Cobalt Alloy 188/ Haynes Alloy 188/ Udimet 188

Technical Data Sheet

Chemical Composition Limits

Weight %

Alloy 188

0.05-0.15

1.25 max

0.20-0.50

0.02 max

0.015 max

20-24

13-16

0.02-0.12

0.015

3 max

Bal

Alloy 188 is a cobalt-based alloy. Due to Alloy 188's unique combination of properties it has excellent high temperature strength and oxidation resistance up to 2100°F (1150ºC). Alloy 188 is used in various applications from chemical and nuclear industries to transition ducts, combustor cans, spray bars, flame-holders and afterburner liners in jet engines.

Typical Mechanical Properties

Material	Condition	Yield Strength (0.2% Offset)		Tensile Strength		Elongation (%)	Hardness
		ksi	MPa	ksi	MPa
Alloy 188 Bar	Solution Treated	55	379	125	862	45	≤302HB

Availability
Alloy 188 is available in Sheet, Bar, Plate, Tube, Forgings Stock, Welding Wire. For all stock availability contact Sales.

Specifications
AMS 5608 Sheet, Strip and Plate
AMS 5772 Bars, Forgings and Rings
AMS 5801 Wire
UNS R30188
Trade Names: Haynes 188, UDIMET 188

Disclaimer
Every effort is made to ensure that technical specifications are accurate. However, technical specifications included herein should be used as a guideline only. All specifications are subject to change without notice.

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