Products   Technical Specifications For 70 / 30 Brass Tubes   STANDARD BS 2871 PART 3 ASTM B 135 NFA 51 102 IS 407 JIS  H3300 AS 1572 DIN 17671 IS 1545 SYMBOL CZ 126 C 26000 CuZn30 CuZn30As C 2600 259 CuZn30 2.0265 CuZn30As Cu 69.0-71.0 68.5-71.5 68.5-71.5 68.5-71.5 68.5-71.5 69.0-71.0 69.0-71.0 69.0-71.0 Sn - - - - - - 0.05 - Al - - - - - - 0.02 - Pb 0.07 0.07 0.07 0.07 0.07 0.05 0.05 0.07 Ni - - - - - - 0.2 - Fe 0.06 0.05 0.06 0.06 0.05 0.05 0.05 0.06 Zn  REM’DER  REM’DER  REM’DER  REM’DER  REM’DER  REM’DER  REM’DER  REM’DER As 0.02-0.06 - 0.02-0.06 0.02-0.06 - 0.02-0.06 - 0.02-0.06 TOTAL IMPURITIES MAX. 0.3 - 0.3 0.3 - - 0.1 0.3                 CONDITION --                      -- M H58 - O O O F28 O TA H80 - TA OH 1/4H F35 TA O - - HD 1/2H 1/2H F42 HD - - - - H H - -- YIELD STRENGTH N /MM 2 - - - - - - 180 Max. - - - - - - - 200 Max. - - - - - - - 320 Max. - TENSILE    N / MM2 Minimum   370 - 285Mpa 275 280-350 Mpa 280-350 375 Max. - 455 - 300 Mpa 275 320 Mpa 350-420 340 - - - 400 Mpa 373 - 420 385 - - - - 451 400 Mpa - - ELNG’TION Percent (%) Minimum - - - - 45 40 - - - - - - 45 35 - 56 - - - - 20 - - - HARDNESS HV 5 150 Min. - - 75 Max. - 80 Max. - 80 Max.   - -     80-105 -   80-105 - 80-105 80-110 - 95-130 - 80-105 75 Max. - - 135 Min. - 150 Min. - 130 Min. GRAIN SIZE mm (75X) - - - - 0.025--0.060 0.065 Max. - - 0.05 Max. - 0.010-0.045 - 0.035 Min. 0.035 Max. - - - - - - - - - -

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