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AMS 5640 | Steel, Corrosion-Resistant, Bars, Wire, and Forgings 18Cr - 9.0Ni Free Machining

What AMS 5640 covers

AMS 5640 is the aerospace material specification for steel, corrosion-resistant, bars, wire, and forgings free machining.

Titanium Industries stocks Stainless Steel Grade 303 Round Bar to AMS 5640.

Stainless Steel Alloy 303 is used for aircraft applications, fasteners and screws.

Specifications that cross-reference AMS 5640 include AMS 5641, ASTM A484, ASTM A582 and ASTM F899.

For AMS 5640 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 5640

AMS 5640

Stainless Steel Grade: 303

Product Forms: This specification covers three types of a free-machining, corrosion-resistant steel in the form of bars, wire, forgings, 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 5640 Specification — Table 1
Chemical Composition
C <=0.15% Cr 18% Fe 69% Mn <=2.0% Mo 0.60%
Ni 9.0% P <=0.20% Si <=1.0% S >= 0.15%
AMS 5640 Specification — Table 2
Mechanical Properties
Tensile Strength: 72.5 - 108.8 ksi Yield Strength: 34.8 - 60.2 ksi Elongation: 35.0 - 40.0%

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

Stainless Steel Alloy 303 Applications:

  • Aircraft Applications
  • Fasteners
  • Screws

Cross Reference Specifications

AMS 5640: questions and answers

What does AMS 5640 cover?

AMS 5640 covers three types of a free-machining, corrosion-resistant steel in the form of bars, wire, forgings, and forging stock.

Which products does Titanium Industries stock to AMS 5640?

Stainless Steel Grade 303 Round Bar.

Which specifications cross-reference AMS 5640?

AMS 5641, ASTM A484, ASTM A582 and ASTM F899.

What is Stainless Steel Alloy 303 used for?

Aircraft applications, fasteners and screws.

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