenum content makes G more cost-effective for sulfuric and phosphoric acid service where C-276's higher molybdenum is not required. Better suited for mixed acid streams containing fluorides Versus 317L Stainless: Significantly superior resistance to hot sulfuric and phosphoric acids. Specified where stainless steels show rapid corrosion in aggressive acid environments Versus G-30: G is the predecessor to G-30. G-30 offers enhanced corrosion resistance in certain phosphoric acid environments due to higher chromium
Contact ZYTC Alloy for application engineering support or to request a quotation. Our technical team can assist with material selection based on your specific process conditions and corrosion concerns. Contact Us:Email:daisy@zytcsteel.com WhatsApp/WeChat: +86 17335753350 |
