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Product information

Grade: Hastelloy G-30
Origin: USA

Hastelloy G-30 is a high-chromium, ultra-low carbon nickel-chromium-iron-molybdenum-copper alloy, specially optimized for mixed acid and wet-process phosphoric acid corrosion conditions, and its welded heat-affected zones won’t experience intergranular corrosion. The high chromium content greatly enhances resistance to oxidizing acids like nitric and phosphoric acids. Combined with a molybdenum-copper-tungsten system, it also resists mixed acids containing fluorine and chlorine, pickling waste solutions, and oxidizing salt solutions. It performs far better than ordinary nickel alloys in highly corrosive, mid-to-high temperature acid-base mixed environments. For over thirty years, it has been widely used in highly corrosive areas such as fertilizer phosphoric acid plants, stainless steel pickling, fine chemicals, flue gas desulfurization, nuclear waste treatment, and pharmaceutical reaction equipment.


Product parameter

Chemical Composition

Nickel (Ni) is the main base of the Hastelloy G-30 alloy, present in the remaining amount, providing a stable austenitic structure and basic corrosion resistance.  
Chromium (Cr) ranges from 28.00% to 31.50%; it is the key anti-oxidation element, greatly improving resistance to oxidizing acids like nitric and phosphoric acid.  
Iron (Fe) ranges from 13.00% to 17.00%, optimizing the alloy’s cold and hot workability.  
Molybdenum (Mo) ranges from 4.00% to 6.00%, enhancing resistance to chloride ions and pitting in reducing acids.  
Tungsten (W) ranges from 1.50% to 4.00%, improving resistance to crevice corrosion and medium-temperature strength.  
Copper (Cu) ranges from 1.00% to 2.40%, boosting durability in mixed media like sulfuric and hydrofluoric acid.  
Niobium (Nb) ranges from 0.30% to 1.50%, stabilizing carbon and preventing intergranular corrosion during welding.  
Cobalt (Co) does not exceed 5.00%, slightly enhancing high-temperature structural stability.  
Carbon (C) does not exceed 0.030%, very low carbon content prevents carbide precipitation and avoids welding corrosion risks.  
Manganese (Mn), silicon (Si), phosphorus (P), and sulfur (S) are strictly limited to 1.50%, 0.80%, 0.040%, and 0.020%, respectively, ensuring long-term corrosion resistance.

Mechanical Properties

Tensile Strength: 690 MPa, indicating the maximum pulling force the material can withstand.  
Yield Strength: 283 MPa, the force at which the material begins to deform permanently.  
Elongation: 40%, showing the material’s capacity to stretch before breaking, with excellent bending and stamping performance.  
Hardness: 220 HB, the material’s resistance to surface indentation, easy to machine in the annealed state.  
Fatigue Strength: stable fatigue life under alternating acidic and alkaline conditions at different temperatures, with outstanding stress corrosion cracking resistance.  
Elastic Modulus: 210 GPa, reflecting the material’s stiffness and how much it deforms under load, ensuring strong dimensional stability in high-temperature equipment.

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COMPANY PROFILE




Shiyu Metal Material Technology Co., Ltd. is a collection of procurement, processing, agent, sales, logistics, warehousing in one of the enterprises, the company has a large-scale spot supply base in China, with domestic and foreign large steel mills and suppliers to maintain good relations of cooperation, with a full range of multi-channel procurement resources.
Shiyu Metal main products: nickel base alloy, Hastelloy, super austenitic stainless steel, duplex stainless steel, cobalt base alloy, pure nickel, titanium and titanium alloy, heat resistant, corrosion resistant alloy and other kinds of steel, a large number of product categories, can meet the size and thickness customization, prefabrication and other diversified needs.
The company has ISO9001 quality certification, the company's product standards include: the United States (UNS) ASTM /ASME, AMS, German DIN/EN, Japan (SUS) JIS and other standards supply, provide the original material certificate. We can supply according to the standards and technical requirements provided by customers to ensure that the goods and specifications are complete to meet the needs of various merchants. From raw materials to finished products, all go through three quality inspection to ensure the qualified rate of finished products. Shiyu Metal strives for perfection in every detail to ensure that the quality of products in different countries and regions around the world can meet international standards. Shiyu Metal has established a good strategic cooperative relationship with the world famous steel mills such as HAYNES, ATI, SPECIALMETALS, VDM, OUTOKUMPU, Japan Metallurgy, Nippon Steel, and Datong Special Steel.
The products supplied by Shiyu Metal are widely used in nuclear power, petrochemical, mechanical engineering, precision processing, aerospace, electronic instruments, medical equipment, automobile manufacturing, environmental protection, wind power application, seawater desalination, shipbuilding industry, paper making machinery, mining engineering, cement manufacturing, metallurgical manufacturing, corrosion resistant environment field, high temperature environment field, mold field, etc. It is a global high-quality supplier of special steel materials.
Shiyu Metal Material Technology Co., Ltd. is committed to the purchase, agent and sales of special steel, and has a perfect special steel sales management system and product quality supervision system. The company has been adhering to the "integrity, innovation, responsibility, win-win" business philosophy, adhere to the "quality first, customer first" service purpose, to provide customers with quality services and high-quality steel products. Shiyu Metal actively participates in the development of domestic steel industry ecology, and is willing to contribute to the development of national special steel.



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