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AMS 6370 | Steel, Bars, Forgings, and Rings

What AMS 6370 covers

AMS 6370 is the aerospace material specification for steel, bars, forgings, and rings.

AMS 6370 applies to alloy steel grade AISI 4130, as steel, bars, forgings, and rings.

Titanium Industries stocks Alloy Steel Grade AISI 4130 Round Bar to AMS 6370.

Alloy Steel 4130 is used for commercial and military aircraft, automotive, oil & gas, agricultural and forged valve bodies and pumps.

Specifications that cross-reference AMS 6370 include AMS 2301, AMS 6346, AMS 6348, AMS-S-6758 and ASTM A331.

For AMS 6370 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 6370

AMS 6370

Alloy Steel Grade: AISI 4130

Product Forms: Steel, Bars, Forgings, and Rings

Scope: This specification covers an aircraft-quality, low-alloy steel in the form of bars, forgings, flash welded rings, and stock for forging or flash welded rings.

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 6370 Specification — Table 1
Chemical Composition
Fe 97.0% Cr 1.0% Mn 0.50% C 0.30% Si 0.25%
Mo 0.20% S 0.05% P 0.05%
AMS 6370 Specification — Table 2
Mechanical Properties
Tensile Strength: 81.2 - 150 ksi Yield Strength: 52.3 - 63.3 ksi Elongation: 25.5 - 28.2%

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

Alloy Steel 4130 Applications:

  • Commercial and Military Aircraft
  • Automotive
  • Oil & Gas
  • Agricultural
  • Forged Valve Bodies and Pumps

Cross Reference Specifications

Discounted Alloy Steel

AMS 6370: questions and answers

What does AMS 6370 cover?

AMS 6370 covers an aircraft-quality, low-alloy steel in the form of bars, forgings, flash welded rings, and stock for forging or flash welded rings.

Which products does Titanium Industries stock to AMS 6370?

Alloy Steel Grade AISI 4130 Round Bar.

Which specifications cross-reference AMS 6370?

AMS 2301, AMS 6346, AMS 6348, AMS-S-6758 and ASTM A331.

What is Alloy Steel 4130 used for?

Commercial and military aircraft, automotive, oil & gas, agricultural and forged valve bodies and pumps.

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