ASTM B743-23

Standard Specification for Seamless Copper Tube in Coils

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STANDARD published on 1.4.2023

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The information about the standard:

Designation standards: ASTM B743-23
Publication date standards: 1.4.2023
SKU: NS-1142670
The number of pages: 7
Approximate weight : 21 g (0.05 lbs)
Country: American technical standard
Category: Technical standards ASTM

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Copper products

Annotation of standard text ASTM B743-23 :

This standard specification establishes the requirements for seamless copper tube coils, suitable for use in refrigeration and air conditioning or other uses, such as oil lines and gasoline lines. The material of manufacture shall be cast billet, bar, tube and so forth of Copper Alloys No. C10200, C10300, C10800, C12000, or C12200. The tube shall be manufactured by such hot and cold working processes needed to produce a homogeneous, uniform wrought structure. The tube shall be cold drawn to the prescribed finish size and wall thickness. When the cold-drawn temper is required, the final drawing operation shall conform to the specified temper properties. When the annealed temper is required, the tube shall be annealed after the final cold draw to the specified temper properties. The product shall conform to the prescribed electrical mass resistivity, tensile strength, yield strength, Rockwell hardness, and expansion. Each tube shall be subjected to an eddy-current test. Particular coppers shall be tested to meet the cuprous oxide, embrittlement, and cleanness requirements.

Keywords:

coils, copper tubes, seamless, UNS No. C10200, UNS No. C10300, UNS No. C10800, UNS No. C12000, UNS No. C12200,, ICS Number Code 77.150.30 (Copper products)

Additional information

1. Scope

1.1?This specification establishes the requirements for seamless copper tube in coils, suitable for use in refrigeration and air conditioning or other uses, such as oil lines and gasoline lines.

1.2?UnitsThe values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

1.3?The tube shall be produced of the following coppers:

Copper Alloy
UNS No.

Previously Used
Designation

Type of Copper

C10200

Oxygen-free without residual deoxidants^A

C10300

...

Oxygen-free, extra low phosphorus^A

C10800

...

Oxygen-free, low phosphorus^A

C12000

DLP

Phosphorized, low residual phosphorus

C12200

DHP

Phosphorized, high residual phosphorus

1.4?The following safety hazards caveat pertains to the test method portion, Section 17, 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

B846-19a	Standard Terminology for Copper and Copper Alloys (Includes all amendments and changes 8/8/2019).
E2-ed.2	Bulletin on Management of Naturally Occurring Radioactive Materials (NORM) in Oil & Gas Production
E3-11(2017)	Standard Guide for Preparation of Metallographic Specimens
E8/E8M-24	Standard Test Methods for Tension Testing of Metallic Materials
E18-22	Standard Test Methods for Rockwell Hardness of Metallic Materials
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
E62-89(1996)	Standard Test Methods for Chemical Analysis of Copper and Copper Alloys (Photometric Methods)
E112-13(2021)	Standard Test Methods for Determining Average Grain Size
E243-18	Standard Practice for Electromagnetic (Eddy Current) Examination of Copper and Copper-Alloy Tubes
E255-23	Standard Practice for Sampling Copper and Copper Alloys for the Determination of Chemical Composition
E2575-19	Standard Test Method for Determination of Oxygen in Copper and Copper Alloys by Inert Gas Fusion
B251-10	Standard Specification for General Requirements for Wrought Seamless Copper and Copper-Alloy Tube
B577-19	Standard Test Methods for Detection of Cuprous Oxide (Hydrogen Embrittlement Susceptibility) in Copper
B601-18a	Standard Classification for Temper Designations for Copper and Copper Alloys´Wrought and Cast (Includes all amendments and changes 10/24/2018).
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
B224-16(2022)	Standard Classification of Coppers

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