ASTM B447-12a(2021)

Standard Specification for Welded Copper Tube (Includes all amendments and changes 1/7/2021).

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STANDARD published on 1.1.2021

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The information about the standard:

Designation standards: ASTM B447-12a(2021)
Publication date standards: 1.1.2021
SKU: NS-1012988
The number of pages: 10
Approximate weight : 30 g (0.07 lbs)
Country: American technical standard
Category: Technical standards ASTM

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Non-ferrous metal pipes Copper products

Annotation of standard text ASTM B447-12a(2021) :

This specification establishes the requirements for welded copper tube with a longitudinal seam free of filler metal produced from sheet or strip of one of the Copper UNS Nos. C10100, C10200, C10300, C10800, C11000, C12000, C12200, and C14200. Copper C11000 welded tube shall not be used in applications where hydrogen embrittlement during heating is a concern. Tempers of the welded tube types are as follows: as-welded: WM50, WM02, or WM04, welded and annealed: W060 and W050, welded and cold drawn: WH00, WH02, and WH04, and fully finished: O60, O50, H55, H58, and H80. The product shall be manufactured by forming the material into a tubular shape on a suitable forming mill and welding shall be accomplished by any process that produces forge or fusion welds. The external flash of forge welded tube shall be removed by scarfing and the internal flash shall be treated by IFI (to remain in the as-welded condition), IFR (scarfing) or IFD (rolling or drawing) technique. The material shall conform to the chemical composition requirements prescribed for copper, phosphorus, and arsenic, as determined by chemical analysis. The welded tubes shall meet the requirements specified for grain size, electrical mass resistivity, mechanical properties such as tensile strength and Rockwell hardness, dimensions, and mass. Performance requirements includes microscopical examination, hydrogen embrittlement susceptibility test, and expansion test. Requirements for tensile, electromagnetic (eddy-current), hydrostatic, and pneumatic tests are detailed.

Keywords:
copper tube, copper welded tube, welded tube , Copper UNS No. C10100, Copper UNS No. C10200, Copper UNS No. C10300, Copper UNS No. C10800, Copper UNS No. C11000, Copper UNS No. C12000, Copper UNS No. C12200, Copper UNS No. C14200,, ICS Number Code 23.040.15 (Non-ferrous metal pipes),77.150.30 (Copper products)

Additional information

Significance and Use

20.1?For purposes of determining compliance with the specified limits for requirements of the properties listed in the following table and for dimensional tolerances, an observed value or a calculated value shall be rounded as indicated in accordance with the rounding method of Practice E29:

Property	Rounded Unit for Observed or Calculated Value
?
Chemical composition	Nearest unit in the last right-hand
Hardness	Significant
Electrical Resistivity	Digit used in expression the limiting value
Grain size up to 0.055 mm, incl	nearest multiple of 0.005 mm
Tensile strength	nearest ksi (5 MPa)
Expansion	Nearest 1%

1. Scope

1.1?This specification establishes the requirements for welded copper tube with a longitudinal seam free of filler metal produced from sheet or strip of the following coppers:

Copper UNS Nos.

Type of Copper

C10100

Oxygen-free electronic

C10200

Oxygen-free

C10300

Oxygen-free, extra low phosphorus

C10800

Oxygen-free, low phosphorus

C11000

Electrolytic tough pitch

C12000

Phosphorus deoxidized, low residual phosphorus

C12200

Phosphorus deoxidized, high residual phosphorus

C14200

Phosphorus deoxidized, arsenical

1.2?Unless otherwise specified in the contract or purchase order, product furnished of any listed copper, with the exception of copper C11000, shall be considered acceptable.

1.2.1?Copper C11000 welded tube shall not be used in applications where hydrogen embrittlement during heating is a concern.

1.3?UnitsThe values stated in inch-pound units are to be regarded as standard except for grain size, which is given in SI units. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

1.4?The following hazard caveat pertains only to Section 13 of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.5?This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

2. Referenced Documents

E527-23	Standard Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
E112-13(2021)	Standard Test Methods for Determining Average Grain Size
E62-89(1996)	Standard Test Methods for Chemical Analysis of Copper and Copper Alloys (Photometric Methods)
E243-18	Standard Practice for Electromagnetic (Eddy Current) Examination of Copper and Copper-Alloy Tubes
E29-22	Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E53-07	Standard Test Method for Determination of Copper in Unalloyed Copper by Gravimetry
E8/E8M-24	Standard Test Methods for Tension Testing of Metallic Materials
E3-11(2017)	Standard Guide for Preparation of Metallographic Specimens
B846-19a	Standard Terminology for Copper and Copper Alloys (Includes all amendments and changes 8/8/2019).
B601-18a	Standard Classification for Temper Designations for Copper and Copper Alloys´Wrought and Cast (Includes all amendments and changes 10/24/2018).
E255-23	Standard Practice for Sampling Copper and Copper Alloys for the Determination of Chemical Composition
B153-22	Standard Test Method for Expansion (Pin Test) of Copper and Copper-Alloy Pipe and Tubing
B170-99(2020)	Standard Specification for Oxygen-Free Electrolytic Copper´Refinery Shapes
B193-20	Standard Test Method for Resistivity of Electrical Conductor Materials
B577-19	Standard Test Methods for Detection of Cuprous Oxide (Hydrogen Embrittlement Susceptibility) in Copper

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