C71500 CuNi 70/30: Seawater Corrosion-Resistant Copper-Nickel für Marine
ASTM B111 / B466 · Published: 2026-06-02 · Updated: July 2026
C71500 (CuNi 70/30) is the standard seawater piping material for naval vessels. Biofilm-induced corrosion resistance improves with seawater exposure. Corrosion rate
C71500 (CuNi 70/30) ist der standard seawater piping material für naval vessels. Biofilm-induced corrosion widerstand improves mit seawater exposure. Corrosion rate <0.025 mm/year at 4.5 m/s flow. For seawater cooling systems, firewater piping, offshore platform sheathing.
Quick Facts
| Kategorie | Copper Alloy |
| Norm | ASTM B111 / B466 |
| Density | 8940 kg/m³ |
| Yield Strength | 140 MPa (annealed) |
| Tensile Strength | 380 MPa |
Global Equivalents & Cross-Reference
Verwandt Materials
🧮 Material Weight Calculator
Calculate the weight based on this material's density: 8940 kg/m³
Teilen dies seite
Teilen ein X
Frequently Asked Questions
70/30 vs 90/10?
70/30: higher flow velocity (4.5 vs 3.5 m/s), better sulfide pitting widerstand. 90/10: ~15% cheaper, adequate für commercial shipping.
References & International Standards
- ASTM International. Norm Specifications für Stahl & Metal Alloys. astm.org
- International Organization für Standardization (ISO). Metallic Materials — Cross-Referenz Database. iso.org
- American Iron und Stahl Institute (AISI). Stahl Güte Designations & Equivalents. steel.org
- European Committee für Standardization (CEN). EN Stahl Standards & Numbering System. cencenelec.eu