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[China]
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Contact name:Jikin Cai
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Overview
Copper Nickel alloy Tube has extremely well resistance to biofouling and marine corrosion, and possess good fabricability. Copper gains more strength and corrosion resistance when nickel is added to it. UNS C71500 copper nickel alloy has medium high strength and good creep resistance at high temperatures. This alloy is expensive in comparison with copper-aluminum alloys and other alloys with similar mechanical properties. C71500 copper-nickel is an alloy of copper, further classified as a copper-nickel . CW354H is the EN numeric designation for this material. C71500 is the UNS number. Additionally, the EN chemical designation is CuNi30Mn1Fe. The British Standard (BS) designation is CN107. And the industry name is Cupronickel 70/30.
Specification
ASTM B111/B111M Standard Specification for Copper and Copper-Alloy Seamless Condenser Tubes and Ferrule Stock.
| Standard Grade | ASTM B111 C71500 | EN 12451 CuNi30Mn1Fe (CW354H) | DIN 17664/1785 CuNi30Mn1Fe | BS 2871 CN107 | JIS H3300 C7150 | GB/T 8890 BFe30-1-1 |
| Cu | Bal. | Bal. | Bal. | Bal. | Bal. | Bal. |
| Pb | 0.05 max | 0.02 max | 0.03 max | 0.01 max | 0.05 max | 0.02 max |
| Fe | 0.4-1.0 | 0.4-1.0 | 0.4-1.0 | 0.4-1.0 | 0.2-1.0 | 0.5-1.0 |
| Ni | 29.0-33.0 | 30.0-32.0 | 30.0-32.0 | 30.0-32.0 | 29.0-33.0 | 29.0-32.0 |
| Zn | 1.0 max | 0.5 max | 0.5 max | - | 0.5 max | 0.3 max |
| S | - | 0.05 max | 0.06 max | 0.08 max | - | 0.05 max |
| P | - | 0.02 max | - | - | - | 0.06 max |
| Mn | 1.0 max | 0.5-1.5 | 0.5-1.5 | 0.5-1.5 | 0.2-1.0 | 0.5-1.2 |
| C | - | 0.05 max | 0.06 max | 0.06 max | - | 0.05 max |
| Sn | - | 0.05 max | - | - | - | 0.03 max |
| Total Impurities | - | 0.2 max | 0.1 max | 0.3 max | - | 0.7 max |
| Condition | O61 | R370 | F37 | M | O | M |
| HR50 | R480 | - | O | - | Y2 | |
| - | - | - | - | - | - | |
| Yield Strength N/mm2 | 125 min | 120 min | 120-220 | - | - | - |
| 345 min | 300 min | - | - | - | - | |
| - | - | - | - | - | - | |
| Tensile Strength N/mm2 | 360 min. | 370 min | 370 min | - | 363 min | 370 min |
| 495 min. | 480 min | - | - | - | 490 min | |
| - | 480 min. | - | - | - | - | |
| Elongation (%) | - | 35 min | 35 min | - | 30 min | 30 min |
| 12min. (WT<1.21 mm) | 12 min | - | - | - | 10 min | |
| 15min. (WT>1,21 mm) | - | - | - | - | - | |
| Hardness Hv5 | - | - | - | 150 min | - | - |
| - | - | - | 90-120 | - | - | |
| - | - | - | - | - | - |
Chemical Composition
| Cu | Pb | Zn | Fe | Ni | Mn | |
| Min (%) | 0.40 | 29.00 | ||||
| Max (%) | Rem | 0.05 | 1.00 | 1.00 | 33.00 | 1.00 |
Mechanical Properties
| Form | Temper | Temper Code | Tensile Strength (ksi) | YS-0.5% Ext (ksi) | Elongation (%) | Rockwell B scale | Rockwell F scale | Section Size (in) | Cold Work (%) |
Flat Products | As Hot Rolled | M20 | 55 Typ | 20 Typ | 45 Typ | 35 Typ | - | 1 | |
| Rod | 1/2 Hard | H02 | 75 Typ | 70 Typ | 15 Typ | 80 Typ | - | 1 | 20 |
| Tube | Nominal Grain Size 0.025 mm | OS025 | 60 Typ | 25 Typ | 45 Typ | 45 Typ | 80 Typ | - | - |
Nominal Grain Size 0.035 mm | OS035 | 54 Typ | - | 45 Typ | 36 Typ | 77 Typ | - | - |
Applications
