70/30 Brass Tubes
  • Type:70/30 Brass Tubes
  • Tube Material: Brass Tubes
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Product Description

Datang manufacture, exports and supplies wide range of  70/30 Brass Tubes used in varied areas. A copper zinc alloy containing tin and small amount of arsenic. This is added as an inhibitor against dezincification. The alloy exhibits a good combinations of strength and ductility and is commonly selected whenever excellent cold working properties and relatively low cost are desirable.

70/30 Brass Tubes are mainly used in Sugar Industries, Ammunition and General Engineering.

Technical Specification of Copper Alloy Tubes:

Standard BS 2871 Part ASTM B-135 NF A 51 102 IS 407 JIS H3300 AS 1572 DIN 17671 IS 1545
Symbol CZ 126 C 26000 CuZn 30 CuZn 30As C2600 259 CuZn 30 20265 CuZn 30 As
Cu
  69.0-71.0 68.5-71.5 68.5-71.5 69.0-71.0  68.5-71.5 69.0-71.0 69.0-71.0 69.0-71.0
 Sn – – – 0.10 – – .05 –
 Al  –  –  – 0.03 – – .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  Remainder Remainder Remainder Remainder Remainder Remainder Remainder Remainder
 As 0.02-0.06 – 0.02-0.06 – –  0.02-0.06 – 0.02-0.06
 Total Impurites Max. 0.03 – 0.03 0.03 –  – 0.1 0.30
Condition
 M H58 – O O O F28 O
 TA H80 – TA OH 1/4H F35 TA
 O HD 1/2H 1/2H F42 HD
Yield
 180 Max. 340 Min. – 180 Max.
 Strength – – – – – – 200 Max. –
N/mm2
 320 Max.
Tensile
 370 Min. – 285Mps/Min. 275 Min. 280-350 Mps 280-350 375 Max.
N/mm2
 455 Min. 300Mps/Min. 275 Min. – 350-420 340 Min.
  400Mps/Min. 373 Min. 320 Mps Min. 420 Min. 385 Min.
  451 Min.
  400Mps Min.
 Elongation – 45 Min. 40 Min.
 % – – – – 45 Min. 35 Min. – 55 Min.
  20 Min.
 Hardness HV 5 150 Min. 75 Max. 80 Max.  80 Max.
  85-110 – 80-105 80-110 – 80-105 – 80-105
  75 Min. 135 Min. 95-103 130 Min.
  150 Min.
Grain Size
 0.05 Max. – 010-045 – 025-060 065 Max.
 Mm (75X) 035 Min. 035 Min.