625 Alloy
UNS N06625
Trade Name: INCONEL® Alloy 625
A nickel-chromium-molybdenum alloy with an addition of niobium that acts with the molybdenum to stiffen the alloy's matrix and thereby provide high strength without a strengthening heat treatment. The alloy resists a wide range of severely corrosive environments and is especially resistant to pitting and crevice corrosion. Used in chemical processing, aerospace and marine engineering, pollution-control equipment, and nuclear reactors. Standard product forms are round, flats, forging stock, extruded section, pipe, tube, plate, sheet, strip, and wire. (Information provided by Special Metals Corporation)
| ASME Boiler and Pressure Vessel Specifications | |||||||
| Sheet/ Plate | Forgings | Weld Fittings | Rod and Bar | Tubing - Welded/ Smls | Pipe - Welded/ Smls | Bolting- Bolts/ Nuts | Filler Metals |
| SB443 | SB564 | SB366 | SB446 | SB704/ SB444 | SB705/ SB444 | SB466-625/ SB466-625 | ERNiCrMo-3 |
| ASME Boiler and Pressure Vessel Chemical Requirements for Sheet/Plate | ||||||||||||
| Note: all percentages max unless otherwise specified | ||||||||||||
| C | Mn | Si | P | S | Cr | Cb + Nb | CoB | Mo | Fe | Al | Ti | Ni |
| 0.10 | 0.50 | 0.50 | 0.015 | 0.015 | 20.0-23.0 | 3.15-4.15 | 1.0 | 8.0-10.0 | 5.0 | 0.40 | 0.40 | 58.0A |
| ASME Boiler and Pressure Vessel Mechanical Properties for Sheet/Plate | |||
| Tensile Strength, Min ksi | Yield Strength, (0.2% offset), Min, ksi | Min. Elongation in 2", % | Density lb/in³ |
| 80 | 35 | 30.0 | 0.306 |
Notes:
A - Element shall be determined arithmetically by difference
B - If determined
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