Inconel 625 UNS N06625/2.5856 ASTM B444 Seamless Nickel Alloy Tubing

Inconel 625 UNS N06625/2.5856 ASTM B444 Seamless Nickel Alloy Tubing

Model No.:

UNSNO6625; Alloy 625; Nickel 625; W.Nr 2.4856


1.Available Shapes: Bar,pipe wire,strip,spring,bolt,fititings

Product Detail

Product Tags

Inconel 625 Tubing

Inconel 625 Inconel 625 is a nickel-base alloy used both for its high strength and outstanding aqueous corrosion resistance. The strength of alloy 625 is primarily a solid solution effect from molybdenum and columbium, Alloy 625 is used in chemical processing, aerospace and marine engineering oil & gas, pollution control equipment and nuclear reactors.

The Trade Name of Inconel 625: UNSNO6625; Alloy 625; Nickel 625; W.Nr 2.4856

Inconel 625 Tubing Chemical composition

Alloy % Ni Cr Mo Nb Fe Al Ti C Mn Si Cu P S
625 Min. balance 20 8 3.15

Max. 23 10 4.15 5 0.4 0.4 0.1 0.5 0.5 0.5 0.015 0.015

Inconel 625 Tubing Pysical properties


8.4 g/cm3

Melting point

1290-1350 ℃

Inconel 625 Tubing minimum mechanical properties in the room temperature

Alloy Status

Tensile strength
Rm N/mm²

Yield strength

RP0.2 N/mm²

A5 %

Brinell hardness

Solution Treatment 





Inconel 625 Specification:

AMS 5599, AMS 5666, AMS 5837
ASME SB 443 Gr 1, ASME SB 446 Gr 1
ASTM B 443 Gr 1, ASTM B 446 Gr 1
EN 2.4856
ISO 15156-3
NACE MR0175-3
UNS N06625
Werkstoff 2.4856

Manufacture Process: Vacuum Melting-ESR-Forging-heat treatment-rough turn

Surface Condition: Bright or Pickling Pipe

Heat treatment: without heattreament. Age (precipitation) hardened,solution annealed

Dimension : OD 6mm to 300mm, Length within 6000mm

Inconel 625 Tubing Application Field As Below:                                     

1. The Organic chemical process parts contains chloride, especially in the use of acid chloride catalyst.

2. The digester and bleacherin the use of paper pulp and paper making industry.

3. Absorption tower, re-heater,gas import board, fan, blender, fair water fin, flue and so on for using in flue gas desulfurization system.

4. The equipment and parts in the use of acidic gas environments.

5. Acetic acid and anhydride reaction generator
6. Sulfur acid cooling


  • Previous:
  • Next:
  • Send your message to us:

    Write your message here and send it to us


    WhatsApp Online Chat !