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AMS 6415 | Steel, Bars, Forgings, and Tubing

What AMS 6415 covers

AMS 6415 is the aerospace material specification for steel, bars, forgings, and tubing.

AMS 6415 applies to alloy steel grade AISI 4340, as steel bars, forgings, and tubing.

Titanium Industries stocks Alloy Steel Grade AISI 4340 Round Bar to AMS 6415.

Alloy Steel 4340 is used for commercial and military aircraft, automotive, machine tools and crankshafts.

Specifications that cross-reference AMS 6415 include AMS 2300, AMS 2301, AMS 6322, AMS 6409, AMS 6414, AMS 6417, AMS 6419, AMS 6484, AMS-S-6049 and ASTM A322.

For AMS 6415 material, request a quote online or contact your nearest Titanium Industries location. The information on this page is for reference only and does not replace the specification itself.

Round bar, one of the product forms Titanium Industries stocks to AMS 6415

AMS 6415

Alloy Steel Grade: AISI 4340

Product Forms: Steel Bars, Forgings, and Tubing

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

Product availability:

DISCLAIMER: The use of this information should be considered strictly voluntary. Information contained in this page or across the domain, may contain typographical errors and are for reference only. Information presented are purely generalizations and are not a substitution for AMS specifications.

DISCLAIMER: Alloy data sheets are for reference only, not for design purposes.

AMS 6415 Specification — Table 1
Chemical Composition
Fe 96.0% Ni 1.90% Cr 0.80% Mn 0.70% C 0.40%
Mo 0.25% Si 0.25% S 0.04% P 0.04%
AMS 6415 Specification — Table 2
Mechanical Properties
Tensile Strength: 108 - 161 ksi Yield Strength: 68.8 - 125 ksi Elongation: 12.2 - 22.0%

Tensile properties and associated requirements vary due to orientation, section thickness, and engineering requirements.

Alloy Steel 4340 Applications:

  • Commercial and Military Aircraft
  • Automotive
  • Machine Tools
  • Crankshafts

Cross Reference Specifications

AMS 6415: questions and answers

What does AMS 6415 cover?

AMS 6415 covers an aircraft-quality, low-alloy steel in the form of bars, forgings, mechanical tubing, and forging stock.

Which products does Titanium Industries stock to AMS 6415?

Alloy Steel Grade AISI 4340 Round Bar.

Which specifications cross-reference AMS 6415?

AMS 2300, AMS 2301, AMS 6322, AMS 6409, AMS 6414, AMS 6417, AMS 6419, AMS 6484, AMS-S-6049 and ASTM A322.

What is Alloy Steel 4340 used for?

Commercial and military aircraft, automotive, machine tools and crankshafts.

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