Haynes 718
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Haynes 718 is a nickel-based precipitation-hardening superalloy with excellent comprehensive performance, widely used in aerospace, energy and other fields.
Product name：
N04400
Material：
Monel
Warehouse：
Tianjin
Surface treatment：
Category：
Keyword：
Haynes 718
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Details description
Chemical Composition
Mainly contains approximately 52% nickel (Ni), approximately 18% chromium (Cr), the balance iron (Fe), approximately 3% molybdenum (Mo), approximately 0.9% titanium (Ti), approximately 0.5% aluminum (Al), carbon (C) content not exceeding 0.05%, approximately 0.004% boron (B), etc.
Physical Properties
Density is approximately 8.23 g/cm³, melting temperature range is 1260 - 1335℃. Thermal conductivity at room temperature is 11.4 W/m・℃, elastic modulus is approximately 200 GPa.
Mechanical Properties
Yield strength at room temperature is approximately 827 MPa (120 ksi), tensile strength is approximately 1034 MPa (150 ksi), and it maintains high strength at high temperatures, such as excellent high-temperature strength below 650℃. It also has good plasticity and toughness, and is non-magnetic.
Performance Characteristics
It has good processing and welding performance, can be welded using various welding techniques, and has no tendency for post-weld cracking. In the temperature range of -253℃ to 650℃, it maintains good strength and toughness, and also has excellent oxidation and corrosion resistance, and good long-term organizational stability.
Execution Standards
Complies with DIN, UNS, ASTM, GB/T14992 and other standards, corresponding grades include 2.4668, N07718, GH4169, etc.
Product Specifications and Supply Form
Available in various forms such as plates, bars, tubes, strips, wires, and forgings. Plates can be used to manufacture pressure vessels, etc., bars are often used to manufacture shaft parts, and wires can be used for welding, etc.
Application Fields
Widely used in aerospace, for manufacturing engine components, turbine blades, combustion chamber components, etc.; in the chemical industry, it can be used to manufacture reactors, heat exchangers and other corrosion-resistant equipment and components; it can also be used in related high-temperature components in the nuclear energy industry.
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