High Standard Stainless Steel With Strict Inspection
Hastelloy G30
Complete Technical Data Sheet for Hastelloy G30 Chemical Composition Mechanical Properties Physical Properties International Standards & Grade Equivalents Key Applications of Hastelloy G30 Chemical Processing Plants Hastelloy G30 is extensively utilized in the manufacture of reactors, piping, and vessels that handle highly corrosive acids such as phosphoric and nitric acid. Its superior corrosion resistance promotes […]

Grade Hastelloy G30 Product Specifications

Nickel Alloy Plates
Hastelloy G30 nickel alloy plates provide superior corrosion resistance and mechanical strength, making them ideal for chemical reactors, storage tanks, and high-corrosion industrial environments requiring reliable, long-lasting materials.

Nickel Alloy Bars/Rods
Hastelloy G30 bars and rods offer durability for demanding industrial applications. Used in pressure vessels, support frameworks, and equipment components, they ensure critical performance and material integrity.

Nickel Alloy Tubes
Hastelloy G30 tubes offer excellent resistance to acidic and oxidizing media. Commonly selected for heat exchangers and fluid transfer systems, they ensure high reliability and extended service life under strict process conditions.

Nickel Alloy Wire
Hastelloy G30 wire is engineered for welding and fabrication tasks that require precise control and outstanding corrosion resistance. It is suitable for joining and reinforcing critical components in aggressive chemical environments.
Complete Technical Data Sheet for Hastelloy G30
| Element | Composition (%) |
|---|---|
| Nickel | Balanced |
| Chromium | 20.0-22.0 |
| Molybdenum | 8.0-10.0 |
| Tungsten | 3.0-4.0 |
| Iron | 4.0 max |
| Cobalt | 1.0 max |
| Sulfur | 0.03 max |
| Carbon | 0.01 max |
| Phosphorus | 0.02 max |
| Property | Value |
|---|---|
| Tensile Strength | 80 ksi |
| Yield Strength | 30 ksi |
| Elongation | 50% |
| Hardness | HRB 85 |
| Property | Value |
|---|---|
| Density | 8.2 g/cm³ |
| Melting Point | 1300°C |
| Thermal Conductivity | 12 W/mK |
| Electrical Resistivity | 0.1 µΩ·m |
| International Standards | Grade Equivalents |
|---|---|
| ASTM B574 | Hastelloy G-30 |
| UNS N06030 | Hastelloy® G-30® Alloy |
| ISO 15156 | Alloy G-30 |
| EN 2.4603 | Hastelloy G30 |
| ASME SB574 | Nickel Alloy G-30 |
Benefits of Using Hastelloy G30

Exceptional Corrosion Resistance Across Multiple Environments
Hastelloy G30 is engineered to provide outstanding resistance to a broad range of corrosive environments, particularly those involving strong acids such as phosphoric, nitric, and sulfuric acids. Its advanced alloy composition, featuring enhanced levels of chromium, cobalt, and tungsten, minimizes both uniform and localized attack even in mixed chemical streams and highly oxidizing conditions. This superior corrosion resistance translates to longer service life for process equipment, reducing the risk of failure and protecting critical infrastructure from premature degradation.
Enhanced Reliability and Operational Uptime
Utilizing Hastelloy G30 contributes directly to improved operational reliability and equipment uptime. The alloy’s exceptional stability in the as-welded condition significantly decreases susceptibility to heat-affected zone (HAZ) corrosion, a common challenge for lesser alloys. As a result, components fabricated from G30 maintain their integrity after welding and fabrication, supporting continuous plant operations with minimal unplanned downtime and maximizing return on investment.


Cost Efficiency Through Extended Service Intervals
Investing in Hastelloy G30 can deliver substantial long-term cost savings for industrial operations. Its high resistance to chemical attack and minimized maintenance requirements enable extended intervals between inspections, repairs, or replacements. Plants can operate more efficiently through reduced maintenance shutdowns, lower material usage for repairs, and fewer labor hours spent on upkeep. This delivers not only direct cost savings but also improves overall productivity in demanding production environments.
Versatility for Complex Industrial Applications
Hastelloy G30’s unique blend of mechanical strength and chemical resistance supports its use in a variety of harsh process settings, from chemical reactors and heat exchangers to piping, storage tanks, and environmental control systems. This versatility allows engineers and designers to specify a single, reliable material for multiple critical applications, streamlining procurement processes and ensuring consistent quality across projects. The alloy’s broad compatibility with other industrial materials further facilitates integration and performance in complex system designs.

Key Applications of Hastelloy G30
Chemical Processing Plants
Hastelloy G30 is extensively utilized in the manufacture of reactors, piping, and vessels that handle highly corrosive acids such as phosphoric and nitric acid. Its superior corrosion resistance promotes long service life and operational safety in these demanding environments.
Pollution Control and Flue Gas Desulfurization
The alloy’s resilience against aggressive, mixed chemical streams makes it a preferred material for scrubbers, absorbers, and components in flue gas desulfurization systems, contributing to efficient pollutant removal and regulatory compliance within power generation facilities.
Fertilizer and Agrochemical Production
Process equipment in the fertilizer industry, including evaporators and storage tanks, benefits from Hastelloy G30’s robust protection against both uniform and localized corrosion, especially in systems involving wet-process phosphoric acid and other challenging substances.
What Our Clients Say
“After specifying Hastelloy G30 for our new acid processing unit, we’ve experienced outstanding corrosion resistance across every component. Its performance has significantly reduced our maintenance downtime and extended equipment service life.”

James Peterson
Senior Process Engineer
“Our facility faced constant challenges with material degradation until we switched to Hastelloy G30. The technical support and product quality have been exceptional, providing peace of mind for our long-term projects.”

Linda Zhang
Procurement Manager
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Frequently Asked Questions
What is Hastelloy G30 primarily used for?
Hastelloy G30 is widely used in chemical processing, fertilizer production, power generation, and waste treatment industries due to its exceptional resistance to corrosion in harsh environments, particularly those involving phosphoric acid.
What are the main elements in Hastelloy G30’s composition?
Hastelloy G30 primarily consists of nickel, chromium, iron, molybdenum, cobalt, tungsten, and copper, providing a unique balance of strength and corrosion resistance.
How does Hastelloy G30 perform in phosphoric acid environments?
Hastelloy G30 offers outstanding resistance to localized and uniform corrosion in wet-process phosphoric acid, making it ideal for equipment in fertilizer manufacturing.
In which product forms is Hastelloy G30 available?
The alloy is available as plates, sheets, bars, billets, pipes, tubes, wires, welding electrodes, fittings, and flanges to satisfy a wide range of engineering requirements.
Is Hastelloy G30 suitable for welding applications?
Yes, Hastelloy G30 demonstrates exceptional weldability and resists grain boundary precipitation in welded conditions, ensuring reliable performance of welded joints.
What are the temperature limits for Hastelloy G30?
Hastelloy G30 retains its mechanical properties and corrosion resistance across a broad temperature range, making it suitable for both low- and moderately high-temperature applications.
How does Hastelloy G30 compare to other nickel alloys?
Hastelloy G30 provides superior corrosion resistance, especially in mixed acid environments, outperforming many other nickel-based alloys in aggressive service conditions.
Can Hastelloy G30 be customized for specific applications?
Yes, Hastelloy G30 can be manufactured in various forms and sizes according to project specifications and application requirements. Technical support is available to assist with selection and design.
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