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Product information

Grade: Haynes HR-120
Origin: USA

Haynes HR-120 is a high-strength nickel-chromium solid solution heat-resistant alloy with a balanced multi-element composition of chromium, molybdenum, tungsten, and nitrogen. It combines ultra-high temperature strength with excellent resistance to carburization and sulfidation corrosion. Its long-term strength at 1095°C far exceeds that of conventional 310 and 800 series heat-resistant alloys, with stable performance against oxidation, high-temperature flue gas, molten salts, and carburizing atmospheres. It also has good workability for hot and cold processing and welding. As a result, for decades it has been widely used in demanding high-temperature applications like heat treatment furnace fixtures, waste incinerators, radiation tubes, flue gas heat recoverers, fluidized bed high-temperature components, and coal chemical cracking equipment.

Product parameter

Chemical Composition

Iron (Fe) is present as the balance, forming the base of Haynes HR-120 alloy, which helps reduce material costs and optimize hot working plasticity.
Nickel (Ni) content ranges from 35.00% to 39.00%, stabilizing the austenitic structure and providing basic high-temperature toughness and corrosion resistance.
Chromium (Cr) content is between 23.00% and 27.00%, acting as the main anti-oxidation element, greatly enhancing resistance to sulfidation and carburization corrosion.
Molybdenum (Mo) content does not exceed 2.50%, improving high-temperature creep resistance and localized crevice corrosion resistance.
Tungsten (W) content does not exceed 2.50%, helping to strengthen high-temperature sustained strength.
Niobium (Nb) content ranges from 0.40% to 0.90%, stabilizing grain boundaries and preventing the precipitation of welding carbides.
Nitrogen (N) content is between 0.15% and 0.30%, providing interstitial solid solution strengthening and improving high-temperature strength.
Carbon (C) content is between 0.02% and 0.10%, giving appropriate carbon strengthening at grain boundaries while avoiding intergranular corrosion in low carbon ranges.
Cobalt (Co) content does not exceed 3.00%, slightly enhancing high-temperature structural stability.
Manganese (Mn), Silicon (Si), Phosphorus (P), Sulfur (S), Boron (B), and Aluminum (Al) are limited to 1.50%, 1.00%, 0.020%, 0.030%, 0.015%, and 0.50% respectively to strictly control impurities and ensure long-term stability under high-temperature conditions.

Mechanical Properties

Tensile Strength: 690 MPa, indicating the maximum pull force the material can withstand.
Yield Strength: 280 MPa, the force at which the material begins to deform permanently.
Elongation: 40%, showing the large amount of deformation the material can undergo before breaking, making it less prone to cracking during bending and stamping.
Hardness: 215 HB, the resistance of the material to penetration by hard objects, with low difficulty in cutting when annealed.
Fatigue Strength: Maintains stable fatigue life under high-temperature sulfidation and carburization cyclic thermal environments, making it less likely to develop fatigue cracks during long-term high-temperature cycles.
Elastic Modulus: 197 GPa, indicating the material's stiffness, with minimal deformation under high-temperature stress and excellent dimensional stability of furnace components at high temperatures.

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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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Shiyu Metal maintains good cooperative relations with medium and large steel mills and suppliers at home and abroad, 

and has established good strategic cooperative relations with world famous steel mills such as the United States, Germany, Finland and Jap.




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