TOBO INDUSTRIAL (SHANGHAI) CO., LTD
TOBO INDUSTRIAL (SHANGHAI) CO., LTD
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Copper Nickel Forged Pipe Fitting Socket Reducing Tee 3/4"X 1/2" 20Bar UNS C70600
The rapid development of the marine industry has put forward higher and higher requirements for materials used in marine engineering, including copper, which is widely used in ships, some power plants and seawater desalination. Because of its long-term seawater erosion corrosion, if the corrosion resistance does not meet the use requirements, corrosion failure will occur, resulting in huge losses. Therefore, white copper has attracted increasing attention due to its good seawater corrosion resistance (especially good erosion corrosion performance) and corrosion fatigue resistance, excellent cold and hot working process performance, and high tensile strength, yield strength and other properties.
ASTM B467 Copper Nickel Forged Fittings Specification
| Specifications | ASTM B122, B171, B466, B467 |
| Standard | ASME 16.11, MSS SP-79, 83, 95, 97, BS 3799 |
| Size | 1/8” NB to 4” NB (Socketweld & Screwed-Threaded) |
| Type | Socketweld Fittings, Screwed-Threaded Fittings |
| Grades | Copper Nickel 90/10 (C70600 ), Cupro Nickel 70/30 (C71500), UNS C71640 |
| Class | 2000 LBS, 3000 LBS, 6000 LBS, 9000 LBS |
| STANDARD | WERKSTOFF NR. | UNS |
| Copper Nickel 90/10 | 2.0872 | C70600 |
| Copper Nickel 70/30 | 2.0882 | C71500 |
| ASTM B467 – ASME SB467 | Standard Specification for Copper Nickel Piping Fittings |
| ASME B16.11 | Socket Welding and Threaded Forged Fittings |
| MSS SP-43 | Wrought and Fabricated Butt-Welding Fittings for Low Pressure, Corrosion Resistant Applications |
| MSS SP-95 | Swage(d) Nipples and Bull Plugs |
| BS3799 | Specification for Steel pipe fittings, screwed and Socket-welding for the petroleum industry |
Properties and applications of cu ni alloy
Ordinary white copper is generally a structural copper nickel alloy. In addition to its high corrosion resistance, it has good comprehensive mechanical properties at high and low temperatures, that is, it has good plasticity and toughness. It is generally used as a bar or strip. At the same time, adding some trace alloy elements such as Fe, Mn, Zn and Al on the basis of ordinary white copper can meet the special performance requirements of practical applications and better meet the industrial needs.
The most widely used iron white copper is BFe10-1-1 (C70600) and BFe30-1-1 (C71500). When the mass fraction of Ni is 30% and 10%, the passivation range of the alloy is wide and the corrosion resistance is the best. Moreover, this alloy also has super seawater erosion corrosion resistance, so it is called "ocean engineering alloy"
Copper nickel alloy copper 90/10 and copper nickel alloy copper 70/30 are used in seawater condenser system, seawater desalination plant and pipeline system of chemical plant due to their good seawater corrosion resistance.
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