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102.4 - Copper Base Alloys (block and disk forms)

The SRMs with a "C" prefix are chill-cast blocks, 31 mm square and 19 mm thick; the others are wrought disks, 31 mm in diameter and 19 mm thick. Both forms have nearly identical elemental compositions.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. For specific values and uncertainties, the certificate is the only official source.


- Certified values are normal font
- Reference values are italicized
- Values in parentheses are for information only


Detail - Detail    Certificate - Certificate    Report of Investigation - Report of Investigation    MSDS - MSDS    Data Files - Data Files    Questionaire - Questionnaire


  1107 1110 1111 1112 1113 1114 1115 C1115 1116 1117 C1117 1124 C1251a C1252a C1253a 1276a
Status   >> Now Selling Now Selling Now Selling Now Selling Now Selling Now Selling Now Selling Now Selling Now Selling Now Selling Now Selling Now Selling Now Selling Now Selling Now Selling Now Selling
Description   >> Naval Brass UNS 46400
Red Brass B Red Brass Standard
Gilding Metal
Gilding Metal
Gilding Metal
Commercial Bronze Standard for Optical Emission and X-ray Spectroscopic Analysis
Commercial Bronze A (block) Commercial Bronze Standard for Optical Emission and X-ray Spectroscopic Analysis
Commercial Bronze Standard for Optical Emission and X-ray Spectroscopic Analysis
Commercial Bronze C (block) Free Cutting Brass (UNS C36000) Phosphorus Deoxidized Copper - Cu VIII Phosphorus Deoxidized Copper - Cu IX Phosphorus Deoxidized Copper - Cu X Cupro-Nickel (CDA 715)
  Detail Certificate MSDS Detail Certificate MSDS Detail Certificate MSDS Detail Certificate MSDS Detail Certificate MSDS Detail Certificate MSDS Detail Certificate MSDS Detail Certificate MSDS Detail Certificate MSDS Detail Certificate MSDS Detail Certificate MSDS Detail Certificate MSDS Detail Certificate MSDS Detail Certificate MSDS Detail Certificate MSDS Detail Certificate MSDS
Unit of Issue   >> disk disk disk disk disk disk disk disk disk disk disk 1 disk block block block disk

Concentration are expressed as mass fraction, in % (unless noted by an asterisk * for mg/kg).
Aluminum (Al) 0.083                       <20 <20 176  
Antimony (Sb)                       232.5* 14.9 42 139 0.0004
Arsenic (As)                         16 118 436  
Bismuth (Bi)                       202* 3.7 19 56  
Cadmium (Cd)                       65.1* <3 16.9 70 0.0002
Chromium (Cr)                       155* 3 19 260  
Cobalt (Co)                       14* 13.2 87 454 0.045
Copper (Cu) 61.183 84.59 87.14 93.38 95.03 96.45 87.96 87.96 90.37 93.01 93.01 62.5* 99.89* 99.87* 99.46* 67.8
Gold (Au)                         15.5 33.9 72  
Iron (Fe) 0.0389 0.033 0.010 0.070 0.043 0.017 0.13 0.13 0.046 0.014 0.014 0.2068 285 72 290 0.56
Lead (Pb) 0.1850 0.033 0.013 0.057 0.026 0.012 0.013 0.013 0.042 0.069 0.069 3.363 23.5 60 243 0.004
Magnesium (Mg)                         <20 <20 150 0.12
Manganese (Mn)                       9* 4.6 43 357 1.01
Nickel (Ni) 0.0946 0.053 0.022 0.100 0.057 0.021 0.074 0.074 0.048 0.020 0.020 0.0801 23.6 128 491 30.5
Phosphorus (P)       0.009 0.008 0.009 0.05 0.05 0.008 0.002 0.002 224* 420 125 561 0.006
Selenium (Se)                         11 56 136 0.005
Silicon (Si)                         <50 <100 580  
Silver (Ag)                       131* 80 158 494  
Sulfur (S)                       31* 35 70 50  
Tellurium (Te)                         16 54.6 168  
Tin (Sn) 1.066 0.051 0.019 0.12 0.064 0.027 0.10 0.10 0.044 0.021 0.021 0.3112 16 120 499 0.023
Zinc (Zn) 37.396 15.20 12.81 6.30 4.80 3.47 11.73 11.73 9.44 6.87 6.87 35.19 24 69.4 329 0.038

- Certified values are normal font
- Reference values are italicized
- Values in parentheses are for information only