At Harsh Steel Nickel 188 is available in Cobalt Alloy 188 wire, Cobalt Alloy 188 Round bar, Cobalt Alloy 188 Forged bar, Cobalt Alloy 188 hex bar, Cobalt Alloy 188 Flat bar, Cobalt Alloy 188 Circles, Cobalt Alloy 188 Ring, Cobalt Alloy 188 Tube, Cobalt Alloy 188 seamless Pipe, Cobalt Alloy 188 Welded / ERW Pipe, Cobalt Alloy 188 Sheet, Cobalt Alloy 188 Plate, Cobalt Alloy 188 Coil, Cobalt Alloy 188 Flanges, Cobalt Alloy 188 fasteners, Cobalt Alloy 188 Socket weld Fittings, Cobalt Alloy 188 ferrule fittings, Cobalt Alloy 188 Buttweld fittings Like cap, elbow, tee, Reducer. For all stock availability contact Sales.
| Alloy Name | Trade Name | UNS No. | American Specs |
| Nickel Alloy 188 | Haynes 188 Udimet 188 |
UNS R30188 | AMS 5608 Sheet, Strip and Plate AMS 5801 Welding Wire |
| Chemical Composition Limits | ||||||||||||
| Weight % | C | Mn | Si | P | S | Cr | Ni | W | La | B | Fe | Co |
| Alloy 188 | 0.05-0.15 | 1.25 max | 0.20-0.50 | 0.02 max | 0.015 max | 20-24 | 20-24 | 13-16 | 0.02-0.12 | 0.015 | 3 max | Bal |
Haynes 188 / Udimet alloy 188 is a cobalt based nickel-chromium-tungsten alloy with a small addition of lanthanum to give a very protective scale. Alloy 188 combines excellent high-temperature strength with good resistance to both oxidizing environments up to 2000°F and to sulfate deposit hot corrosion. Cobalt Alloy 188 has good forming characteristics and is capable of being forged, hot worked or cold worked, althoug it does work-harden very rapidly so frequent intermediate annealing treatments are recommend for complex forming operations. Cobalt Alloy 188 is supplied solution heat treated at 2150°F and rapid air or water quenched to attain optimum properties. A combination of good fabricability and weldability makes Cobalt Alloy 188 suitable for a wide number of applications, particularly in gas turbine components such as combustors, flame holders, liners and tranistion ducts.
| Material | Temp°F | Yield Strength (0.2% Offset) min | Tensile Strength min | Elongation (%) | Hardness | ||
| ksi | MPa | ksi | MPa | ||||
| Cobalt Alloy 188 Extruded Bar Solution Treated (AMS 5772) | RT | 55 | 379 | 125 | 862 | 45 | ≤302HB |
| Material | Temp°F | Thickness (Inches) | Yield Strength (0.2% Offset) min | Tensile Strength min | Elongation (%) | Hardness HRC | ||
| ksi | MPa | ksi | MPa | |||||
| Cobalt Alloy 188 Sheet Solution Treated (AMS 5608) | RT | ≤0.020" | 55 | 379 | 125 | 862 | 40 | - |
| Cobalt Alloy 188 Sheet Solution Treated (AMS 5608) | RT | ≤0.020" | 55 | 379 | 125 | 862 | 45 | - |
| Cobalt Alloy 188 Sheet Solution Treated (AMS 5608) | 1200 | ≤0.020" | 36 | 248 | 90 | 621 | 40 | - |
| Cobalt Alloy 188 Sheet Solution Treated (AMS 5608) | 1200 | ≥0.020" | 36 | 248 | 90 | 621 | 50 | - |
Specifications
AMS 5608 Sheet, Strip and Plate
AMS 5772 Bars, Forgings and Rings
AMS 5801 Welding Wire
UNS R30188
GE B50A712
GE B50TF59
GE B50TF74
Trade Names: Haynes 188, UDIMET 188
Harsh steel is a major stockist and Exporter of Nickel Alloy 188 to many countries of the world such as Singapore, Brisbane, Sydney, Melbourne, Australia, Houston, TX, San Diego, San Francisco, Atlanta, USA, Brentford, United Kingdom, Phoenix, Ireland, New Zealand and Canada, Western Australia , Queensland, New South Wales, South Australia, Victoria, Australian Capital Territory, Tasmania, Northern Territory, Ontario, British Columbia, Yukon Territory, Alberta, Manitoba, Saskatchewan, Newfoundland, Prince Edward Island, New Brunswick, Nova Scotia, Eastern Cape, Gauteng, Kwazulu-Natal, Western Cape, England, Scotland, Wales, Northern Ireland, Lagos, Abuja Capital Territory, Vadodara, Mumbai, Chennai, New Delhi, Mahape, Gurgaon, Noida, Bangalore, Coimbatore, Cochin, Ash Sharqiyah, Ar Riyad, Makkah, Dhahran, Riyadh, Jiddah, Jeddah, Masqat, Kwazulu-Natal, Gauteng, Western Cape, Free State, Eastern Cape, Alberta, Saskatchewan, British Columbia, Newfoundland, New Brunswick, Manitoba, Ontario, Nova Scotia, Quebec, Calgary, Edmonton, Vancouver, Toronto, Birmingham, Brentford, Manchester, Bristol, Sheffield, Milton Keynes, London, Poplar, Edinburgh, Thames Ditton.