INCONEL G-3/N06985/2.4619 Bar/Rod/Wire/Forging/Plate/Strip Long-Term Reliability In Industrial Applications

INCONEL G-3/N06985/2.4619 Bar/Rod/Wire/Forging/Plate/Strip Long-Term Reliability In Industrial Applications

INCONEL G-3 (UNS N06985 / 2.4619) is a nickel-chromium-iron-molybdenum alloy with excellent corrosion resistance, particularly in oxidizing and reducing environments. It offers superior resistance to stress corrosion cracking and pitting, making it ideal for chemical processing, marine, and aerospace applications. The alloy is available in various forms, including bar, rod, wire, forging, plate, and strip, catering to diverse industrial needs. Its composition includes high nickel (≈44%), chromium (≈21%), and molybdenum (≈7%), providing outstanding resistance to sulfuric, phosphoric, and nitric acids. INCONEL G-3 maintains strength and stability at elevated temperatures while exhibiting good weldability and formability. It is widely used in heat exchangers, piping, reactors, and offshore equipment where extreme corrosion resistance is required.

Trade Code

Inconel G-3 (UNS N06985 / W.Nr. 2.4619) is a corrosion-resistant nickel-based alloy with enhanced resistance to oxidizing and reducing environments. Here are its key features for bar, rod, wire, forging, plate, and strip products:

Key Features of Inconel G-3 (N06985 / 2.4619)

1. Excellent Corrosion Resistance

• Superior resistance to oxidizing acids (e.g., nitric acid, sulfuric acid, and phosphoric acid).
• Exceptional performance in reducing acid environments due to its high chromium and moderate molybdenum content.
• Resistance to pitting, crevice corrosion, and stress corrosion cracking (SCC) in chloride-containing environments.

2. High-Temperature Stability

• Retains mechanical strength and oxidation resistance at elevated temperatures.
• Suitable for applications requiring exposure to aggressive chemical environments at high temperatures.

3. Good Weldability and Fabricability

• Can be welded using standard welding techniques (GTAW, GMAW, SMAW).
• Easily processed into bar, rod, wire, forgings, plates, and strips.

4. Strong Mechanical Properties

• Good tensile and yield strength with moderate hardness.
• Maintains ductility and toughness in extreme conditions.

Applications: The alloy's versatility allows it to be used across various sectors:​

• Chemical Processing: Ideal for equipment handling reducing acids like phosphoric and sulfuric acids, such as evaporators, heat exchangers, and tank liners.
• Air Pollution Control: Utilized in flue gas desulfurization systems, including components like scrubbers, quenchers, dampers, and outlet ducting areas.
• Pulp and Paper Industry: Applied in various equipment due to its resistance to corrosive substances encountered in the industry. ​
• Oil and Gas Production: Suitable for sour gas environments, offering resistance to hydrogen sulfide (H₂S) and chlorides.

Standards and Specifications: INCONEL G-3 conforms to several industry standards:​

• Rod and Bar: ASTM B581, ASME SB-581, DIN 17752​
• Plate, Sheet, and Strip: ASTM B582, ASME SB-582, DIN 17750, ISO 6208​
• Seamless Pipe and Tube: ASTM B622, ASME SB-622, ASTM B829, ASME SB-829, DIN 17751​
• Welded Pipe: ASTM B619, ASME SB-619, ASTM B775, ASME SB-775​
• Welded Tube: ASTM B626, ASME SB-626, ASTM B751, ASME SB-751​

These specifications ensure the alloy meets stringent quality and performance criteria for diverse industrial applications. ​

In summary, INCONEL G-3's robust corrosion resistance and adaptability across various product forms make it a preferred choice for demanding environments in chemical processing, pollution control, pulp and paper production, and the oil and gas industry.

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