Incoloy 825 Tube

1. Standard:ASTM B163, ASTM B423, ASTM B407
2. Diameters: 0.1 - 1219.2 mm
3. Wall thickness: 0.3 to 50mm
4. Equivalent: UNS N08825, Din 2.4858, Incoloy 825

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Product Introduction

Incoloy 825 tube is a high temperature nickel-iron-chromium alloy with additions of molybdenum, copper, and titanium. It is similar to Incoloy 800, but has improved resistance to aqueous corrosion. It also has excellent resistance to reducing and oxidizing acids, stress corrosion cracking, and pitting and crevice corrosion. Alloy 825 is particularly resistant to sulfuric and phosphoric acids. ASME SB 163 UNS N08825 maintains good mechanical properties at temperatures from cryogenic to 1,000°F.

Incoloy Alloy 825 Supplier Special Metals Production Standards:

ASTM B163 Standard Specification for Seamless Nickel and Nickel Alloy Condenser and Heat-Exchanger Tubes

ASTM B407 Standard Specification for Nickel-Iron-Chromium Alloy Seamless Pipe and Tube

ASTM B423 Standard Specification for Nickel-Iron-Chromium-Molybdenum-Copper Alloy (UNS N08825, N08221, and N06845) Seamless Pipe and Tube

Incoloy 825 Chemical Composition

Ni	Cu	Mo	Fe	Mn	C	Si	S	Cr	Al	Ti
Nickel	Copper	Molybdenum	Iron	Manganese	Carbon	Silicon	Sulfur	Chromium	Aluminum	Titanium
38.0–46.0	1.5–3.0	2.5–3.5	22.0 min	1.0 max	0.05 max	0.5 max	0.03 max	19.5–23.5	0.2 max	0.6–1.2

ASTM B 163 UNS N08825 Mechanical Properties

Yield Strength:	35 ksi min
Tensile Strength:	85 ksi min
Elongation (min 2"):	30%
Hardness (Rockwell B Scale)	90 HRB max

Incoloy 825 Tube Size And Dimensions

Incoloy 825 Welded Pipes & Tubes:

Outer Diameter: 6.0mm to 88.9mm
Wall thickness: 0.3mm to 2.0mm

Incoloy 825 Seamless Pipes & Tubes:

Outer Diameter: 2.0mm to 114mm
Wall thickness: 0.3mm to 8.0mm

Length: Standard 6000mm, but we can adjust based on customer's requirement.

2.4858 Alloy 825 Dimensional Tolerances

OD	OD Tolerance	Wall Tolerance
0.250"–.500" excl	+0.004"/-.000"	± 10%
0.500"–.750" incl	+0.005"/-.000"	± 10%

Typical applications of Incoloy UNS N08825 Pipe

Chemical process equipment
Pollution control equipment
Oil and gas well pipelines
Phosphoric acid evaporator
Condenser
Oil and gas well equipment
Hydraulic system
Nuclear fuel processing
Oil and natural gas
Nuclear energy and electricity

Incoloy 825 Vs Inconel 825

Incoloy 825 and Inconel 825 are two common high-alloy materials that differ in their corrosion resistance:

Composition: Incoloy 825 is mainly composed of nickel, chromium, iron, and copper, while Inconel 825 contains nickel, chromium, and iron, and has no copper component.
Corrosion resistance: Incoloy 825 has better corrosion resistance than Inconel 825 in acidic media such as sulfuric acid and nitric acid. And Inconel 825 has better corrosion resistance in chloride medium.