Extruded fin tubes made of SB444 UNS N06625 are a type of heat exchanger component commonly used in industrial applications, especially in environments where high temperatures and corrosive conditions are present.
SB444 UNS N06625 refers to the material specification for these tubes. "SB444" typically denotes a specification established by the American Society of Mechanical Engineers (ASME) for nickel-chromium-molybdenum alloy tubes, while "UNS N06625" is a specific grade within this specification.
ASME SB444 This is a specification standard set by the American Society of Mechanical Engineers (ASME) specifies seamless and welded nickel-chromium-molybdenum-columbium alloy (UNS N06625) pipes for general corrosion resistance and heat-resistant service.UNS N06625: This is the Unified Numbering System (UNS) designation for a specific type of nickel-based alloy. UNS N06625 refers to Inconel 625, which is a popular corrosion-resistant nickel alloy with excellent strength and oxidation resistance at high temperatures.
ASME SB444 UNS N06625 Chemical Composition
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Element
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Percentage Composition
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Nickel (Ni)
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58.0 min
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Chromium (Cr)
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20.0 - 23.0
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Iron (Fe)
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5.0 max
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Molybdenum (Mo)
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8.0 - 10.0
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Niobium (Nb)
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3.15 - 4.15
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Tantalum (Ta)
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0.40 - 0.70
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Carbon (C)
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0.10 max
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Manganese (Mn)
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0.50 max
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Silicon (Si)
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0.50 max
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Phosphorus (P)
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0.015 max
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Sulfur (S)
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0.015 max
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Aluminum (Al)
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0.40 max
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Titanium (Ti)
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0.40 max
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ASME SB444 UNS N06625 Mechanical Property
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Property
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Value
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Tensile Strength (at room temperature)
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120 ksi (827 MPa)
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Yield Strength (0.2% offset)
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60 ksi (414 MPa)
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Elongation (in 2 inches)
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30%
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Hardness (Brinell)
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≤ 220
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Hardness (Rockwell B)
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≤ 95
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Modulus of Elasticity
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29.0 x 10^6 psi (200 GPa)
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Poissons Ratio
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0.3
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Extruded fin tube SB444 UNS N06625 would describe a heat exchanger component consisting of finned tubes made from seamless or welded nickel-chromium-molybdenum-columbium alloy, specifically Inconel 625, meeting the specifications outlined in ASTM SB444. These components are likely used in applications requiring high corrosion resistance and thermal performance, such as in chemical processing, oil and gas, or aerospace industries.
UNS N06625 is a high-strength, corrosion-resistant nickel-based alloy known as Inconel 625. It offers excellent resistance to a wide range of corrosive environments, including chloride ion stress-corrosion cracking, oxidation, and pitting. This makes it suitable for use in aggressive industrial environments, such as chemical processing, aerospace, and marine applications.
Extruded fin tubes feature fins that are formed by forcing the base tube material through a die, creating fins on the outer surface. These fins increase the surface area of the tube, facilitating more efficient heat transfer between the fluid inside the tube and the surrounding environment. This design is particularly effective for applications requiring enhanced heat transfer performance.
ASME SB444 UNS N06625 Extruded Fin Tube Typcial Inquiry
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Extruded Finned Tubes SB-444 S06625
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Base Tube Material
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Fin Material
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Tube Length (mm)
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Fin length (mm)
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Fin Tube Quantity (Pc)
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SB-444 S06625
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Aluminum
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9710
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9610
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248
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Base Tube O.D (mm)
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Base Tube Thickness (mm)
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Fin Height (mm)
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Fin Thickness (mm)
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Fin Pitch (mm)
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25.4
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2.77
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11
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0.4
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2.54
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ASME SB444 is standard Specification for Standard Specification for Nickel-Chromium-Molybdenum-Columbium Alloys (UNS N06625 and UNS N06852) and Nickel-Chromium-Molybdenum-Silicon Alloy (UNS N06219) Pipe and Tube.
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ASME SB444 UNS N06625 Extruded Finned Tube |
