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Product information

Grade: Haynes 282
Origin: USA

Haynes 282 is a nickel-based high-temperature alloy with low γ' phase content that’s strengthened through precipitation. It balances ultra-high temperature creep strength with excellent weldability and formability, significantly reducing the risk of welding strain-age cracking. Its aluminum-titanium precipitates provide stable high-temperature strength between 700-930°C, while the chromium-molybdenum-cobalt combo ensures resistance to high-temperature oxidation and sulfide corrosion. It’s also highly adaptable to cold and hot working as well as laser additive manufacturing. Because of these properties, it’s been widely used over the years in high-temperature, high-stress applications like aerospace gas turbine hot-section components, land-based power turbines, ultra-supercritical power plant boilers, automotive high-temperature gaskets, and aerospace high-temperature structural parts.

Product parameter

Chemical composition

The nickel (Ni) content is the residual and serves as the main matrix for Haynes 282 alloy, providing stable austenitic structure and machining toughness.
The chromium (Cr) content ranges from 18.50% to 20.50%, enhancing the alloy's high-temperature resistance to oxidation and sulfur corrosion.
The cobalt (Co) content ranges from 9.00% to 11.00%, enhancing long-lasting creep strength at high temperatures and stabilizing high-temperature tissues.
Molybdenum (Mo) content ranges from 8.00% to 9.00%, solvent strengthening the matrix, enhancing high-temperature strength and local corrosion resistance.
The titanium (Ti) content ranges from 1.90% to 2.30%, forming a γ' strengthened phase with aluminum, serving as a core source of medium-temperature high-strength energy.
The aluminum (Al) content ranges from 1.38% to 1.65%, combined with titanium to form intermetallic precipitated phases, greatly enhancing high-temperature tensile and yield strength.
Iron (Fe) content should not exceed 1.50%, with strict control of impurities to avoid weakening high-temperature mechanical properties.
The carbon (C) content ranges from 0.04% to 0.08%, precipitating grain boundary carbides and enhancing high-temperature creep resistance.
The boron (B) content ranges from 0.003% to 0.010%, strengthening grain boundaries and inhibiting high-temperature intergranular cracking.
Manganese (Mn), silicon (Si), phosphorus (P), sulfur (S), copper (Cu), and zirconium (Zr) must not exceed 0.30%, 0.15%, 0.015%, 0.015%, 0.10%, and 0.020%, respectively. Impurities are strictly limited to ensure stability during welding and high-temperature conditions.

Mechanical properties

Tensile strength: 965 MPa, indicating the maximum tensile force the material can withstand.
Yield strength: 725 MPa, the force at which the material begins to undergo permanent deformation.
Elongation: 32%, indicating the amount of plastic deformation the material can undergo before breaking during stretching; it is resistant to cracking when bent or welded.
Hardness: 330 HB, the material's ability to resist hard objects pressing on its surface, high strength after aging, and requires specialized cutting tools.
Fatigue strength: Stable fatigue life under medium-to-high temperature alternating thermal loads, and turbine is less prone to fatigue cracking under alternating stress conditions.
Elastic modulus: 211 GPa, reflecting material stiffness, minimal deformation under high-temperature forces, and excellent dimensional stability of high-temperature 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.
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