What is the density of INCOLOY 825?

8140 kg/m³ — the figure the weight calculators on this site use for INCOLOY 825. The value is Special Metals / nickel alloy datasheets’s.

What is the chemical composition of INCOLOY 825?

C ≤ 0.05, Si ≤ 0.5, Mn ≤ 1, S ≤ 0.03, Cr 19.5–23.5, Ni 38–46, Mo 2.5–3.5, Cu 1.5–3, in mass %, to ASTM / Special Metals. An element the standard sets no requirement for is left blank here rather than written as zero.

What are the mechanical properties of INCOLOY 825?

Tensile ≥ 586 MPa, Yield ≥ 241 MPa, Elongation min ≥ 30 % — ASTM B424/vendor reference, Plate/Sheet, Annealed. Those are the standard’s requirements; the mill test certificate governs the metal delivered.

INCOLOY 825 — properties and composition

Designations

UNS: N08825
EN number: 2.4858
EN name: NiCr21Mo

Density

Density: 8140 kg/m³
Per: Special Metals / nickel alloy datasheets
Corrosion resistance: Excellent
Product forms: Sheet, plate, bar, pipe

Chemical composition

Chemical composition — mass %
Standard	Product form	Basis	C	Si	Mn	S	Cr	Ni	Mo	Cu	Other rules
ASTM / Special Metals	Ni-Fe-Cr-Mo-Cu	Specification	≤ 0.05	≤ 0.5	≤ 1	≤ 0.03	19.5–23.5	38–46	2.5–3.5	1.5–3	Ti 0.6-1.2; Al max 0.2; Fe balance

mass %. A blank cell means the standard sets no requirement for that element, not zero. Single values are limits: "≤" a maximum, "≥" a minimum.

Reference values from the cited standards. They describe what the standard requires, not a specific heat of material; the mill test certificate governs what is delivered.

Mechanical properties

Mechanical properties
Standard	Product form	Condition / temper	Test temperature	Yield	Tensile	Elongation min	Notes
ASTM B424/vendor reference	Plate/Sheet	Annealed	20 °C	0.2% offset ≥ 241 MPa	≥ 586 MPa	30 % (Product/condition dependent)	Representative annealed values.

Each row is one standard, one product form and one condition — the values do not transfer across rows. A blank cell means the standard sets no requirement.

Reference values from the cited standards. They describe what the standard requires, not a specific heat of material; the mill test certificate governs what is delivered.

Physical properties

Physical properties
Temperature	Density	Young’s modulus	Poisson’s ratio	Thermal expansion (20–100°C)	Thermal conductivity (20°C)	Specific heat	Electrical resistivity (20°C)	Melting range	Magnetic
20 °C	8140 kg/m³	196 GPa	0.3	14 µm/m·°C	11.1 W/m·K	0.44 kJ/kg·°C	1.13 µΩ·m	1370–1400 °C	Non-magnetic

Reference values from the cited standards. They describe what the standard requires, not a specific heat of material; the mill test certificate governs what is delivered.

Typical applications

Acid service, oil & gas, pollution control

Common questions

01What is the density of INCOLOY 825?: 8140 kg/m³ — the figure the weight calculators on this site use for INCOLOY 825. The value is Special Metals / nickel alloy datasheets’s.
02What is the chemical composition of INCOLOY 825?: C ≤ 0.05, Si ≤ 0.5, Mn ≤ 1, S ≤ 0.03, Cr 19.5–23.5, Ni 38–46, Mo 2.5–3.5, Cu 1.5–3, in mass %, to ASTM / Special Metals. An element the standard sets no requirement for is left blank here rather than written as zero.
03What are the mechanical properties of INCOLOY 825?: Tensile ≥ 586 MPa, Yield ≥ 241 MPa, Elongation min ≥ 30 % — ASTM B424/vendor reference, Plate/Sheet, Annealed. Those are the standard’s requirements; the mill test certificate governs the metal delivered.
04What is INCOLOY 825 used for?: Acid service, oil & gas, pollution control