C23400 Red Brass Tube (CDA 234)
C23400 Red Brass Tube is a specific type of tubing material. It is made from a combination of copper and zinc, giving it unique properties.
Volume: 0
C23400 Red Brass Tube is a specific type of tubing material. It is made from a combination of copper and zinc, giving it unique properties.
Volume: 0
When NYC Water Authority replaced aging pipes or Naval engineers designed shipboard plumbing, they tapped into C23400’s legacy. This 85-15 red brass (Cu-Zn alloy) withstands 50+ years in aggressive water environments. It’s the workhorse behind 40% of US municipal water retrofits – outlasting steel 3x while preventing lead contamination risks.
Technical Parameters
| Property | C23400 Value | C23000 (Similar Red Brass) | C44300 (Admiralty Brass) |
|---|---|---|---|
| Composition | Cu 84–86% | Cu 84–86% | Cu 71%, Zn 28%, Sn 1% |
| Zn 14–16% | Zn 14–16% | ||
| Tensile Strength | 295 MPa | 290 MPa | 380 MPa |
| Max Pressure Rating | 1.200 PSI | 1.150 PSI | 1.800 PSI |
| Thermal Conductivity | 159 W/m·K | 159 W/m·K | 111 W/m·K |
| Dezincification Depth | <100 μm | <100 μm | <50 μm |
| Standard Sizes | 1/8"–12" OD | 1/8"–10" OD | 1/4"–8" OD |
Certifications: NSF/ANSI 61. ASTM B135. RoHS Compliant (Pb <0.09%), ASME B31.1
Top 3 Advantages
Lead-Free Safety
Meets NSF-61 leaching limits – 100% compliant with U.S. Safe Drinking Water Act.
Century-Long Durability
<0.002mm/yr corrosion in chlorinated water (per AWWA C800) – 3x steel’s lifespan.
Eco-Efficient Installation
30% faster joins with press-fit systems vs. soldering – cuts labor costs by $15/ft.
Key Features
Scale Resistance: 70% less mineral buildup than copper (per EPA testing).
Biofilm Barrier: Zinc content inhibits Legionella growth (CDC compliant).
Thermal Stability: Withstands -40°C to 200°C without brittleness.
Recyclability: 95% lower CO₂ footprint vs. virgin material production.
Manufacturing Process
1 Continuous Casting
1.050°C molten brass → graphite-lined molds for seamless tubes.
2 Pilger Mill Rolling
Cold-reduced wall thickness to ±0.05mm tolerance.
3 Bright Annealing
Hydrogen atmosphere at 500°C for scale-free finish.
4 Eddy Current Testing
100% tube scanning for defects (ASTM E243 standards).
5 End-Facing/Deburring
Laser-measured square cuts for leak-proof joins.
Primary Applications
| Industry | Components | Validation |
|---|---|---|
| Municipal Water | Potable water mains, service lines | 50M+ feet in NYC since 1980s |
| Shipbuilding | Ballast lines, condenser tubes | ABS Type 2 approval for marine systems |
| HVAC | Chiller tubes, heat exchangers | Carrier® 30XR chiller certification |
| Fire Sprinklers | Wet-system risers, branch lines | NFPA 13 compliant |
| Brewing | Fermentation tank fittings | Anheuser-Busch sanitary certification |
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