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Norma ASTM B644-11(2017) 1.4.2017 náhľad

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ASTM B644-11(2017)

Standard Specification for Copper Alloy Addition Agents

NORMA vydaná dňa 1.4.2017

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Informácie o norme:

Označenie normy: ASTM B644-11(2017)
Dátum vydania normy: 1.4.2017
Kód tovaru: NS-680803
Počet strán: 4
Približná hmotnosť: 12 g (0.03 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM

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Anotácia textu normy ASTM B644-11(2017) :

This specification establishes the requirements for copper nickel, ferro copper, phosphor copper, and silicon copper master alloys in ingot, shot, and waffle form to be used as addition agents for cast and wrought alloys. Any material may be used which, when melted, will form an alloy of the required composition. Any manufacturing process may be used that will yield a product uniform in composition and free of defects of a nature that would render the product unsuitable for the intended application. The product in final form shall conform to the chemical composition requirements for the specified alloy. The sample for chemical analysis shall be done as specified. Composition shall be determined as the average of results from at least two replicate determinations for each element specified. For purposes of determining compliance with the specified limits for chemical composition, an observed or calculated value shall be rounded appropriately.

Keywords:
copper alloy addition agents, copper alloys, copper base alloys,, ICS Number Code 25.160.20 (Welding consumables)

Doplňujúce informácie

Significance and Use

11.1 For purposes of determining compliance with the specified limits for chemical composition an observed or 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 significant digit used in expressing the limiting value

1. Scope

1.1 This specification establishes the requirements for copper nickel, ferro copper, phosphor copper, and silicon copper master alloys in ingot, shot, and waffle form to be used as addition agents for cast and wrought alloys.

1.2 Units—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 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).
E29-22	Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E255-23	Standard Practice for Sampling Copper and Copper Alloys for the Determination of Chemical Composition
E54-80(1996)	Standard Test Methods for Chemical Analysis of Special Brasses and Bronzes (Withdrawn 2002)
No. 4748	Determination of Iron Content; Na2EDTA Titrimetric Method Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036.
E76-88(1998)	Standard Test Methods for Chemical Analysis of Nickel-Copper Alloys (Withdrawn 2003)
E478-08(2017)	Standard Test Methods for Chemical Analysis of Copper Alloys
E1371-05	Standard Test Method for Gravimetric Determination of Phosphorus in Phosphorus-Copper Alloys or Phosphorus-Copper-Silver Alloys (Withdrawn 2006)
E62-89(1996)	Standard Test Methods for Chemical Analysis of Copper and Copper Alloys (Photometric Methods)

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