Nitronic 40 /21-6-9 (AMS 5656 / AMS 5595)

Technical Data Sheet

Nitronic 40 (21-6-9) is a high-manganese nitrogen strengthened stainless steel. Nitronic 40 properties include high strength in the annealed condition, excellent resistance to corrosion at high temperatures, readily weldable and it can also be fabricated. Nitronic 40 is used in a numerous applications including aircraft engine components, chemical processing, pollution control equipment.

Chemical Composition Limits
Weight%	C	P	Si	Ni	Fe	Mn	S	Cr	N	Mo	Cu
Nitronic 40 (21-6-9)	0.04 max	0.060 max	1.00 max	5.5-7.5	Bal	8-10	0.030 max	19-21.5	0.15-0.40	0.75 max	0.75 max

Typical Mechanical Properties

Alloy	Cross Section Size	Test Direction	Yield Strength 0.2%		Ultimate Tensile Strength		Elongation in 2"(%)	Reduction of Area %	Rockwell B Hardness
Alloy	Cross Section Size	Test Direction	ksi	MPa	ksi	MPa	Elongation in 2"(%)	Reduction of Area %	Rockwell B Hardness
Nitronic 40 (21-6-9)	6" (152mm) sq	Longitudinal	62	428	95	655	46	69
Nitronic 40 (21-6-9)	6" (152mm) sq	Transverse	52	358	93	641	30	45
Nitronic 40 (21-6-9)	4" (102mm) sq	Longitudinal	56	386	97	668	53	73
Nitronic 40 (21-6-9)	1" (25.4mm)sq	Longitudinal	52	358	101	696	53	73	90

Availability
Nitronic 40 (21-6-9) is available as Bar, Wire, Sheet, Plate, Strip, Forgings, Extrusions, Rings, Tube (Welded or Seamless), Billet and Welding Wire. For all stock availability contact Sales.

Specifications
AMS 5656 Bar / Wire
AMS 5595 Sheet / Plate / Strip
AMS 5561 Welded tube
AMS 5562 Seamless Tube
AMS 5656 Rings / Extrusions
MIL-T-9821
ASTM A276 / ASME SA276
ASTM A412 / ASME SA412
ASTM A580 / ASME SA580
UNS S21906

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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.