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ASTM B42-20

Standard Specification for Seamless Copper Pipe, Standard Sizes

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NORMA vydána dne 1.4.2020

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Informace o normě:

Označení normy: ASTM B42-20
Datum vydání normy: 1.4.2020
Kód zboží: NS-991690
Počet stran: 7
Přibližná hmotnost: 21 g (0.05 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM

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Anotace textu normy ASTM B42-20 :

This specification covers seamless copper pipe in all nominal standard pipe sizes, both regular and extra-strong, suitable for use in plumbing, boiler feed lines, and for similar purposes. The material shall conform to the specified chemical requirements. The pipe shall be produced from one of C10200, C10300, C10800, C12000, and C12200 copper UNS numbers. All pipes shall normally be furnished in the prescribed annealed, light drawn, or hard drawn temper. The pipe shall be made from copper that is free of cuprous oxide, as determined by microscopical examination. The pipe shall be subjected to expansion or flattening, Eddy-current, and hydrostatic tests. Samples for chemical analysis shall be taken in accordance with Practice E255. However, the manufacturer shall have the option of determining conformance by analyzing samples taken at the time the castings are poured or from the semifinished product, subject to the conditions set in the specification.

Keywords:

copper pipe, extra strong, regular, standard sizes , UNS No. C10200, UNS No. C10300, UNS No. C10800, UNS No. C12000, UNS No. C12200,, ICS Number Code 77.150.30 (Copper products)

Doplňující informace

Significance and Use

15.1 For purposes of determining compliance with the specified limits for requirements of the properties listed in the following table, 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 place of figures of the specified limit
Tensile strength Yield strength	nearest ksi (nearest 5 MPa)

1. Scope

1.1 This specification2 establishes the requirements for seamless copper pipe in all nominal or standard pipe sizes, both regular and extra-strong, suitable for use in plumbing, boiler feed lines, and for similar purposes.1.2 Units—The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are mathematical conversions to SI units, which are provided for information only and are not considered standard.

1.3 The following safety hazard caveat pertains only to the test methods described in this specification.

1.3.1 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.

1.4 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

B170-99(2020)	Standard Specification for Oxygen-Free Electrolytic Copper´Refinery Shapes
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)
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
E478-08(2017)	Standard Test Methods for Chemical Analysis of Copper Alloys
E527-23	Standard Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
B577-19	Standard Test Methods for Detection of Cuprous Oxide (Hydrogen Embrittlement Susceptibility) in Copper
B153-22	Standard Test Method for Expansion (Pin Test) of Copper and Copper-Alloy Pipe and Tubing
B601-18a	Standard Classification for Temper Designations for Copper and Copper Alloys´Wrought and Cast (Includes all amendments and changes 10/24/2018).
B846-19a	Standard Terminology for Copper and Copper Alloys (Includes all amendments and changes 8/8/2019).
B968/B968M-16(2022)	Standard Test Method for Flattening of Copper and Copper-Alloy Pipe and Tube
E8/E8M-24	Standard Test Methods for Tension Testing of Metallic Materials

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