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SAE AMS4946

Titanium Alloy Tubing, Seamless, Hydraulic 3Al - 2.5V, Texture Controlled Cold Worked, Stress Relieved

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Organization: SAE
Publication Date: 1 February 2020
Status: active
Page Count: 12
scope:

Form

This specification covers a titanium alloy in the form of seamless tubing.

Application

This tubing has been used typically for parts, such as hydraulic lines, requiring strength and oxidation resistance up to 600 °F (316 °C), and weldability, but usage is not limited to such applications.

Type and Class

Tubing, covered by this specification, is classified by minimum yield strength as follows:

Type I - Tubing with 105 ksi (724 MPa) minimum yield strength

Type II - Tubing with 95 ksi (655 MPa) minimum yield strength

Type III - Tubing with 70 ksi (483 MPa) minimum yield strength

Tubing, covered by this specification, is classified by surface finish treatment as follows:

Class 1 - Conventional acid pickling surface finish treatment

Class 2 - Alternate surface finish treatment (requires qualification to AS5620)

If no class is specified, Class 1 shall be supplied.

Document History

SAE AMS4946
February 1, 2020
Titanium Alloy Tubing, Seamless, Hydraulic 3Al - 2.5V, Texture Controlled Cold Worked, Stress Relieved
Form This specification covers a titanium alloy in the form of seamless tubing. Application This tubing has been used typically for parts, such as hydraulic lines, requiring strength and oxidation...
SAE AMS4946
June 1, 2016
Titanium Alloy Tubing, Seamless, Hydraulic 3Al - 2.5V, Texture Controlled Cold Worked, Stress Relieved
Form This specification covers a titanium alloy in the form of seamless tubing. Application This tubing has been used typically for parts, such as hydraulic lines, requiring strength and oxidation...
SAE AMS4946
February 1, 2014
Titanium Alloy Tubing, Seamless, Hydraulic 3Al - 2.5V, Texture Controlled Cold Worked, Stress Relieved
Form This specification covers a titanium alloy in the form of seamless tubing. Application This tubing has been used typically for parts, such as hydraulic lines, requiring strength and oxidation...
SAE AMS4946
August 1, 2010
Titanium Alloy Tubing, Seamless, Hydraulic 3Al - 2.5V, Texture Controlled Cold Worked, Stress Relieved
Form This specification covers a titanium alloy in the form of seamless tubing. Application This tubing has been used typically for parts, such as hydraulic lines, requiring strength and oxidation...
SAE AMS4946
May 1, 2006
Titanium Alloy Tubing, Seamless, Hydraulic 3Al - 2.5V, Texture Controlled Cold Worked, Stress Relieved
Form This specification covers a titanium alloy in the form of seamless tubing. Application This tubing has been used typically for parts, such as hydraulic lines, requiring strength and oxidation...
SAE AMS4946
August 1, 2004
Titanium Alloy Tubing, Seamless, Hydraulic 3Al - 2.5V, Texture Controlled Cold Worked, Stress Relieved
Form: This specification covers a titanium alloy in the form of seamless tubing. Application: This tubing has been used typically for parts, such as hydraulic lines, requiring strength and...
SAE AMS4946
October 1, 2002
Titanium Alloy Tubing, Seamless, Hydraulic 3Al - 2.5V, Texture Controlled Cold Worked, Stress Relieved
Form: This specification covers a titanium alloy in the form of seamless tubing. Application: This tubing has been used typically for parts, such as hydraulic lines, requiring strength and oxidation...
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References

This document references:
ASME B46.1 - Surface Texture (Surface Roughness, Waviness, and Lay)
Published by ASME on January 1, 2019
This Standard is concerned with the geometric irregularities of surfaces. It defines surface texture and its constituents: roughness, waviness, and lay. It also defines parameters for specifying...
This document references:
E1409 - Standard Test Method for Determination of Oxygen and Nitrogen in Titanium and Titanium Alloys by Inert Gas Fusion
October 1, 2013
This test method covers the determination of oxygen in titanium and titanium alloys in mass fractions from 0.01 % to 0.5 % and the determination of nitrogen in titanium and titanium alloys in mass...
This document references:
ASTM E1447 - Standard Test Method for Determination of Hydrogen in Titanium and Titanium Alloys by Inert Gas Fusion Thermal Conductivity/Infrared Detection Method
Published by ASTM on March 1, 2009
This test method applies to the determination of hydrogen in titanium and titanium alloys in concentrations from 0.0006 % to 0.0260 %. The values stated in SI units are to be regarded as standard. No...
This document references:
ASTM E1941 - Standard Test Method for Determination of Carbon in Refractory and Reactive Metals and Their Alloys by Combustion Analysis
Published by ASTM on December 1, 2010
This test method applies to the determination of carbon in refractory and reactive metals and their alloys in quantities from 20 μg to 500 μg. This corresponds to mass fractions ranging from 0.004 wt...
This document references:
E2371 REV A - Standard Test Method for Analysis of Titanium and Titanium Alloys by Direct Current Plasma and Inductively Coupled Plasma Atomic Emission Spectrometry (Performance-Based Test Methodology)
December 1, 2021
This method describes the analysis of titanium and titanium alloys, such as specified by committee B10, by inductively coupled plasma atomic emission spectrometry (ICP-AES) and direct current plasma...
This document is referenced by:
SAE AS1576 - Fittings, Welded, Hydraulic, Titanium, Corrosion Resistant Steel and Nickel, 3000 psi Hydraulic
Published by SAE on April 1, 2020
This document defines the requirements for weld fittings and machine weldments using an orbiting welding head suitable for use on cold worked 3Al-2.5V titanium, 21Cr-6Ni-9Mn CRES, and 718 nickel...
This document is referenced by:
SAE AS85052 - (R) Clamp Assembly, Loop Type, Cushioned, General Specification for
Published by SAE on May 1, 2020
Application This SAE Aerospace Standard (AS) defines the requirements for loop type clamps primarily intended for general clamping of tubing for aircraft hydraulic systems.
This document is referenced by:
AS85421C - Fittings, Tube, Fluid Systems, Separable, Beam Seal, 3000/4000 psi, General Specification for
Published by SAE on May 1, 2021
This specification covers the design requirements and test procedures for separable beam seal fittings which includes end fittings (see 2.3.4), fitting bodies (see 2.3.7), and boss fittings (see...
This document is referenced by:
AS18280H - Fittings, 24 Degree Cone Flareless, Fluid Connection, 3000 psi
Published by SAE on May 1, 2021
This SAE Aerospace Standard (AS) establishes the requirements for 24 degree cone flareless fluid connection fittings and nuts, internally or externally swaged, preset, or welded sleeves for use in...
This document is referenced by:
MIL-DTL-83798D (5) - FITTING, RUBBER HOSE, LIGHTWEIGHT, MEDIUM PRESSURE, GENERAL SPECIFICATION FOR
Published by DLA on August 30, 2022
Scope. This specification covers the requirements for fitting, rubber hose, lightweight, medium pressure. These are field attachable fluid fittings for use with a lightweight, medium pressure, rubber...
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