Factory Supply Pure Nickel Round Tube Alloy 625 Uns6625 Inconel 625
Seamless Tubes/Pipe
ASTM / ASME SB 444 / UNS 6625 (INCONEL 625)
| Name | inconel 625 seamless tube |
| Standard | ASTM B163/ASME SB163,ASTM B165/ASME SB165,ASTM B167/ASME SB167,
ASTM B704/ASME SB704,ASTM B705/ASME SB705,etc. |
| Material | Alloy200(N02200),Alloy400(Monel400/H),Alloy800(Monel800/H),Alloy825(N08825),
Alloy625(Inconel 625),Alloy600,C-276,etc. |
| Type | Seamless/SML |
| O.D | 1.0-80mm |
| W.T | 0.02-20mm |
| Length | Accroding to customer requirements |
| Technique | Cold Finished (Cold Drawing and Cold Rolling), Hot Finished (Hot
Extrusion) |
| Ends | PE/Plain Ends, BE/Beveled Ends |
| Surface Treatment | Pickled,Passivation,Inside & Outside Mechanical Polishing, BA,
Electropolishing (EP) |
| Heat Treatment Condition | Solution Annealing and water rapid quenched, Bright Annealing |
| Test Requirement | Eddy Current Test, Hydrostatic Test, UT,Penetrant Test,Air
underwater pressure Test,
PMI Test, Spectro Test,Intergranular Corrosion Test,Sharpy Impact
Test,Hardness Test,
Tension Test (Elongation,Yield Strength,Tensile Strength),Flarring
Test etc. |
| Application | Heat Exchanger,Boiler,Gas and Fluid Transportation;Mechanical
Pipline;Engineering Projects;Petrochemical industry;Power Station |
| Capacity | 3000 tons/year |
| Package | In bundles, plywood cases, wooden cases with water-proof package,
etc. |
| Payment Terms | T/T, L/C |
| Main Market | Domestic Market, North America, Western Europe, South America,
Eastern Asia etc. |
Inconel 625 Typical application field as below
1. The Organic chemical process parts contain 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
% | Ni | Cr | Mo | NbTa | Te | Al | Ti | C | Mn | Si | Co | P | S |
| MIN | 58 | 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 |
| Density | 8.4 g/cm3 |
| Melting Point | 1290-1350 |
| Tensile Rm N/mm2 | Yield Strength RP0.2N/mm2 | Elongation A5 % | Brinell Hardness HB |
| 760 | 345 | 30 | ≤220 |
Other types of Nickel Alloy
ASTM / ASME SB 161 UNS 2200 ( NICKEL 200 )
ASTM / ASME SB 161 UNS 2201 (NICKEL 201 ),
ASTM / ASME SB 165 UNS 4400 (MONEL 400 )
ASTM / ASME SB 464 UNS 8020 ( ALLOY 20 / 20 CB 3 ),
ASTM / ASME SB 423 UNS 8825 INCONEL (825)
ASTM / ASME SB 167 / 517 UNS 6600 (INCONEL 600 )
ASTM / ASME SB 167 UNS 6601 ( INCONEL 601 ),
ASTM / ASME SB 622/619/626 UNS 10276 ( HASTELLOY C 276 )
| alloy | Ni | C | Mn | Fe | S | Si | Cu | Cr | Al | Ti | Nb | Mo |
| Nickel 200 | 99.5 | 0.08 | 0.2 | 0.2 | 0.005 | 0.2 | 0.1 | -- | -- | -- | -- | -- |
| Nickle 201 | 99.5 | 0.01 | 0.2 | 0.2 | 0.005 | 0.2 | 0.1 | -- | -- | -- | -- | -- |
| Monel 400 | 66.5 | 0.2 | 1.0 | 1.2 | 0.01 | 0.2 | 31.5 | -- | -- | -- | -- | -- |
| Monel 401 | 42.5 | 0.05 | 1.6 | 0.4 | 0.008 | 0.1 | | -- | -- | -- | -- | -- |
| Monel K500 | 66.5 | 0.1 | 0.8 | 1.0 | 0.005 | 0.2 | 29.5 | -- | 2.7 | 0.5 | -- | -- |
| Inconel 600 | 76.0 | 0.08 | 0.5 | 8.0 | 0.006 | 0.2 | 0.2 | 15.5 | -- | -- | -- | -- |
