ASTM B130-19 - 1.4.2019
 
Significance and Use

17.1 For purposes of determining compliance with the specified property limits for the properties listed in the following table, an observed value of 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
Hardness

nearest unit in the last right-hand
significant digit used in expressing
the limiting value.

Tensile strength

 nearest ksi (5 MPa)

Grain size:

 

 Up to 0.055 mm, incl

 nearest multiple of 0.005 mm

 Over 0.055 to 0.160 mm, incl

 nearest 0.01 mm

Elongation:

 

 5 % and over

 nearest 1 %

 
1. Scope

1.1 This specification establishes the requirements for commercial bronze strip for manufacture of bullet jacket cups and ammunition components from Copper Alloy UNS No. C22000.2

1.2 Units—The 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

E527-23

Standard Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)

E112-25

Standard Test Methods for Determining Average Grain Size

E255-23

Standard Practice for Sampling Copper and Copper Alloys for the Determination of Chemical Composition

B601-24

Standard Classification for Temper Designations for Copper and Copper Alloys—Wrought and Cast

B248/B248M

Specification for General Requirements for Wrought Copper and Copper-Alloy Plate, Sheet, Strip, and Rolled Bar

E478-24

Standard Test Methods for Chemical Analysis of Copper Alloys

E29-22

Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications

E18-25

Standard Test Methods for Rockwell Hardness of Metallic Materials

B846-24

Standard Terminology for Copper and Copper Alloys

E8/E8M-25

Standard Test Methods for Tension Testing of Metallic Materials

E3-26

Standard Guide for Preparation of Metallographic Specimens