70/30 Cupro Nickel Tubes
Our 70/30 Cupro Nickel Tubes have best service life under the most adverse Conditions because of their Improved Corrosion resistance and excellent Stress Corrosion. These 70/30 Cupro Nickel Tubes are used in those applications where severe erosion and corrosion are normal, especially at Elevated Temperatures. Our 70/30 Cupro Nickel Tubes are available in different Outside Diameters, Wall Thicknesses and Tempers to meet the Requirement.
Product Application Areas:
High Capacity Power Plants, Ship Building & Ship Repairs, Heat Exchangers and condensers, Distiller Tubes, Evaporators , Ferrules
Guid To Selection Of Tube Material:
Sea Water:
- Dissolved salts from 10,000ppm.
- Presence of abrasive suspended solids.
- Polluted with H2s and Ammonia.
Permissible average velocity of water 3.0-4.0 meter/sec
Od Size Range:
4 to 110mm
Thickness Range:
0.3 to 10mm
70/30 Cupro Nickel Tubes:
| Standard | Symbol |
|---|---|
| ASTM B 111 | C 71500 |
| BS 2871 Part 3 | CN 107 |
| EN 12451 | CuNi 30 Mn 1Fe |
| JIS H 3300 | C 7150 |
| IS 1545 | CuNI 30 Mn1Fe |
Testing Done On Tubes
Maximum Pressure Work
P = Maxium work pressure(psi)- S = Minimum tensile strength of material for a specific temper(It is the value of the tensile strength in psi in Mechanica properties table)
- D = Exterior diameter of tube
- T = Wall thickness of tube
- P = (2T x S)/5D
Non Destructive Tests
- Eddy Current Testing
- Hydrostatic Testing
- Air Underwater Testing
- Ultrasonic Testing
- (PMI) Positive Material Identification
Destructive Tests
- Microstructure Test
- Tensile Test
- Flattening Test
- Expansion Test
- Optical Spectrometry Test
- Ammonia Vapor Test
| Materials | Grades | Product Symbol | Cu | Su | Zn | Pb | Ni | Fe | As | P | Min | AI |
| 70/30 Cupro Nickel Tubes | ASTM B -111 | C 715000 | Remainder | - | 1.0 | 0.05 | 29-33 | 0.4-1 | - | 1.0 | - |