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Product information

Grade: HAYNES 25
Origin: USA

HAYNES 25 is a cobalt-chromium-nickel-tungsten high-temperature alloy strengthened by solid solution, relying on tungsten for high-temperature solid solution strengthening. It has excellent welding performance and outstanding resistance to galling and wear. Its ability to withstand high-temperature sulfurous atmospheres is better than most nickel-based alloys. It can maintain stable creep and long-term strength below 980°C, with balanced performance in high-temperature oxidation resistance, carburization resistance, and metal galling wear resistance. It also adapts well to hot and cold working processes. For decades, it has been widely used in high-temperature wear and corrosion environments such as aircraft gas turbine combustion chambers, turbine outer rings, industrial heat treatment fixtures, high-temperature sealing components, and gas turbine brush seals.

Product parameter

Chemical Composition

Cobalt (Co) is the balance element and forms the base matrix of HAYNES 25 alloy, ensuring high-temperature toughness and wear resistance.
Chromium (Cr) content is between 19.00% and 21.00%, forming a dense oxide layer that enhances oxidation and sulfide corrosion resistance.
Tungsten (W) content is between 14.00% and 16.00%, acting as the core solid-solution strengthening element, significantly improving high-temperature creep strength.
Nickel (Ni) content is 9.00% to 11.00%, stabilizing the base structure and improving plasticity in hot and cold working as well as weldability.
Manganese (Mn) content is 1.00% to 2.00%, optimizing hot working performance and preventing sulfur-induced hot cracks.
Carbon (C) content is 0.05% to 0.15%, with an appropriate amount forming grain boundary carbides to improve high-temperature strength and wear resistance.
Iron (Fe) content does not exceed 3.00%, strictly controlling impurities to avoid compromising high-temperature corrosion resistance.
Silicon (Si) content does not exceed 0.40%, used in deoxidation during smelting to help improve oxidation resistance.
Phosphorus (P) and Sulfur (S) content do not exceed 0.040% and 0.030% respectively, with impurities strictly limited to ensure stability during hot working and welding.

Mechanical Properties

Tensile Strength: 860 MPa, indicating the maximum tensile force the material can withstand.
Yield Strength: 310 MPa, the force at which the material begins to deform permanently.
Elongation: 30%, showing the amount of plastic deformation the material can undergo before breaking, ensuring stable and controllable forming and welding.
Hardness: 277 HB, representing the material's resistance to indentation by a hard object; cold working can further improve strength and hardness.
Fatigue Strength: Stable fatigue life under high-temperature cyclic loads and friction wear conditions, not easy to seize or crack.
Elastic Modulus: 225 GPa, reflecting the stiffness of the material; it deforms little under high-temperature stress, making high-temperature sealing and wear-resistant parts dimensionally stable.

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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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From steel procurement, processing, logistics, warehousing, 
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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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Shiyu Metal set procurement, processing, agency, sales, logistics, 

warehousing in one, can provide customers with steel products procurement, processing, logistics and other one-stop services.




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