GH4141高温合金

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Grade: GH4141
Steel Manufacturer: Haynes; SMC; ATI; VDM; Outokumpu; NYK; Jinri Tiefu, Fushun / Northeast Special Steel
GH4141 (a superalloy) is a precipitation-hardened deformation superalloy based on nickel, featuring excellent high-temperature strength, oxidation resistance, and corrosion resistance. It is widely used in the manufacturing of key components in fields such as aerospace and energy chemical industries. ‌
High-temperature performance
It maintains outstanding mechanical properties below 900℃, with tensile strength reaching over 600 MPa and elongation approximately 12%-15%. Under the condition of 750℃/300 MPa, the endurance life exceeds 5000 hours, and the steady-state creep rate is lower than 1×10⁻⁸/s. ‌
Oxidation resistance and corrosion resistance
The oxidation weight gain rate at 980℃ is less than 0.5 mg/cm²·h, and a continuous Cr₂O₃ - Al₂O₃ composite oxide film forms on the surface; it is resistant to corrosion in acidic media (such as 10% hydrochloric acid), with an annual corrosion rate of less than 0.02 mm, and the pitting resistance index (PREN) is ≥35 (far exceeding 304 stainless steel). ‌
Mechanical properties
The tensile strength at room temperature is ≥1080 MPa, the yield strength is ≥685 MPa (in aged state); the yield strength remains ≥500 MPa at 800℃. The fatigue strength reaches 1.3 times the requirements of aviation standards (650℃/400 MPa condition). ‌
Processing and heat treatment
The heat processing temperature range is narrow (1050 - 1150℃), and intermediate annealing is required to restore plasticity; the solution treatment is carried out at 1080℃ with rapid cooling, and the aging treatment is a double-stage aging process of 730 - 760℃ + 620 - 650℃.

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Chemical composition 
GH4141 (GH141) is a precipitation-hardening type nickel-based wrought high-temperature alloy. Its chemical composition is based on nickel, supplemented by elements such as chromium, cobalt, molybdenum, aluminum, and titanium for strengthening. The main component ranges are as follows:
Base elements
‌Nickel (Ni): 52% - 60%, providing the foundation for high-temperature stability and corrosion resistance. ‌
‌Chromium (Cr): 18% - 20%, forming a dense oxide film, enhancing oxidation resistance and corrosion resistance. ‌
‌Cobalt (Co): 10% - 15%, improving high-temperature creep resistance and thermal stability. ‌
‌Molybdenum (Mo): 4.5% - 5.5%, strengthening the solid solution, improving creep resistance and fatigue resistance. ‌
Strengthening elements
‌Aluminum (Al): 1.4% - 2.0%, forming the γ' phase (Ni₃(Al,Ti)) with titanium, significantly enhancing high-temperature strength. ‌
‌Titanium (Ti): 2.9% - 3.5%, working in synergy with aluminum, controlling the precipitation of γ' phase and optimizing mechanical properties. ‌
Other elements
‌Boron (B): ≤ 0.008%, refining grains and enhancing grain boundary strength.
‌Phosphorus (P), Sulfur (S): ≤ 0.015%, reducing grain boundary segregation. ‌
‌Iron (Fe): ≤ 1%, controlling cost but avoiding excessive amounts. ‌
This alloy achieves a balance between high-temperature strength and corrosion resistance through the synergistic effect of multiple elements, and is suitable for high-temperature scenarios such as aircraft engines and nuclear energy equipment. 
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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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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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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.