ASTM B345 / B345M

This specification covers aluminum and aluminum-alloy seamless pipe and seamless extruded tube for gas and oil transmission and distribution piping systems. The pipe and tube shall be produced from hollow extrusion ingot (cast in hollow form or pierced) and shall be extruded by use of the die and mandrel method. The pipe and tube shall conform to the chemical composition requirements specified. The determination of chemical composition shall be made in accordance with suitable chemical (test methods E 34), or spectrochemical (test methods E 227, E 607, and E 1251) methods. Heat treatment for the production of T1 and T5-type tempers shall be in accordance with Practice B 807, and for the production of T4 and T6-type tempers, except as noted, shall be in accordance with practice B 918. Unless otherwise specified, alloys 6061, 6063, and 6351 may be solution heat treated and quenched at the extrusion press in accordance with practice B 807 for the production of T4 and T6-type tempers, as applicable. The material shall conform to the tensile property requirements specified. The tension tests shall be made in accordance with test methods B 557 and B 557M. Pipe and tube heat treated at the extrusion press shall conform to all requirements specified.

This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

1. Scope

1.1 This specification covers seamless pipe and seamless extruded tube in the aluminum and aluminum alloys (Note 1) and tempers listed in Table 1 and Table 2, respectively. Seamless pipe and seamless tube are intended for use in applications involving internal pressure.

Note 1—Throughout this specification use of the term alloyin the general sense includes aluminum as well as aluminum alloy.

Note 2—For drawn seamless tubes, see Specifications B 210 and B 210M; for extruded tubes, Specifications B 221 and B 221M; for drawn seamless tubes for condensers and heat exchangers, Specifications B 234 and B 234M; for seamless pipe and seamless extruded tube, B241/B 241M; for round welded tubes, Specification B 313/B 313M; for seamless condenser and heat exchanger tubes with integral fins, Specifications B 404 and B 404M; for extruded structural pipe and tube, Specification B 429; and for drawn tube for general purpose applications, Specifications B 483 and B 483M.

1.2 Alloy and temper designations are in accordance with ANSI H35.1 [H35.1M]. The equivalent Unified Numbering System alloy designations are those of Table 3 preceded by A9, for example, A93003 for aluminum alloy 3003 in accordance with Practice E 527.

1.3 For acceptance criteria for inclusion of new aluminum and aluminum alloys in this specification, see Annex A2.

1.4 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the specification.

2. Referenced Documents

ASTM Standards
B210 Specification for Aluminum and Aluminum-Alloy Drawn Seamless Tubes
B210M Specification for Aluminum and Aluminum-Alloy Drawn Seamless Tubes [Metric]
B221 Specification for Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles and Tubes
B221M Specification for Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles and Tubes
B234 Specification for Aluminum and Aluminum-Alloy Drawn Seamless Tubes for Condensers and Heat Exchangers
B234M Specification for Aluminum and Aluminum-Alloy Drawn Seamless Tubes for Condensers and Heat Exchangers [Metric]
B241/B241M Specification for Aluminum and Aluminum-Alloy Seamless Pipe and Seamless Extruded Tube
B313/B313M Specification for Aluminum and Aluminum-Alloy Round Welded Tubes
B557 Test Methods of Tension Testing Wrought and Cast Aluminum- and Magnesium-Alloy Products
B557M Test Methods of Tension Testing Wrought and Cast Aluminum- and Magnesium-Alloy Products [Metric]
B647 Test Method for Indentation Hardness of Aluminum Alloys by Means of a Webster Hardness Gage
B648 Test Method for Indentation Hardness of Aluminum Alloys by Means of a Barcol Impressor
B660 Practices for Packaging/Packing of Aluminum and Magnesium Products
B666/B666M Practice for Identification Marking of Aluminum and Magnesium Products
E1251 Test Method for Optical Emission Spectrometric Analysis of Aluminum and Aluminum Alloys by the Argon Atmosphere, Point-to-Plane, Unipolar Self-Initiating Capacitor Discharge
E18 Test Methods for Rockwell Hardness and Rockwell Superficial Hardness of Metallic Materials
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E34 Test Methods for Chemical Analysis of Aluminum and Aluminum-Base Alloys
E527 Practice for Numbering Metals and Alloys (UNS)
E55 Practice for Sampling Wrought Nonferrous Metals and Alloys for Determination of Chemical Composition
E607 Test Method for Atomic Emission Spectrometric Analysis of Aluminum and Aluminum Alloys by the Point-to-Plane Technique, Nitrogen Atmosphere
E716 Practices for Sampling Aluminum and Aluminum Alloys for Spectrochemical Analysis
ANSI Standards
H35.2M Dimensional Tolerances for Aluminum Mill Products
American Welding Society Standard
D10.7 Recommended Practices for Gas Shielded Arc Welding of Aluminum and Aluminum-Alloy Pipe
Military Standard
MIL-STD-129 Marking for Shipment and Storage
Federal Standard
Fed.Std.No.123 Marking for Shipment (Civil Agencies)

Index Terms

aluminum alloy; extruded tube; seamless pipe; seamless tube; ICS Number Code 23.040.15 (Non-ferrous metal pipes)

Citing ASTM Standards

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