ASTM B508-22

ASTM B508-22 - 1.5.2022

Significance and Use

15.1?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 place of figures of the specified limit
?	Grain size	nearest multiple of 0.005 mm

1. Scope

1.1?This specification establishes the requirements for annealed copper-alloy strip for the manufacture of flexible metal hose produced from Copper Alloy UNS Nos. C41100 and C50500.

1.1.1?The nominal compositions are as follows:

Copper Alloy
UNS No.

Copper

Zinc

Tin

C41100

91.0

8.5

0.5

C50500

98.7

...

1.3

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. Grain size is given in SI units.

1.3?The following safety hazard caveat pertains only to the test methods portion, Section 14, 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

E478-08(2017)	Standard Test Methods for Chemical Analysis of Copper Alloys
E112-13(2021)	Standard Test Methods for Determining Average Grain Size
E255-23	Standard Practice for Sampling Copper and Copper Alloys for the Determination of Chemical Composition
E62-89(1996)	Standard Test Methods for Chemical Analysis of Copper and Copper Alloys (Photometric Methods)
E29-22	Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
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).