21.3*2.77mm inconel 625 seamless pipes W.Nr 2.4856 thermowells
Inconel Alloy 625 (UNS designation N06625) is a Ni-Cr based superalloy that possesses high strength properties and resistance to elevated
temperatures. It also demonstrates remarkable protection against corrosion and oxidation. Its
ability to withstand high stress and a wide range of temperatures, both in and out of water,
as well as being able to resist corrosion while being exposed to highly acidic
environments makes it a fitting choice for nuclear and marine applications. Inconel 625 was developed in the 1960s with the purpose of
creating a material that could be used for steam-line piping. Some modifications were
made to its original composition that have enabled it to be even more
creep-resistant and weldable. Because of this, the uses of Inconel 625 have expanded into a
wide range of industries such as the chemical processing industry, and for marine and
nuclear applications to make pumps and valves and other high pressure equipment.
Some chemical properties of Inconel 625 include:
Inconel 625 was designed as a solid solution strengthened material
with no significant microstructure. This holds true at low and high temperatures, but
there is a region (923 to 1148 K) where precipitates form that are detrimental to the
creep properties, and thus the strength, of the alloy. Under any creep conditions
(high temperature with an applied stress), M23C6-type carbides form at the grain
tested at 973 K, γ” precipitates begin forming. These γ” phase
precipitates are ordered A3 B type with a composition of Ni3(Nb, Al, Ti) and a
tetragonal crystal structure. They form a disk-shaped morphology and are coherent with respect to
the matrix. When tested at 998 K, a δ-phase precipitate begins forming which
consist of Ni3(Nb, Mo) in an orthorhombic crystal structure. They form in a needle-like
morphology and are
incoherent with the matrix. Both of these precipitates can be
completely dissolved back into the matrix when the sample is heated 1148 K. This leads to the
ability to recover creep properties of the alloy to prolong the materials lifetime.
3.ASTM (American Society for Testing and Materials) for various
products made out of Inconel 625 are as follow:
|Pipe Seamless||Pipe Welded||Tube Seamless||Tube Welded||Sheet/Plate||Bar||Forging||Fitting||Wire|
Specifications and certifications include:
- AMS: 5599, 5666
- MS: 5837
- ASME: SB 443 Gr 1, SB 446 Gr 1
- ASTM: B 443 Gr 1, B 446 Gr 1
- EN: 2.4856
- ISO: 15156-3
- NACE: MR0175-3
- UNS: N06625
- Werkstoff: 2.4856
Heat Treatment Inconel 625 is usually strengthened by cold work,
with annealing at temperatures between 1,700 and 1,900F as required to remove
the effects of cold work. Although nominally a solid-solution alloy containing
intergranular and intragranular carbide precipitates, Inconel 625 is not responsive to
strengthening heat treatments. Solution heat treating at 2000 to 2200F dissolves almost all
of the secondary carbides.
The major effects of short-time annealing of hot-rolled bar
of standard composition are to affect reductions in tensile strength and
hardness.Typically, the annealing heat treatment most utilized for Inconel 625 is at 1800F.
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holiday . Pls email us during our holiday if u have any question
Do you provide free samples?
Yes, we can provide a free sample for testing,buyer should bear all
the shipping costs.
What is your payment terms?
If we have stocks for your demanded size, we can deliver within 3
For customised sizes and in quantity over100 kg (Some materials are
allowed MOQ 50 kg),we can guarantee delivery within 3 weeks or 25
Usually sample lead time is 7 days after payment has been
Our products series:
Inconel alloy: Inconel 600, 601, 617, X-750, 625,690, 718,825.
Incoloy alloy: Incoloy 800, 800H, 800HT, 825, 925.
Hastelloy alloy: HC-276, C-22, C-4, HB, B/2/3, X, N.
FeCrAl Alloy: OCr15Al5,1Cr13Al4, 0Cr21Al4, 0Cr21Al6, 0Cr25Al5,
NiCr Alloy: Cr20Ni80, Cr30Ni70, Cr20Ni35, Cr20Ni30, Cr15Ni60.
CuNi Alloy: NC003, NC010, NC012, NC015, NC020, NC025, NC030, NC040,
NC050, Constantan, 6J8/11/12/13/.
Welding wire: ERNiCrMo-3/4/13, ERNiCrFe-3/7, ERNiCr-3/7, ERNiCu-7,
Thermocouple alloy: K, J, E, T, N, S, R, B, KX, JX, EX, TX, NX.