Home > Stainless Steel AM 355

AM 355 is a chromium-nickel-molybdenum stainless steel which can be hardened by martensitic transformation and/or precipitation hardening. Depending upon the heat treatment, AM 355 may have an austenitic structure and formability similar to other austenitic stainless steels or a martensitic structure and high strength comparable to other martensitic stainless steels. High strengths may also be attained by cold working.

Corrosion resistance of the alloy is superior to that of other quenched-hardenable martensitic stainless steels and approaches the capabilities of chromium-nickel austenitic stainless steels. AM 355 is normally supplied in either the annealed or equalized and over-tempered condition. It has been used for gas turbine compressor components, blades, discs, rotors and shafts and similar parts where high strength is required at intermediate elevated temperatures.

Chemical Properties

Applicable Specifications:

AMS 5743 – Steel, Corrosion and Heat Resistant, Bars and Forgings

AMS 5744 – Steel, Corrosion and Heat Resistant, Bars and Forgings

Select AMS Number:

AMS Number	Alloy	Type	UNS	Cross Ref. Spec	Misc./Shape
AMS 5547	AM 355	Stainless Steel	S35500
AMS 5547 Sheet	AM 355	Stainless Steel	S35500	-	Sheet
AMS 5547 Strip	AM 355	Stainless Steel	S35500	-	Strip
AMS 5549	AM 355	Stainless Steel	S35500	-	Plate
AMS 5743	AM 355	Stainless Steel	S35500
AMS 5743 Bar	AM 355	Stainless Steel	S35500	-	Bar
AMS 5743 Forging	AM 355	Stainless Steel	S35500	-	Forging
AMS 5744	AM 355	Stainless Steel	S35500
AMS 5744 Bar	AM 355	Stainless Steel	S35500	-	Bar
AMS 5744 Forging	AM 355	Stainless Steel	S35500	-	Forging
AMS 5780	AM 355	Stainless Steel	S35500	-	Wire