70/30 Brass Tubes
70/30 Brass Tubes
Sunraj Industries 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.
| 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. |
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