-
Industries Overview公司产品主要运用于核电、石油、石化、化工、电力、汽车、造船、化肥、医药、造纸、制糖、机械制造等工业装备行业。 -
Products & Solutions我们的产品：黑色金属矿原料（镍矿、镍铁、铬铁、锰铁、硅铁等）、无缝管、焊管、中厚板、板卷、棒材、 盘条、盘丝、管件、法兰、铸件等。 -
Community公司凭借良好的信誉、完善的服务和充足的资源，在同行业中树立了良好的口碑。 -
Production Show Room公司产品主要运用于核电、石油、石化、化工、电力、汽车、造船、化肥、医药、造纸、制糖、机械制造等工业装备行业。 -
About Us上海鑫鑫荣特钢材料有限公司于2012年通过德国莱茵检测认证服务有限公司TUV Rheinland 的ISO9001国际质量体系认证，现正和英国英国船级社子公司劳氏质量认证公司 LRQA （Lloyd's Register Quality Assurance）申请认证通过ISO9001质量体系、ISO14001国际环境管理体系和ISO45001职业健康管理体系国际认证。
-
Products & Solutions
Copper-Nickel Alloy Tubes & Pipes
Copper-Nickel Alloy Tubes & Pipes
Copper-Nickel Alloy Tubes & Pipes
1) Overview
Copper-nickel alloy tubes (Cu-Ni tubes) are widely known for their outstanding corrosion resistance, seawater erosion resistance, and excellent workability, making them the preferred material for shipbuilding, marine engineering, desalination, and power plant condensers.
Common grades include CuNi 90/10 (C70600) and CuNi 70/30 (C71500), offering good strength, ductility, and weldability for long-term service in seawater and saline environments.
2) Manufacturing Process
• Melting & Casting: vacuum induction melting / continuous casting
• Forming: hot extrusion, cold drawing, cold rolling
• Heat Treatment: solution annealing
• Surface: pickling, polishing
• End Finishing: cutting, flaring, chamfering, flanging
3) Key Features
• Superior corrosion resistance: withstands seawater, brine, and fresh water
• Anti-erosion & anti-fouling: ideal for high-velocity seawater
• Excellent workability: suitable for cold/hot forming and welding
• High thermal conductivity: ideal for heat exchangers & condensers
• Stable mechanical properties: balance of strength and ductility
4) Standards
(Cu-Ni tubes only)
• ASTM / ASME: ASTM B111 / ASME SB111 (seamless), ASTM B466 / SB466 (welded), ASTM B467 (welded condenser tubes)
• EN / DIN: EN 12449 (copper & copper alloy seamless tubes), DIN 86019 (Cu-Ni tubes for marine service)
• BS: BS ME 490 (Cu-Ni tubes for seawater condensers & heat exchangers)
• China (GB): GB/T 1527 (drawn copper & copper alloy tubes), GB/T 8890 (Cu & Cu alloy heat exchanger tubes)
5) Grades
• CuNi 90/10: UNS C70600, DIN 2.0872
• CuNi 70/30: UNS C71500, DIN 2.0882
• Special alloys: CuNi 66/30/2 (with Fe, Mn for enhanced corrosion resistance)
6) Applications
• Marine & shipbuilding: seawater cooling systems, ballast pipes, fire-fighting lines
• Power & energy: condenser tubes, heat exchanger tubes, cooling water lines
• Desalination: evaporators, condensers
• Chemical & metallurgy: corrosion-resistant piping, heat transfer equipment
• Offshore oil & gas: manifolds, cooling circuits, potable water systems
7) Quality & Testing
• Chemical composition: spectrometer (Cu/Ni/Fe/Mn)
• Mechanical properties: tensile, hardness, flattening, flaring tests
• NDT: eddy current, ultrasonic testing
• Hydrostatic / pneumatic test: each tube tested
• Surface quality: visual & endoscopic inspection
• Third-party inspection: SGS, BV, LR, DNV, ABS
8) Supply & Packaging
• Forms: straight tubes, U-bent tubes, coils
• Size range: OD 6 – 219 mm, WT 0.5 – 12 mm
• Packaging: plastic end caps + waterproof packing + wooden cases, seaworthy packing
• Traceability: MTC (EN 10204 3.1/3.2)
Tags:
