Aircraft Steel HY-TUF Vac Melt (AMS 6418 / AMS 6425)


Technical Data Sheet

 

Chemical Composition Limits
Weight% C Mn Si Ni Cr Mo
LESCALLOY HY-TUF VAC-ARC® 0.25 1.35 1.50 1.80 0.30 0.40

LESCALLOY HY-TUF VAC ARC® is a high strength low alloy steel. within the tensile range 220/240 ksi (1517/1655MPa) LESCALLOY HY-TUF VAC ARC has good ductility, fracture toughness and impact strength. HY-TUF is most commonly used for aircraft landing gear, flap tracks and other structural applications.

Availability
LESCALLOY HY-TUF 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
LESCALLOY HY-TUF VAC ARC® Transverse 1517 1276 5 30
Typical Transverse specification limits after the following heat treatments
1725°F (940 °C), one hour, air cool
1600°F (871°C), one hour, oil quench
550°F (288°C), two hours, air cool

Specifications
AMS 6418
AMS 6425 (Vac Melt)
AMS 2300
AMS 2301
AMS 2304
AMS-S-7108
MIL-S-7108
ASTM A322
UNS K32550
DMS-1841 Grd B
DMS-1841 Grd A
  
Services
At Aircraft Materials all stock items can be shipped out within 24 hours, usually within the same day. Even cutting orders for bar or sheet can be processed and dispatched the same day, and for time-critical situations such as AOGs, we have a dedicated AOG service desk ready to help (aog@aircraftmaterials.com).

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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.

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