| Inconel 601 | 60.5 | 0.05 | 0.5 | 14.1 | 0.007 | 0.2 | 0.5 | 23.0 | 1.4 | -- | -- | -- |
| Inconel 718 | 52.5 | 0.04 | 0.2 | 18.5 | 0.008 | 0.2 | 0.2 | 19.0 | 0.5 | 0.9 | 5.1 | 3.0 |
| Inconel X-715 | 73.0 | 0.04 | 0.5 | 7.0 | 0.005 | 0.2 | 0.2 | 15.5 | 0.7 | 2.5 | 1.0 | -- |
| Incoloy 800 | 32.5 | 0.05 | 0.8 | 46.0 | 0.008 | 0.5 | 0.4 | 21.0 | 0.4 | 0.4 | -- | -- |
| Incoloy 803 | 32.0-37.0 | 0.06-0.10 | ≤1.50 | | ≤0.015 | ≤1.0 | ≤0.75 | 25.0-29.0 | 0.15-0.60 | 0.15-0.6 | -- | -- |
| Incoloy 825 | 42.0 | 0.03 | 0.5 | 30.4 | 0.02 | 0.2 | 2.2 | 21.5 | 0.1 | 0.9 | -- | 3.0 |
Characteristic
1. Excellent corrosion resistance of different kinds of media in
both oxidation and reduction environments.
2. Excellent resistance of pitting and crevice corrosion, and won't
happen stress corrosion cracking because of chloride.
3. Excellent resistance of the inorganic acid corrosion
performance, such as nitric acid, phosphoric acid, sulfuric acid,
hydrochloric acid and the mixture of sulfuric acid and hydrochloric
acid.
4. Excellent corrosion resistance of different kinds of inorganic
acid mixture performance.
5. Good corrosion resistance of a variety of concentrations of
hydrochloric acid when the temperature up to 40° C.
6. Good machining and welding, no weld cracking sensitivity.
7. Have pressure vessel authentication for the wall temperature
between -196 ~ 450° C.
8. Apply for the highest standard lever VII of acidic environment
by the NACE ( MR-01-75) authorized.
Inconel 625 Metallurgical structure
Inconel 625 is face-centered cubic lattice structure. Dissolve out
the carbon granule and instability quaternary phase, then change it
to stability Ni3 (Nb, Ti) trimetric lattice around 650° C after a
long time heat preservation. Nickel-chromium content will strength
the mechanical performance in the state solution while suppress the
plasticity.
Inconel 625 Corrosion resistance
625 own a very good corrosion resistance in many media, especially
with excellent resistance to pitting, crevice corrosion,
intercrystalline corrosion, and erode in oxide, also good
resistance to inorganic acid corrosion, such as nitric acid,
phosphoric acid, sulfuric acid and hydrochloric acid. 625 can
resist the alkali and organic acid corrosion in the oxidation and
reduction environment. Effect resists the chloride reduction stress
corrosion cracking. Normally no corrosion in the sea-water and
industry environments since high corrosion resistance to the
sea-water and salting liquid, as well as in high temperature,
without sensitivity during welding. 625 have the resistance to
oxidation and carbonizing in the static and cycle environments,
also hacve the resistance the chlorine corrosion.
Inconel 625 Application field
Soften annealing low carbon alloy 625 widely used in the chemical
process industry, good corrosion resistance and high strength made
it an good choice for structural parts. 625 have application in
sea-water for local mechanical stress attach.
