ASTM B818
This specification covers cobalt-chromium-nickelmolybdenum- tungsten alloy UNS R31233 in the form of rolled plate, sheet, and strip for wear applications and general corrosion service.This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to become familiar with all hazards including those identified in the appropriate Material Safety Data Sheet for this product/material as provided by the manufacturer, to establish appropriate safety and health practices, and determine the applicability of regulatory limitations prior to use.
Chemical Properties
| Boron | Carbon | Chromium | Iron | Manganese | Molybdenum | Nitrogen | Nickel | Phosphorous | Sulfur | Silicon | Tungsten | Cobalt |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.015 max | 0.02–0.10 | 23.5–27.5 | 1.0–5.0 | 0.1–1.5 | 4.0–6.0 | 0.03–0.12 | 7.0–11.0 | 0.030 max | 0.020 max | 0.05–1.00 | 1.0–3.0 | RemainderA |
Mechanical Properties
|
Tensile Strength, min, ksi (MPa) |
Yield Strength, min, ksi (MPa) |
Elongation in 2 in. (50.8 mm) or 4DA min % |
|---|---|---|
| 130 (896) | 55 (379) | 15 |
