High tensile, creep, and rupture strength; out-standing fatigue and thermal-fatigue strength; oxidation resistance; and excellent weldability and brazeability are the properties of INCONEL alloy 625 that make it interesting to the aerospace field.

Alloy 625 is a nonmagnetic , corrosion - and oxidation-resistant, nickel-based alloy. Its outstanding strength and toughness in the temperature range cryogenic to 2000°F (1093°C) are derived primarily from the solid solution effects of the refractory metals, columbium and molybdenum, in a nickel-chromium matrix.

TC is the thermal conductivity with an unit of Btu/hr-ft-°F, and TD is the thermal diffusivity with and unit of ft2/hr. The nominal coefficients of TC and TD for alloy 625 at elevated temperatures are listed in below two tables.

The thermal conductivity of AA6082 alloy is about 150-170 W/mK, while for AISI 316 steel and alloy 625, it is about 12.9 and 9.95 W/ mK, respectively [41] [42] [43]. As a result, welding...

Thermal Conductivity (W/m-K) Thermal conductivity, thermal diffusivity, specific heat and density are related through, k=\alpha { c }_{ p }\rho . Therefore, best estimation of the thermal conductivity is calculated based on that relation.

2024年11月22日 · This article delves into the intricate dynamics of thermal conductivity, the unique attributes of Inconel 625, and best practices for procurement professionals seeking to navigate the complexities of sourcing high-performance materials in an ever-evolving market.

The safe operating temperature range of Nickel Inconel 625 spans from -238℉ (-150℃) to up to 1800℉ (982℃), so it can be used in a wide spectrum of applications that require exceptional corrosion resistance characteristics.

Inconel 625 has a slightly higher density and lower melting point, making it suitable for high-stress, high-temperature environments. Incoloy 825 offers better thermal conductivity and specific heat capacity, which makes it more efficient in heat transfer applications.

Alloy 625 presents two optimum heat treatments, first for service temperature up to 600 oC and the second treatment for service temperatures above 600 oC. For service temperatures at 600 oC and below hot finished, cold-finished and annealed conditions are recommended.

Inconel® 625 can operate from cryogenic temperatures up to 1800°F (980°C). Applications include: Honeycomb, springs, seals, bellows, diaphragms, land-based turbine components, aircraft exhaust ducting, and heat exchangers.