What is the density of INCONEL 625?

8440 kg/m³ — the figure the weight calculators on this site use for INCONEL 625. The value is Special Metals / nickel alloy datasheets’s.

What is the chemical composition of INCONEL 625?

C ≤ 0.1, Si ≤ 0.5, Mn ≤ 0.5, P ≤ 0.015, S ≤ 0.015, Cr 20–23, Ni ≥ 58, Mo 8–10, 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 INCONEL 625?

Tensile ≥ 827 MPa, Yield ≥ 414 MPa, Elongation min ≥ 30 % — ASTM B443/vendor reference, Plate/Sheet, Solution annealed. Those are the standard’s requirements; the mill test certificate governs the metal delivered.

INCONEL 625 — properties and composition

Designations

UNS: N06625
EN number: 2.4856
EN name: NiCr22Mo9Nb

Density

Density: 8440 kg/m³
Per: Special Metals / nickel alloy datasheets
Corrosion resistance: Excellent
Product forms: Sheet, plate, bar, tube

Chemical composition

Chemical composition — mass %
Standard	Product form	Basis	C	Si	Mn	P	S	Cr	Ni	Mo	Other rules
ASTM / Special Metals	Ni-Cr-Mo-Nb	Specification	≤ 0.1	≤ 0.5	≤ 0.5	≤ 0.015	≤ 0.015	20–23	≥ 58	8–10	Nb+Ta 3.15-4.15; Fe max 5.0; Co max 1.0; Al max 0.40; Ti max 0.40

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 B443/vendor reference	Plate/Sheet	Solution annealed	20 °C	0.2% offset ≥ 414 MPa	≥ 827 MPa	30 % (Product/condition dependent)	Representative annealed minimums. VERIFY BEFORE APPROVE — audit v2 finding 5 raised yield 275 → 414 MPa and tensile 690 → 827 MPa (ASTM B443 Gr 1, solution annealed, 60/120 ksi). Independently confirm against the current ASTM B443 edition from a licensed copy before moving this row past draft (R12/R13). The audit flags this one as needing verification, not sign-off.

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	8440 kg/m³	207 GPa	0.28	12.8 µm/m·°C	9.8 W/m·K	0.41 kJ/kg·°C	1.29 µΩ·m	1290–1350 °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

Offshore, seawater, chemical, aerospace

Approximate equivalents

Approximate equivalents: equivalents are a technical reference, not a substitution instruction, verify against project specification.

Approximate equivalents
Grade	Systems	Relationship	Note	Key difference
INCONEL 625	UNS/ASTM → EN	Same grade, another designation	Commonly cross-referenced alloy family.	Confirm heat treatment/product standard. Compared designation: 2.4856 / NiCr22Mo9Nb.

Common questions

01What is the density of INCONEL 625?: 8440 kg/m³ — the figure the weight calculators on this site use for INCONEL 625. The value is Special Metals / nickel alloy datasheets’s.
02What is the chemical composition of INCONEL 625?: C ≤ 0.1, Si ≤ 0.5, Mn ≤ 0.5, P ≤ 0.015, S ≤ 0.015, Cr 20–23, Ni ≥ 58, Mo 8–10, 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 INCONEL 625?: Tensile ≥ 827 MPa, Yield ≥ 414 MPa, Elongation min ≥ 30 % — ASTM B443/vendor reference, Plate/Sheet, Solution annealed. Those are the standard’s requirements; the mill test certificate governs the metal delivered.
04What is INCONEL 625 used for?: Offshore, seawater, chemical, aerospace