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  -  TECHNICAL SPECIFICATIONS FOR ADMIRALTY BRASS TUBES
 
brass tubes
STANDARD BS 2871
PART3
ASTM B
111
DIN
1785
NFA 51
102
JIS
H3300
IS
1545
SYMBOL CZ111 C 44300 CuZn28Sn1 CuZn29Sn1 C 4430 CuZn29Sn1As
Cu 70.0 - 73.0 70.0 - 73.0 70.3 - 72.5 70.0 - 73.0 70.0 - 73.0 70.0 - 73.0
Sn 1.0 - 1.5 0.9 - 1.2 0.9 - 1.3 0.9 - 1.2 0.9 - 1.2 1.0 - 1.5
Pb 0.07 0.07 0.07 0.07 0.07 0.07
Ni - - 0.1 - - -
Fe 0.06 0.06 0.07 0.06 0.06 0.06
Zn REM'DER REM'DER REM'DER REM'DER REM'DER REM'DER
As 0.02 - 0.06 0.02 - 0.06 0.02 - 0.035 0.02 - 0.06 0.02 - 0.06 0.02 - 0.06
P - - 0.01 - - -
TOTAL
IMPURITIES
MAX
 - - -
0.3 - 0.1 0.3 - 0.3
 - - - - - -
CONDITION M 061 F36 - - O
TA - F32 - O TA
O - - - - D
YIELD STRENGTH
N / MM2
- - 140 - 220 - - -
- 105 100 - 170 - - -
- - - - - -
TENSILE
N / MM2 Minimum
- 310 360 - - 375 Mpa Max.
- - 320 - 314Min. 340 Mpa Max.
- - - - - 385 Mpa Min.
ELNG'TION Percent (%) Minimum - - 45Min. - - -
- - 55Min. - 30Min. -
- - - - - -
HARDNESS

HV 5
150Min. - - - - 80 Max.
80 - 105 - - 80 - 120 - 80 - 105
75Max. - - - - 130 Min.
GRAIN SIZE mm(75X)
0.05Max. 0.010 - 0.045 - 0.010 - 0.045 0.010 - 0.045 0.010 - 0.045
- - - - - -
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