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List of Alloys & profiles

List of Alloys & profiles

Alloy Wire International

Datasheet: Inconel® 625

Inconel® 625

A Nickel-Chromium-Molybdenum alloy with excellent corrosion resistance in a wide range of corrosive media, being especially resistant to pitting and crevice corrosion. Inconel® 625 provides resistance to stress corrosion cracking to chloride ions, making it a favourable choice for sea water applications. The alloy also provides commendable oxidation resistance, with its high strength a result of the stiffening combination of Molybdenum and Niobium on the alloy’s Nickel-Chromium base.

Available in all profile options

Inconel® 625 - Alloy Wire International 1

Key Features

Inconel® 625 offers the following key features:

Excellent corrosion resistance in a wide range of corrosive media
Especially resistant to pitting and crevice corrosion
Good for sea water applications

Typical Applications

Inconel® 625 is known to be suitable for the following applications:

Marine Industries
Aerospace Industries
Chemical Processing
Nuclear Reactors
Pollution Control


Designations

W.NR 2.4856
UNS N06625
AWS 012

Specifications

AMS 5666
ASTM B446
BS 3076 NA 21
ISO 15156-3
(NACE MR 0175)

Chemical Composition

The chemical composition of Inconel® 625 is indicated in the table below:

ElementMin %Max %
C0.10
Mn0.50
Si0.50
P0.015
S0.015
Cr20.0023.00
Co1.00
Mo8.0010.00
Fe5.00
Al0.40
Ti0.40
Ni58.00
Nb/Cb3.154.15
Ta0.05
Cu0.5

Alloy Details

Inconel® 625 density, melting point, coefficient of expansion, modulus of rigidity, and elasticity is indicated in the table below:

DensityMelting PointCoefficient of ExpansionModulus of RigidityModulus of Elasticity
8.44 g/cm³1350 °C12.8 μm/m °C (20 – 100 °C)79 kN/mm²205.8 kN/mm²
0.305 lb/in³2460 °F7.1 x 10-6 in/in °F (70 – 212 °F)11458 ksi29849 ksi

Heat treatment of finished parts

The typical heat treatment of Inconel® 625:

Condition as supplied by AWITypeTemperatureTimeCooling
Annealed or Spring TemperStress Relieve260 – 370°C  (500 – 700°F)0.5 – 1hrAir

Properties

The typical mechanical properties of Inconel® 625:

Annealed
Approx. tensile strength< 1050 N/mm²< 152 ksi
Approx. operating temperature -200 to +340 °C-330 to +645 °F
Spring Temper
Approx. tensile strength1300 – 1600 N/mm²189 – 232 ksi
Approx. operating temperatureup to +200 °Cup to +395 °F

The above tensile strength ranges are typical. If you require different please ask.

*Trade name of Special Metals Group of Companies