EMS 96247

AiResearch / Honeywell Specification: This specification covers material used to produce critical aircraft components in the condition of normalized and sub-critical annealed plus additional testing requirements.

4.2 Classification Tests: Tests the supplier must perform in order to assure conformity to the requirements of this specification and to enable the certification of the quality of the product are as follows:

a. Chemical analysis

b. Magnetic particle inspection

c. As-shipped hardness

d. Capability tensile testing

e. Capability impact strength testing

f.  Banding inspection, longitudinal

g. Macroetch, transverse

h. Microcleanliness determination

i.  Grain size determination

j.  Ultrasonic inspection

k. Dimensional inspection

AMS 6488

SAE International: This specification covers a low-alloy steel in the form of bars, forgings, and forging stock. AMS 6488 features balanced alloy content, resulting in minimal distortion during hardening.

These products have been used typically for parts requiring a steel capable of through-hardening to a minimum hardness of 50 HRC in section thicknesses up to 12 inches (305 mm) with relatively high levels of strength, fatigue resistance, ductility, and thermal stability in service from -100 degrees to +1000 degrees F (-73 degrees to +538 degrees C), but usage is not limited to such applications.

Certain design and processing procedures may cause these products to become susceptible to stress-corrosion cracking after heat treatment; SAE ARP 1110 recommends practices to minimize such conditions

AMS 6487

SAE International: This specification covers a premium aircraft-quality, low-alloy steel in the form of bars, forgings, and forging stock. AMS 6487 is a chromium hot-worked steel that is characterized by low carbon content and good toughness.

AMS 6485

SAE International: This specification covers an aircraft-quality, low-alloy steel in the form of bars, forgings, and forging stock. AMS 6485 gives minimal size change during heat treatment and the alloy is forged at 2050°F.

AMS 6472

SAE International: This specification covers an aircraft quality, low alloy steel in the form of heat treated bars and forgings, and of forging stock.

AMS 6471

SAE International: This specification covers a premium aircraft-quality, low-alloy steel in the form of bars, forgings, mechanical tubing, and forging stock.

AMS 6470

SAE International: This specification covers an aircraft quality nitriding grade low alloy steel in the form of bars, forgings, mechanical tubing, and forging stock.

AMS 6526 (except N&T)

SAE International: This specification covers a premium aircraft-quality, high-strength, low-alloy steel in the form of bars, forgings, mechanical tubing, flash welded rings, and stock for forging or flash welded rings.

AMS 6260

SAE International: This specification covers an aircraft-quality, low-alloy steel in the form of bars, forgings, mechanical tubing, and forging stock.

AMS 6265

SAE International: This specification covers a premium aircraft-quality, low-alloy steel in the form of bars, forgings, mechanical tubing, and forging stock.