HS 188 Solution Treated

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HS 188 is a cobalt-based superalloy with tungsten and chromium additions, designed for high-temperature structural applications in gas turbines and aerospace engines requiring sustained performance above 1000°C. Solution-treated condition provides optimal balance of strength and ductility through controlled heat treatment, suitable for sheet applications where creep resistance and thermal fatigue resistance are critical performance requirements.

aerospacestructural

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HS 188/HS 188 Solution Treated

Units:

si imperial

Property OverviewNormalized to typical max values

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Property	Value	Unit	Conditions
Compressive Modulus(Ec)	33,600	ksi	22°C · Sheet
Compressive Yield Strength(Fcy)2 entries	55.00	ksi	22°C · Sheet · Solution Treated · AMS 5608 · LT · t=<0.020 in
↳	55.00	ksi	22°C · Sheet · Solution Treated · AMS 5608 · LT · t=0.020-0.187 in
Elongation at Break(εf)2 entries	40.00	-	22°C · Sheet · Solution Treated · AMS 5608 · LT · t=<0.020 in
↳	45.00	-	22°C · Sheet · Solution Treated · AMS 5608 · LT · t=0.020-0.187 in
Poisson's Ratio(ν)	0.3100	-	22°C
Shear Modulus(G)	12,800	ksi	22°C · Sheet
Ultimate Shear Strength(Fsu)2 entries	111	ksi	22°C · Sheet · Solution Treated · AMS 5608 · t=<0.020 in
↳	111	ksi	22°C · Sheet · Solution Treated · AMS 5608 · t=0.020-0.187 in
Ultimate Tensile Strength(σUTS)4 entries	125	ksi	22°C · Sheet · Solution Treated · AMS 5608 · L · t=<0.020 in
↳	125	ksi	22°C · Sheet · Solution Treated · AMS 5608 · L · t=0.020-0.187 in
↳	125	ksi	22°C · Sheet · Solution Treated · AMS 5608 · LT · t=<0.020 in
↳	125	ksi	22°C · Sheet · Solution Treated · AMS 5608 · LT · t=0.020-0.187 in
Yield Strength (0.2% offset)(σy)4 entries	57.00	ksi	22°C · Sheet · Solution Treated · AMS 5608 · L · t=<0.020 in
↳	57.00	ksi	22°C · Sheet · Solution Treated · AMS 5608 · L · t=0.020-0.187 in
↳	55.00	ksi	22°C · Sheet · Solution Treated · AMS 5608 · LT · t=<0.020 in
↳	55.00	ksi	22°C · Sheet · Solution Treated · AMS 5608 · LT · t=0.020-0.187 in
Young's Modulus(E)	33,600	ksi	22°C · Sheet

N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form, heat treatment, basis, or test environment.

Rows with are inherited from the base material

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3 interactive curves for this material

Stress-strain, S-N fatigue and environmental knockdown curves are free with an account.

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Property	Value	Unit	Conditions
CTE vs Temperature(α(T))	Curve (18 pts)	µin/in·°F	—
Specific Heat vs Temperature(Cp(T))	Curve (18 pts)	BTU/(lb·°F)	—
Thermal Conductivity vs Temperature(k(T))	Curve (18 pts)	BTU/(hr·ft·°F)	—

Rows with are inherited from the base material

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Property	Value	Unit	Conditions	Source
Density(ρ)	0.3240	lb/in³	22°C

Rows with are inherited from the base material

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Regulatory Screening

Environmental

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RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.

HS 188 Solution Treated

Mechanical Properties

Thermal Properties

Physical Properties

Regulatory Screening

Environmental

Export Control