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Die Norm ASTM B640-12a(2021) 1.1.2021 Ansicht

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ASTM B640-12a(2021)

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

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NORM herausgegeben am 1.1.2021

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Bezeichnung normen: ASTM B640-12a(2021)
Ausgabedatum normen: 1.1.2021
SKU: NS-1012989
Zahl der Seiten: 9
Gewicht ca.: 27 g (0.06 Pfund)
Land: Amerikanische technische Norm
Kategorie: Technische Normen ASTM

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Copper products

Die Annotation des Normtextes ASTM B640-12a(2021) :

This specification establishes the requirements for welded copper for air conditioning and refrigeration service for use in connections, repairs, and alterations. The material of manufacture shall be sheet or strip of Copper Alloy UNS No. C10100, or C10200, or C12000, or C12200 of such purity and soundness as to be suitable for processing into welded tube to meet the properties prescribed. The product shall be manufactured by forming the material into a tubular shape on a suitable forming mill and welded using an automatic process. The product shall be cold worked to the finished size and wall thickness and subsequently annealed to meet the temper properties specified. The material shall conform to the chemical compositional requirements for the Copper UNS No. designation specified. Tensile strength test, expansion test, microscopical examination, hydrogen embrittlement susceptibility, flattening test, reverse bend test, electromagnetic test, and cleanness test shall be made to conform to specified requirements.

Keywords:
air conditioning tube, refrigeration tube, welded copper tube, UNS No. C10100, UNS No. C10200, UNS No. C12000, UNS No. C12200,, ICS Number Code 77.150.30 (Copper products)

Ergänzende Informationen

1. Scope

1.1?This specification establishes the requirements for welded copper tube for air conditioning and refrigeration service for use in connections, repairs, and alterations. The tube shall be made from one of the following coppers:

Copper UNS No.

Previously Used Designation

Type of Copper

C10100

OFE

Oxygen-free electronic

C10200

Oxygen-free without-residual oxidants

C12000

DLP

Phosphorus-deoxidized, low-residual phosphorus

C12200

DHP

Phosphorus-deoxidized, high-residual phosphorus

Note 1:?Fittings used for soldered or brazed connections in air conditioning and refrigeration systems are described in ASME Standard B 16.22.

Note 2:?The assembly of copper tubular systems by soldering is described in Practice B828.

Note 3:?Solders for joining copper tubular systems by described in Specification B32. The requirements for acceptable fluxes for these systems are described in Specification B813.

1.2?Copper UNS No. C12200 shall be furnished, unless otherwise specified. The copper tube shall be supplied in annealed coils or drawn temper straight lengths.

1.3?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.

1.4?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

B32-20	Standard Specification for Solder Metal
B 16.22	Wrought Copper and Copper Alloy Solder Joint Pressure Fittings
B170-99(2020)	Standard Specification for Oxygen-Free Electrolytic Copper´Refinery Shapes
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).
E8/E8M-24	Standard Test Methods for Tension Testing of Metallic Materials
E243-18	Standard Practice for Electromagnetic (Eddy Current) Examination of Copper and Copper-Alloy Tubes
B813-16	Standard Specification for Liquid and Paste Fluxes for Soldering of Copper and Copper Alloy Tube
B828-23	Standard Practice for Making Capillary Joints by Soldering of Copper and Copper Alloy Tube and Fittings
B846-19a	Standard Terminology for Copper and Copper Alloys (Includes all amendments and changes 8/8/2019).
B900-16(2022)	Standard Practice for Packaging of Copper and Copper Alloy Mill Products for U.S. Government Agencies
B968/B968M-16(2022)	Standard Test Method for Flattening of Copper and Copper-Alloy Pipe and Tube
E3-11(2017)	Standard Guide for Preparation of Metallographic Specimens
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)
E255-23	Standard Practice for Sampling Copper and Copper Alloys for the Determination of Chemical Composition
E527-23	Standard Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
B153-22	Standard Test Method for Expansion (Pin Test) of Copper and Copper-Alloy Pipe and Tubing

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