HP 9-4-30 is a low-alloy, high strength that is used in applications that need very high fracture toughness. This alloys tensile range is in the 220*240 KSI tensile range. JP 9-4-30 has a high nickel and cobalt content to promote its toughness. This alloy has been designed to have high hardenability, good weldability, and as mentioned before, excellent fracture toughness.
Specifications:
- UNS K91283
- AMS, 6524 (plate, sheet, strip)
- AMS 5626 (bar, forging, ring, tubing)
- BMS-7-182
- EMS-96247
- MMS-2102
- STO-160-LBO-012
- MIL-STD-2154 Class A
Also known as Lescalloy HP 9-4-30 VAC ARC.
Applications:
Aircraft structure components, rocket motor casings, armor plate, pressure vessels, gears,