Online

Product information

Grade: Haynes 242
Origin: USA

Haynes 242 is an age-hardenable nickel-molybdenum-chromium alloy that gains strength through ordered precipitates. It combines low thermal expansion, high strength at elevated temperatures, and stable oxidation resistance. Its creep strength at temperatures up to 705°C far exceeds that of ordinary solid-solution alloys, and it performs exceptionally well against fluorides, reducing mixed acids, and high-temperature sulfidation corrosion. Even after aging, it retains good ductility, and it has stable formability for both hot and cold working, including welding. Because of these properties, it has been widely used over the years in demanding high-temperature, corrosion-prone applications like aerospace gas turbine seals, high-temperature fasteners, fluoride chemical equipment, heat treatment components, and aerospace high-temperature piping.

Product parameter

Chemical Composition

Nickel (Ni) is the main component of Haynes 242 alloy and makes up the balance, providing base toughness and corrosion resistance. 
Molybdenum (Mo) content ranges from 24.00% to 26.00%, acting as the core solid solution strengthening element, significantly enhancing high-temperature strength and resistance to reducing acids and fluoride media corrosion. 
Chromium (Cr) content ranges from 7.00% to 9.00%, improving medium-temperature oxidation and sulfide corrosion resistance. 
Iron (Fe) content does not exceed 2.00%, carefully controlled to avoid weakening high-temperature strength and corrosion resistance. 
Cobalt (Co) content does not exceed 2.50%, slightly optimizing high-temperature microstructural stability. 
Aluminum (Al) content does not exceed 0.50%, aiding deoxidation and improving high-temperature oxide film adherence. 
Carbon (C) content does not exceed 0.03%, extremely low to prevent precipitation of carbide at grain boundaries and avoid welding intergranular corrosion. 
Manganese (Mn), Silicon (Si), Copper (Cu), Boron (B), Phosphorus (P), and Sulfur (S) do not exceed 0.80%, 0.80%, 0.50%, 0.006%, 0.020%, and 0.020% respectively, with strict impurity limits to ensure long-term stability under high-temperature conditions.

Mechanical Properties

Tensile strength: 725 MPa, indicating the maximum stretching force the material can bear. 
Yield strength: 310 MPa, the force at which the material starts to deform permanently. 
Elongation: 40%, showing how much the material can stretch before breaking, making it resistant to cracking during bending or punching. 
Hardness: 230 HB, representing the material’s resistance to indentation by hard objects; easy to machine in annealed condition. 
Fatigue strength: Stable fatigue life under alternating thermal loads at high and low temperatures, so high-temperature seals and fasteners are less prone to fatigue cracking under fluctuating conditions. 
Elastic modulus: 214 GPa, reflecting the stiffness of the material, low thermal expansion, and minimal deformation in structure at high temperatures.

Product display

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.



ENTERPRISE ADVANTAGE




SERVICE

From steel procurement, processing, logistics, warehousing, 
Shiyu Metal has a perfect management system, tailor-made solutions for each customer, strictly control each link, to ensure safe, efficient and accurate product delivery to customers;




RESOURCE

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.




SCALE

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.




PRODUCT

Shiyu Metal operates a wide range of steel products, can provide customers with product size and width customization, prefabrication and other services, perfect product quality supervision system, to ensure high standards of product quality, high quality.

Contact us

Phone:021-60871505 Email:sypww@outlook.com Address:Bldg 9, Phase 1, G60 Cloud Corridor, Xinqiao, Songjiang, Shanghai
All content in this website is copyrighted by Shiyu Metal Material Technology Co., LTD Copyright©2023-2026 沪ICP备2023035269号-1