Nickel Alloy Seamless Pipe ASTM B165UNS NO4400 for Petrochemical Application
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Inconel Alloy 625
The alloy 625 tubes, which are widely used for superheater or heat exchanger tubing, are generally manufactured as per ASTM B444 (ASME SB-444) UNS N06625. It is a typical nickel-chromium-molybdenum-columbium alloy, which is commercially known as a proprietary brand of “Inconel alloy 625“. The cold-worked alloy 625 seamless tubes may be furnished in two grades of different heat-treated conditions: Grade 1 (annealed) – tubes are normally employed in service temperatures up to 1100°F (593°C); Grade 2 (solution annealed) – material is normally employed in service temperatures above 1100°F (593°C) when resistance to creep and rupture is required. Generally, unless otherwise specified, Grade 1 will be supplied.
The chemical composition of the material should adhere to the specification that are specified in ASTMB444 specifications, like chemicalcomposition limit specifed for Nickel, Copper, Columbium, Chromium,Carbon, Manganese, Silicon, Phosphorus, Sulfur,Tantalum, Cobalt,Molybdenum, Iron,Aluminum, and Titanium.
Chemical Composition
| Element | Percentage |
| Carbon | 0.010 max |
| Manganese | 0.50 max |
| Phosphorus | 0.015 max |
| Sulfur | 0.015 max |
| Silicon | 0.50 max |
| Chromium | 20.00 - 23.00 |
| Nickel | Balance |
| Molybdenum | 8.00 - 10.00 |
| Iron | 5.00 max |
| Titanium | 0.40 max |
| Aluminum | 0.40 max |
| Tantalum | 0.05 max |
Types of product
| Inconel 625(UNS N06625) Nickel Alloy Tube |
| Outside Diameter | 10.3-426mm |
| Wall Thickness | 1.24-40.49mm |
| Length | Up to 25m |
| Standard | ASTM B163, ASTM B167, ASTM B407, ASTM B444, ASTM B622, ASTM B677, ASTM B829,etc. |
| Hastelloy Series | Hastelloy B(UNS N10001), Hastelloy B-2(UNS N10665), Hastelloy B-3(UNS N10675), Hastelloy C-4(UNS N06455), Hastelloy C-22(UNS N06022), Hastelloy C-276(UNS N10276), Hastelloy C-2000(UNS N06200), Hastelloy G-30(UNS N06030), Hastelloy G-35(UNS N06035). |
| Haynes Series | Haynes 230(UNS N06230), Haynes 556(UNS R30556). |
| Inconel Series | Inconel 600(UNS N06600), Inconel 601(UNS N06601), Inconel 617(UNS N06617), Inconel 625(UNS N06625), Inconel 690(UNS N06690), Inconel 718(UNS N07718). |
| Incoloy Series | Incoloy 020(UNS N08020), Incoloy 800(UNS N08800), Incoloy 800H(UNS N08810), Incoloy 800HT(UNS N08811), Incoloy 825(UNS N08825), Incoloy 925(UNS N09925). |
| Monel Series | Monel 400(UNS N04400). |
| Nickel Series | Nickel 200(UNS N02200), Nickel 201(UNS N02201). |
| High Temperature Alloys | GH2132,GH3030,GH3039,GH3128,GH3044,GH4080A. |
| Delivery Condition | Pickled&Annealed, Polished, Bright Annealed. |
| Technique | Seamless |
| Application | National defense, astronautics, transportation, equipment manufacture, shipping, petroleum, nuclear power industry, oil and gas industry, and chemical industry etc. |
| Marking | LOGO, Standard, Grade, Size, Heat Number. |
| Package | Woven bag, wooden cases or as per customer's requirement. |
Chemical Properties
| Grade | C | Mn | Si | S | Cu | Fe | Ni | Cr | Al | Ti |
| ASTM B704 | 0.05 max | 1.00 max | 0.05 max | 0.03 max | 1.50 – 3.00 | 22.00 min | 38.00 – 46.00 | 19.50 – 23.50 | 0.02 max | 0.06 – 1.20 |
Mechanical Strength
| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| ASTM 704 | 8.14 g/cm3 | 1400 °C (2550 °F) | Psi – 80,000 , MPa – 550 | Psi – 32,000 , MPa – 220 | 30 % |
| Grade | UNS No | Old British | Euronorm | GOST | Japanese JIS |
| BS | En | No | AFNOR |
| Inconel 625 | N06625 | NA 21 | NiCr22Mo9Nb | 2.4856 | NC22DNB4M | ХН75МБТЮ | NCF 625 |
Product Tags:
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Nickel Alloy Seamless Pipe ASTM B165 UNS NO4400 for Petrochemical Application Images
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