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Aircraft Steel 9-4-30 Vac Melt (AMS 6526)


Technical Data Sheet

 

Chemical Composition Limits
Weight% C Mn Si Cr V Mo Ni Co
9-4-30 Vac Melt N&T 0.30 0.30 0.10 1.00 0.10 1.00 7.50 4.50

Alloy 9-4-30 Vac Melt N&T (LESCALLOY HP 9-4-30 VAC ARC ®) is a low alloy, high strength steel with a high nickel and cobalt content to promote toughness. Alloy 9-4-30 Vac Melt N&T was designed to have high hardenability together with good weldability and excellent fracture toughness. Alloy 9-4-30 Vac Melt N&T is used in aircraft structural components, rocket motor cases, armor plate, pressure vessels and gears.

Availability
Alloy 9-4-30 Vac Melt N&T (LESCALLOY HP 9-4-30 VAC ARC ®) is available in bar (round bar).  For all stock availability contact Sales.

Typical Mechanical Properties

 

Material RCS Billet Size mm
0.2 % Yield Strength (Mpa) Ultimate Tensile Strength (Mpa) % Elongation % Reduction of Area
LESCALLOY HP 9-4-30 VAC ARC ® 343 1300 1580 14.7 50.3
LESCALLOY HP 9-4-30 VAC ARC ® 343 1260 1590 14.0 45.9
LESCALLOY HP 9-4-30 VAC ARC ® 146 1340 1600 15.0 52.5
LESCALLOY HP 9-4-30 VAC ARC ® 146 1310 1590 15.0 51.7
Actual center transverse mechanical properties

Specifications
AMS 6526
MIL-STD-2154 Cl A
UNS K91283
BMS-7-182 Type 2
MM-S-2102
STO-160-LBO-012
  
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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