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Inspection of Ground, Chromium, Plated Steel Parts

2019-07-18
CURRENT
AMS2440C
This specification covers the requirements for inspection of ground chromium plated surfaces for grinder-induced damage to the chromium plate and substructure. The specification also provides users with criteria for distinguishing between such damage and acceptable indications inherent to the chromium plate.
Standard

Carburizing and Heat Treatment of Carburizing Grade Steel Parts

2019-04-15
CURRENT
AMS2759/7D
This specification, in conjunction with the general requirements for steel heat treatment covered in AMS2759, establishes the requirements and procedures for three classes of gas, vacuum, liquid, and low pressure (LPC) carburizing and related heat treatment of parts fabricated from carburizing grade steels. Parts made from steels other than those specified in the detail specifications may be heat treated in accordance with the applicable requirements using processing temperatures, times, and other parameters recommended by the material producer unless otherwise specified by the purchaser. This specification does not cover pack carburizing.
Standard

Anodic Treatment of Aluminum Alloys Sulfuric Acid Process, Undyed Coating

2019-03-25
WIP
AMS2471J
This specification establishes the requirements for undyed anodic coatings on aluminum alloys. This process has been used typically to increase corrosion resistance and to provide surfaces that will promote adherence of paint and other organic finishes, but usage is not limited to such applications. AMS2472 should be specified for coatings colored by dyeing. This process is not suitable for parts that contain joints or recesses in which the anodizing solution may be retained.
Standard

Gaseous Nitrocarburizing

2019-03-15
CURRENT
AMS2757C
This specification covers the engineering requirements for producing a continuous thin epsilon-iron-carbonitride compound layer on parts by means of a gaseous, low temperature process, and properties of the case.
Standard

Vacuum Gauge Calibration

2019-03-06
CURRENT
ARP7446
This SAE Aerospace Recommended Practice (ARP) addresses the general procedure for the best practices for minimizing uncertainty when calibrating thermal conductivity and cold cathode vacuum gauges, which includes the vacuum sensor(s) and accompanying electronics necessary for a pressure measurement to be made. It also includes the best practices for an in-process verification where limitations make it impossible to follow the best practices for minimizing uncertainty. Verifying the accuracy and operation of vacuum gauges is critical to ensure the maintenance of processes while under vacuum.
Standard

Hydrogen Embrittlement Relief (Baking) of Steel Parts

2018-10-18
CURRENT
AMS2759/9E
This specification covers the requirements for embrittlement relief (baking) of heat treated steel parts to remove hydrogen infused during plating and certain other chemical processing such as stripping, chemical milling, pickling, and etching.
Standard

Etch Inspection of High Strength Steel Parts

2018-09-20
WIP
AMS2649E
This specification establishes the requirements for etch inspection of bare high strength low alloy steel parts having tensile strength of 180 ksi (1241 MPa) and higher and of carburized parts to detect overheating caused by abusive machining or grinding in the heat treated condition, and to detect localized discontinuous carburization. This process is not applicable to surface hardened steels produced by nitriding or carbonitriding. This process may remove 0.0001 to 0.0005 inch (2.5 to 12.7 micrometers) from the surface of the part.
Standard

Gas Nitriding of Low-Alloy Steel Parts

2018-06-11
CURRENT
AMS2759/6C
This document specifies the procedure and requirements for gas nitriding low-alloy and tool steels by the use of raw or dissociated ammonia. Additional alloys and steel families (e.g., stainless steels) can also be nitrided using parameters acceptable to the cognizant engineering organization.
Standard

Carburizing and Heat Treatment of Carburizing Grade Steel Parts

2018-06-11
HISTORICAL
AMS2759/7C
This specification, in conjunction with the general requirements for steel heat treatment covered in AMS2759, establishes the requirements and procedures for three classes of gas, vacuum, liquid, and low pressure (LPC) carburizing and related heat treatment of parts fabricated from carburizing grade steels. Parts made from steels other than those specified in the detail specifications may be heat treated in accordance with the applicable requirements using processing temperatures, times, and other parameters recommended by the material producer unless otherwise specified by the purchaser. This specification does not cover pack carburizing.
Standard

Carburizing Carbon and Low-Alloy Steel Parts

2018-03-14
CURRENT
AMS2762C
This specification covers the procedure for carburizing and related heat treatments of carbon and low-alloy steel parts to produce case hardening and specified mechanical properties within the capability of each respective steel.
Standard

Plating, Lead and Indium

2018-01-18
CURRENT
AMS2415K
This specification covers the requirements for electrodeposited and diffused lead and indium plate.
Standard

Plating, Brush, Cobalt

2017-11-20
CURRENT
AMS2451/11B
This specification covers the requirements for brush plating of cobalt by electrodeposition.
Standard

Engine Gray Finishing Low Baking

2017-09-20
CURRENT
AMS2510F
This specification covers the engineering requirements for finishing aircraft parts and assemblies with an engine gray enamel.
Standard

Treatment of Sheet Metal Parts Corrosion-Resistant Steel

2017-09-20
CURRENT
AMS2550F
This specification covers the engineering requirements for a treatment to provide enhanced corrosion resistance to sheet metal parts, such as brackets, spacers, and washers, fabricated from martensitic Corrosion-resistant steels, usually AMS 5504 or AMS 5508 and having hardness not higher than 40 HRC, or ferritic corrosion-resistant steels, usually AMS 5506. The treatment is not recommended for use on parts subject to impact in service.
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