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| Equal Grade: | ULTIMET, R31233 | Form Of Supply: | Rod, Forging |
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| Spec: | ASTM B815 | Applications: | Agitators, Blenders, Bolts, Dies, Extruders, Fan Blades, Filters, Glass Plungers, Nozzles, Pumps, Rolls, Screw Conveyors, And Valve Parts |
| Density: | 8.47 G/cm3 | Melting Range: | :2430 - 2470 °F (1332 - 1354 °C) |
| High Light: | ultimet alloy rod,R31233 alloy rod,astm b815 rod |
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Ultimet alloy(UNS R31233) is a cobalt-chromium-nickel-molybdenum-tungsten alloy for wear applications and general corrosion service. ASTM B815 covers the alloy in form of rod. The requirements for the chemical composition hardness and tolerance, tensile strength, yield strength, and elongation are specified.
Ultimet is a STELLITE alloy-like wear resistance and HASTELLOY alloy-like corrosion resistance in a single, highly weldable material.
ULTIMET alloy (UNS R31233) provides a unique blend of properties. From a wear standpoint, it behaves like the STELLITE® alloys with lower carbon contents. From a corrosion standpoint, it possesses many of the attributes of the C-type and G-type HASTELLOY® materials, in particular outstanding resistance to chloride-induced pitting and crevice corrosion. Its mechanical and welding characteristics are much closer to those of the HASTELLOY® alloys than those of the STELLITE® alloys, whose low ductilities can be problematic.
While ULTIMET® alloy has been used successfully in the form of wrought products, its largest applications have involved weld overlays, made with solid wire consumables and arcwelding processes such as GMAW (MIG) and GTAW (TIG).
Chemical composition of ULTIMET
| Element | B | C | Cr | Fe | Mn | Mo | N | Ni | P | S | Si | W | Co |
| Weight(%) | 0.015 max | 0.02-0.10 | 23.5-27.5 | 1.0-5.0 | 0.1-1.5 | 4-6 | 0.03-0.12 | 7-11 | 0.030 | 0.020 | 0.05-1.00 | 1-3 | Balance |
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