Online

Product information

Grade: Haynes 188
Origin: USA

Haynes 188 is a cobalt-based high-temperature alloy strengthened by solid solution. With a high chromium and trace lanthanum formulation, it offers excellent high-temperature strength and long-lasting resistance to oxidation and thermal corrosion. It can withstand high-temperature oxidation at 1095°C, sulfate hot corrosion, sulfurous atmospheres, and molten chloride attacks for long periods. Its high-temperature creep performance is better than that of conventional nickel-based alloys, and it has good forming and welding properties. For this reason, it has been widely used over the years in demanding high-temperature environments such as aircraft engine combustion chambers, gas turbine transition sections, exhaust incinerators, high-temperature heat treatment furnaces, and aerospace high-temperature components.

Product parameter

Chemical Composition

Cobalt (Co) is the balance, forming the matrix of Haynes 188 alloy, providing outstanding high-temperature creep strength and thermal stability.
Chromium (Cr) is between 20.00% and 24.00%, enhancing the alloy's high-temperature oxidation and sulfidation resistance.
Nickel (Ni) is between 20.00% and 24.00%, improving alloy ductility and enhancing cold working and welding performance.
Tungsten (W) is between 13.00% and 16.00%, a core element for solid solution strengthening, significantly boosting high-temperature strength.
Iron (Fe) is no more than 3.00%, controlling impurity levels to avoid weakening high-temperature corrosion resistance.
Carbon (C) is between 0.05% and 0.15%, forming carbides that help improve high-temperature strength.
Lanthanum (La) is between 0.03% and 0.12%, significantly enhancing high-temperature oxidation coating adhesion.
Manganese (Mn), silicon (Si), phosphorus (P), sulfur (S), and boron (B) are limited to 1.25%, 0.50%, 0.020%, 0.015%, and 0.015% respectively, with strict limits on impurities to ensure stability under high-temperature conditions.

Mechanical Properties

Tensile Strength: 750 MPa, meaning the maximum pulling force the material can handle.
Yield Strength: 290 MPa, the force at which the material starts to deform permanently.
Elongation: 53%, showing how much the material can stretch before breaking; it’s not easy to crack during cold bending.
Hardness: 230 HB, indicating the material’s resistance to surface penetration by hard objects; excellent machining performance in annealed state.
Fatigue Strength: Maintains stable fatigue life under long-term high-temperature cyclic loads, resisting cracking under high-temperature alternating conditions.
Elastic Modulus: 232 GPa, reflecting the material's stiffness, i.e., how much it deforms under stress, ensuring dimensional stability of high-temperature structures.

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