Butt Weld Fittings SB366 Inconel 625 (UNS NO6625), 90 DEG. ELBOW ,
45 DEG. ELBOW , CAP, REDUCE , TEE
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 has excellent weldability and is frequently
used to weld AL-6XN® alloy. Matching filler metals are also used to
join dissimilar metals.
Chemistry
| Cr | Ni | Mo | Co | Cb+Ta | Al | Ti | C | Fe | Mn | Si | P | S |
| MIN | 20.0 | - | 8.0 | - | 3.15 | - | - | - | - | - | - | - | - |
| MAX | 23.0 | Balance | 10.0 | 1.0 | 4.15 | 0.4 | 0.4 | 0.1 | 5.0 | 0.5 | 0.5 | 0.015 | 0.015 |
Specifications
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
Inventory
625 Plate, 625 Round Bar, 625 Sheet, 625 Welding Products
Common Trade Names
Inconel® 625, Alloy 625, Nickel 625
Features
· High creep-rupture strength
· Oxidation resistant to 1800°F
· Good fatigue resistance
· Excellent weldability
· Outstanding resistance to chloride pitting and crevice corrosion
· Immune to chloride ion stress corrosion cracking
· Resistant to seawater under both flowing and stagnant conditions
and under fouling
Applications
· Aircraft ducting systems
· Jet engine exhaust systems
· Engine thrust-reverser systems
· Bellows and expansion joints
· Turbine shroud rings
· Flare stacks
· Seawater components
· Chemical process equipment handling mixed acids both oxidizing
and reducing.
Physical Properties
Density: 0.305 lb/in 3
Melting Point: 2350-2460°F
| Temperature, °F | 70 | 400 | 600 | 800 | 1000 | 1200 | 1400 | 1600 |
| Coefficient* of Thermal Expansion, in/in°F x 10 -6 | - | 7.3 | 7.4 | 7.6 | 7.8 | 8.2 | 8.5 | 8.8 |
Thermal Conductivity
Btu • ft/ft2 • hr • °F | 5.7 | 7.2 | 8.2 | 9.1 | 10.1 | 11.0 | 12.0 | 13.2 |
| Modulus of Elasticity, Dynamic psi x 10 6 | 30 | 28 | 28 | 27 | 26 | 24 | 23 | - |
* 70°F to indicated temperature.
Mechanical Properties
Representative Tensile Properties, Bar
| Temperature,°F | 70 | 400 | 600 | 800 | 1000 | 1200 | 1400 | 1600 |
| Ultimate Tensile Strength, ksi | 144 | 134 | 132 | 132 | 130 | 119 | 78 | 40 |
| 0.2% Yield Strength, ksi | 84 | 66 | 63 | 61 | 61 | 60 | 59 | 39 |
| Elongation, % | 44 | 45 | 42.5 | 45 | 48 | 34 | 59 | 117 |
Typical Rupture Strength Bar, Stress to Rupture at Indicated Time
| Temperature, °F | 1200 | 1300 | 1400 |
| 100 Hours, ksi | 59 | 34 | 18 |
| 1,000 Hours, ksi | 43 | 23 | 12 |
Inconel Buttweld Fittings are available in different grades of the
super alloy, as follows:
| Grade | UNS | W.Nr. | Trade Name |
| Inconel 600 | N06600 | 2.4816 | Inconel 600®, Nickelvac® 600, Ferrochronin® 600 |
| Inconel 601 | N06601 | 2.4851 | Inconel 601®, Pyromet® 601, Nicrofer® 601 |
| Inconel 617® | N06617 | 2.4663 | Inconel 617®, Nicrofer® 617 |
| Inconel 625 | N06625 | 2.4856 | Inconel 625®, Chornin® 625, Altemp® 625, Nickelvac® 625, Haynes®
625 Nicrofer® 6020 |
| Inconel | N07718 | 2.4668 | Inconel 718®, Nicrofer® 5219, Alvac® 718, Haynes® 718, Altemp® 718 |
| Inconel X 750 | N07750 | 2.4669 | Inconel X750®, Haynes X750®, Pyromet® X750, Nickelvac®X750,
Nicorros® 7016 |
| Incoloy 800 | N08800 | 1.4876 | Incoloy 800®, Ferrochronin® 800, Nickelvac® 800, Nicrofer® 3220 |
| Incoloy 800H | N08810 | 1.4876 | Incoloy 800H®, Ferrochronin® 800, Nickelvac® 800, Nicrofer® 3220 |
| Incoloy 800HT | N08811 | 1.4876 | Incoloy 800HT®, Ferrochronin® 800, Nickelvac® 800, Nicrofer® 3220 |
| Incoloy 825 | N08825 | 2.4858 | Incoloy 825®, Nickelvac® 825, Nicrofer 4241® |
Types:Elbow - 90 Deg. & 45 Deg., Tee - Equal & Reducing, Union, Cross,
Coupling - Full & Half, Socket Reducing, CAP, Plug-Hex & Square,
Nipples (Hex/Reducing), Bushing, Sockolet, Weldolet, Thredolet,
Elbolet, Nipolet.
