UNS R30188 — The cobalt-base combustion alloy — strength and sulfidation resistance where nickel alloys soften.
Nominal published values for the annealed condition. Certified heat lots ship with actual MTC values.
| Property | Value |
|---|---|
| Density | 9.13 g/cm³ |
| Min. yield strength (annealed) | 445 MPa |
| Min. tensile strength (annealed) | 960 MPa |
| Max service temperature | 1095 °C |
| Nominal chemistry | Co bal. · Ni ~22% · Cr ~22% · W ~14% |
0.05 – 15 mm · TIG tubes · MIG spools · electrodes · vacuum sealed · spooled · AWS + EN 10204 3.1
Full wires & electrodes page →AWS A5.14 · AWS A5.11 · AWS A5.9 · ASTM B166 · ASTM B164 · ASTM B574
Confirm your standard →Pipe, fittings, bar, sheet, wire and forgings — consolidated into one PO with matching heats.
Haynes 188 grade hub →Standard sizes per the wires & electrodes range (see supply range above) are stocked or on a frequent smelting schedule for Haynes 188. Non-standard dimensions are made to order — confirm with your inquiry.
Every heat ships with EN 10204 3.1 MTC: ladle + product chemistry, mechanical results, dimensional data and heat number. Third-party witnessed 3.2 available on request.
Typical uses: Gas turbine transition ducts; Combustion liners. If your medium, temperature or pressure differs, our metallurgists verify grade selection free of charge before quoting.
Dimensions, quantity, standard — that is all we need. A named metallurgist replies with pricing, lead time and MTC sample.