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SAE AMS6415

Steel, Bars, Forgings, and Tubing 0.80Cr - 1.8Ni - 0.25Mo (0.38 - 0.43C) (SAE 4340)

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Organization: SAE
Publication Date: 1 December 2016
Status: active
Page Count: 9
scope:

Form

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

Application

These products have been used typically for parts, 3.5 inches (89 mm) and under in nominal thickness at time of heat treatment, requiring a through-hardening steel capable of developing a minimum hardness of 40 HRC when properly hardened and tempered and also for parts of greater thickness, but requiring proportionately lower hardness. 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.

Document History

SAE AMS6415
December 1, 2016
Steel, Bars, Forgings, and Tubing 0.80Cr - 1.8Ni - 0.25Mo (0.38 - 0.43C) (SAE 4340)
Form This specification covers an aircraft-quality, low-alloy steel in the form of bars, forgings, mechanical tubing, and forging stock. Application These products have been used typically for...
July 1, 2012
Steel, Bars, Forgings, and Tubing 0.80Cr - 1.8Ni - 0.25Mo (0.38 - 0.43C) (SAE 4340)
Form This specification covers an aircraft-quality, low-alloy steel in the form of bars, forgings, mechanical tubing, and forging stock.  Application These products have been used typically for...
February 1, 2007
Steel, Bars, Forgings, and Tubing 0.80Cr - 1.8Ni - 0.25Mo (0.38 - 0.43C) (SAE 4340)
Form This specification covers an aircraft-quality, low-alloy steel in the form of bars, forgings, mechanical tubing, and forging stock. Application These products have been used typically for...
June 1, 2003
Steel, Bars, Forgings, and Tubing 0.80Cr - 1.8Ni - 0.25Mo (0.38 - 0.43C) (SAE 4340)
Form: This specification covers an aircraft-quality, low-alloy steel in the form of bars, forgings, mechanical tubing, and forging stock. Application: These products have been used typically for...
November 1, 1997
Steel, Bars, Forgings, and Tubing 0.80Cr - 1.8Ni - 0.25Mo (0.38 - 0.43C) (SAE 4340)
1. SCOPE: 1.1 Form: This specification covers an aircraft-quality, low-alloy steel in the form of bars, forgings, mechanical tubing, and forging stock procured in inch/ pound units. 1.1.1 MAM 6415 is...
June 1, 1996
Steel, Bars, Forgings, and Tubing 0.80Cr - 1.8Ni - 0.25Mo (0.38 - 0.43C) (SAE 4340) (UNS G43406)
A description is not available for this item.
January 1, 1991
STEEL BARS, FORGINGS, AND TUBING 0.80Cr - 1.8Ni - 0.25Mo (0.38 - 0.43C) (SAE 4340)
Form: This specification covers an aircraft-quality, low-alloy steel in the form of bars, forgings, mechanical tubing, and forging stock. MAM-6415 is the metric equivalent of this AMS. Application:...
October 1, 1988
STEEL BARS, FORGINGS, AND TUBING 0.80Cr - 1.8Ni - 0.25Mo (0.38 - 0.43C) (SAE 4340)
Form: This specification covers an aircraft-quality, low-alloy steel in the form of bars, forging stock procured in inch/pound units. MAM 6415, specified in SI (metric) units, is the equivalent of...
October 1, 1984
STEEL BARS, FORGINGS, AND TUBING 0.80Cr - 1.8Ni - 0.25Mo (0.38 - 0.43C) (SAE 4340)
Form: This specification covers a premium aircraft-quality, low-alloy steel in the form of bars, forgings, mechanical tubing, and forging stock. Application: Primarily for critical parts, 3.5 in....
October 15, 1979
STEEL BARS, FORGINGS, AND TUBING 0.80Cr - 1.8Ni - 0.25Mo (0.38 - 0.43C) (SAE 4340)
Form: This specification covers an aircraft-quality, low-alloy steel in the form of bars, forgings, mechanical tubing, and forging stock. Application: Primarily for parts with sections 3.5 in. (89...
December 1, 1973
STEEL BARS, FORGINGS, AND TUBING 0.80Cr - 1.8Ni - 0.25Mo (0.38 - 0.43C) (SAE 4340)
Form: This specification covers an aircraft-quality, low-alloy steel in the form of bars, forgings, mechanical tubing, and forging stock. Application: Primarily for parts having section thickness of...
November 1, 1968
STEEL BARS, FORGINGS, AND TUBING 0.8Cr - 1.8Ni - 0.25Mo (0.38 - 0.43C) (SAE 4340)
APPLICATION: Primarily for parts having section thickness of 3.5 in. or less at the time of heat treatment and which require a through-hardening steel capable of developing a minimum hardness of...
January 31, 1964
STEEL BARS, FORGINGS, AND TUBING 0.8Cr - 1.8Ni - 0.25Mo (0.38 - 0.43C) (SAE 4340)
APPLICATION: Parts with sections 3.5 in. or less in thickness at the time of heat treatment which require a through-hardening steel capable of developing a minimum hardness of Rockwell C 30 when...
May 1, 1954
STEEL 0.8Cr - 1.8Ni - 0.25Mo (0.38-0.43C) (SAE 4340)
APPLICATION: Parts with sections 3.5 in. or less in thickness at the time of heat treatment which require a through-hardening steel capable of developing hardness as high as Rockwell C 30 as the...
October 1, 1951
STEEL 1.8Ni - 0.8Cr - 0.25Mo (0.38-0.43C) (SAE 4340)
APPLICATION: Parts with sections 3.5 in. or less in thickness at the time of heat treatment which require a through-hardening steel capable of developing hardness as high as Rockwell C 30 as the...
August 1, 1949
STEEL 1.8Ni - 0.8Cr - 0.25Mo (0.38 - 0.43C) (SAE 4340)
APPLICATION: Parts with sections 3.5 in. or less in thickness at the time of heat treatment which require a through-hardening steel capable of developing hardness as high as Rockwell C 30 as the...
August 1, 1945
STEEL 1.8 Ni .8 Cr .25 Mo (.38 - .43C)
A description is not available for this item.
June 1, 1942
STEEL Nickel - Chromium - Molybdenum
A description is not available for this item.
January 23, 1940
STEEL Nickel Chromium Molybdenum
A description is not available for this item.

References

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