Alloy 188

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Harsh Steel

Siddhivinayak Co Op Hsg Soc(Durgadas Building), Shop No 3, Ground floor, Ardeshir Dadi cross Lane, Near CP Tank, Mumbai, Maharashtra - 400004, India

Mobile : +91-7666559665

Call Us : 08048066374




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.

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.

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    


Stock availability of contact Sales

Alloy Name Trade Name UNS No. American Specs Other
Nickel Alloy 188 Haynes 188
Udimet 188
UNS R30188 AMS 5608 Sheet, Strip and Plate
AMS 5801 Welding Wire
UNS S43100
DMS-1565

Technical Data Sheet

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
Alloy 430 0.12 max 1 1 0.04 0.03 16-18 0.75 max 0.5 0.5 0.05 0.05  

Typical Mechanical Properties 01

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

Typical Mechanical Properties 02

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 -



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