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Standard

Steel, Hotwork Tool, Bars and Forgings, 5.2Cr - 1.5Mo - 1.0V (0.35-0.45C) (H-13), Electroslag Remelted (ESR) or Consumable Electrode Vacuum Arc Remelted (VAR) Annealed

1989-01-01
HISTORICAL
AMS6408
This specification covers a premium aircraft quality, low alloy steel in the form of bars, forgings, and forging stock. These products have been used typically for hotwork tooling or 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 for use in service from 100 to +1000 °F ( 73 to 538 °C) and where such parts may require welding, 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. ARP1110 recommends practices to minimize such conditions.
Standard

Steel, Hotwork Tool, Bars and Forgings 5.2cr 1.5mo 1.0v (0.35-0.45c) Electroslag Remelted (Esr) Or Consumable Electrode Vacuum Arc Remelted (Var) Annealed

1994-02-01
HISTORICAL
AMS6408A
This specification covers a premium aircraft-quality, low-alloy steel in the form of bars, forgings, and forging stock. These products have been used typically for hotwork tooling or 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 for use in service from -100 degrees to +1000 degrees F (-73 degrees to 538 degrees C) and where such parts may require welding, but usage is not limited to such applications.
Standard

Steel Cleanliness, Special Aircraft-Quality Magnetic Particle Inspection Procedure

2010-08-18
CURRENT
AMS2304B
This specification covers steel cleanliness requirements in inch/pound units for special aircraft-quality ferromagnetic steels, including hardenable corrosion resistant steels, by magnetic particle inspection methods. This specification contains sampling, sample preparation, inspection procedures and cleanliness rating criteria (See 8.2).
Standard

Steel Cleanliness, Special Aircraft-Quality Magnetic Particle Inspection Procedure

2018-08-30
WIP
AMS2304C
This specification covers steel cleanliness requirements in inch/pound units for special aircraft-quality ferromagnetic steels, including hardenable corrosion resistant steels, by magnetic particle inspection methods. This specification contains sampling, sample preparation, inspection procedures and cleanliness rating criteria (See 8.2).

The metric version, MAM2304, has been cancelled. The SI units have been included in this specification, but the inch/pound units are primary (See 8.7)

Standard

Steel Cleanliness, Premium Aircraft-Quality Magnetic Particle Inspection Procedure, Metric (Si) Measurement

2001-05-01
HISTORICAL
MAM2300B
This specification covers steel cleanliness requirements in metric (SI) units for premium aircraft-quality ferromagnetic steels, other than hardenable, corrosion-resistant steels, by magnetic particle inspection methods. AMS 2300 is the inch/pound version of this MAM. This procedure has been used typically for the cleanliness evaluation of blooms, billets, tube rounds, stock for forging or flash welded rings, slabs, bars, plate, tubing, and extrusions used in fabricating highly-stressed parts where very strict magnetic particle inspection standards are used in final inspection of such parts, but may be used for qualification of a heat, melt or lot of steel.
Standard

Steel Cleanliness, Premium Aircraft-Quality Magnetic Particle Inspection Procedure, Metric (Si) Measurement

2003-03-12
HISTORICAL
MAM2300C
This specification covers steel cleanliness requirements in metric (SI) units for premium aircraft-quality ferromagnetic steels, other than hardenable, corrosion-resistant steels, by magnetic particle inspection methods. AMS 2300 is the inch/pound version of this MAM. This procedure has been used typically for the cleanliness evaluation of blooms, billets, tube rounds, stock for forging or flash welded rings, slabs, bars, plate, tubing, and extrusions used in fabricating highly-stressed parts where very strict magnetic particle inspection standards are used in final inspection of such parts, but may be used for qualification of a heat, melt or lot of steel.
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