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Alloy Steel H-11 (AMS 6485 / AMS 6487 / AMS 6488)

Technical Data Sheet

Alloy H-11 (DYNAFLEX VAC-ARC®) is a medium alloyed steel with a relatively low carbon content. H-11 has good toughness and deep hardens by air quench from heat treatment. H-11 ultra high strength grade makes it idea for structural applications such as aircraft landing gear. It resists softening at temperatures up to 1000 F while retaining good ductility and toughness even at strength levels on the order of 275 ksi.

Chemical Composition Limits
Weight%	C	Mn	Si	Cr	Mo	V
DYNAFLEX VAC-ARC®	0.40	0.30	0.90	5.00	1.30	0.50

Availability
Alloy H-11 (DYNAFLEX VAC-ARC®) is available in bar (round bar). For all stock availability contact Sales.

Typical Mechanical Properties

Material	Orinentation	Ultimate Tensile Strength (Mpa)	0.2 % Yield Strength (Mpa)	% Elongation	% Reduction of Area
DYNAFLEX VAC-ARC®	Longitudinal	1793	1482	8	30
Austenitize at 1800°F (1010°C) for 15-45 minutes and air cool Temper three times for 2-3 hours at a temperature not lower than 1000°F (538°C) and air cool

Specifications
AMS 6485
AMS 6487
AMS 6488
UNS T20811
EMS-642

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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.