NICKEL-CHROMIUM-MOLYBDENUM ALLOY

Inconel 625

Inconel 625 is a nickel-chromium-molybdenum alloy strengthened primarily by solid-solution effects from molybdenum and niobium. It combines high strength with excellent resistance to pitting, crevice corrosion and many aggressive environments.

ASTM specificationASTM B443Specified grade / UNSAlloy 625 N06625
MATERIAL OVERVIEW

Inconel 625 Information

Inconel 625 is a nickel-chromium-molybdenum alloy strengthened primarily by solid-solution effects from molybdenum and niobium. It combines high strength with excellent resistance to pitting, crevice corrosion and many aggressive environments.

Metallic winding and compatible ring components where service conditions are suitable.

Material specificationASTM B443
Specified grade / UNSAlloy 625 N06625
CHEMICAL COMPOSITION

Inconel 625 Chemical Composition

ASTM B443 · Grade-specific requirements

ASTM B443 chemical composition
Element / requirementValue
Ni %≥58.0
Cr %20.0–23.0
Mo %8.0–10.0
Fe %≤5.0
Nb + Ta %3.15–4.15
C %≤0.10
Mn %≤0.50
Si %≤0.50
P %≤0.015
S %≤0.015
Al %≤0.40
Ti %≤0.40
Co %≤1.0 if determined
MECHANICAL PROPERTIES

Inconel 625 Mechanical Properties

ASTM B443 · Grade-specific requirements

ASTM B443 mechanical properties
Product form / conditionTensile min (MPa)Yield min (MPa)Elongation min (%)Hardness
Grade 1 · Cold-rolled sheet / strip · Annealed82741430—
Grade 1 · Hot-rolled sheet / plate ≤2.75 in. (70 mm) · Annealed75837930—
Grade 1 · Cold-rolled plate ≤0.375 in. (9.5 mm) · Annealed75837930—
Grade 2 · Plate / sheet / strip · Solution annealed69027630—
SPECIFICATION REFERENCE

ASTM B443 Grade Reference

Alloy 625 N06625

The chemical and mechanical tables on this page use the ASTM B443 requirements for this grade, including the product conditions listed in the standard overview.

View the ASTM B443 comparison tables

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