SAE AMS6409E-2016 PDF

Scope: Form This specification covers a low-alloy steel in the form of bars@ forgings@ mechanical tubing@ and forging stock. Application These products have been used typically for parts required to meet stringent magnetic particle inspection criteria@ having sections 3.5 inches (89 mm) and under in nominal thickness at time of heat treatment@ and 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@ 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. These products are not recommended for use in parts heat treated to a hardness greater than 46 HRC (ultimate tensile strength over 220 ksi (1517 MPa)) or where the high transverse properties of remelted steel are required (see 8.2).

SAE AMS6409E-2016 history

2021 SAE AMS6409F-2021 Steel, Bars, Forgings, Mechanical Tubing and Forging Stock 0.80Cr - 1.8Ni - 0.25Mo (0.38 - 0.43C) (SAE 4340) Special Aircraft Quality Cleanliness Normalized and Tempered
2016 SAE AMS6409E-2016 Steel@ Bars@ Forgings@ and Tubing 0.80Cr - 1.8Ni - 0.25Mo (0.38 - 0.43C) (SAE 4340) Special Aircraft Quality Cleanliness Normalized and Tempered (UNS G43406)
2012 SAE AMS6409D-2012 Steel, Bars, Forgings, and Tubing 0.80Cr 1.8Ni 0.25Mo (0.38-0.43C) (SAE 4340) Special Aircraft Quality Cleanliness, Normalized and Tempered
2007 SAE AMS6409C-2007 Steel, Bars, Forgings, and Tubing 0.80Cr 1.8Ni 0.25Mo (0.38-0.43C) (SAE) 4340) Special Aircraft Quality Cleanliness, Normalized and Tempered
2002 SAE AMS6409B-2002 Steel, Bars, Forgings, and Tubing 0.80Cr 1.8Ni 0.25Mo (0.38-0.43C) Special Aircraft Quality Cleanliness, Normalized and Tempered
1996 SAE AMS6409A-1996 Steel@ Bars@ Forgings@ and Tubing 0.80Cr - 1.8Ni - 0.25Mo (0.38 - 0.43C) (SAE 4340) Special Aircraft Quality Cleanliness Normalized and Tempered (UNS G43406)
1992 SAE AMS6409-1992 STEEL BARS, FORGINGS, AND TUBING 0.80Cr - 1.8Ni - 0.25Mo (0.38 - 0.43C) (SAE 4340) Special Aircraft Quality Cleanliness Normalized and Tempered
1987 SAE AMS6409-1987 STEEL BARS@ FORGINGS@ AND TUBING 0.80Cr - 1.8Ni - 0.25Mo (0.38 - 0.43C) (SAE 4340) Special Aircraft Quality Cleanliness Normalized and Tempered (UNS G43400)