ASME SB171 C71500 Copper Nickel 70/30 Tube Sheet for Heat Exchangers
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ASME SB171 C71500 Copper-Nickel 70/30 tube sheet is a specialized metal plate designed to support and seal tubes within heat exchangers, fabricated from a 70% copper and 30% nickel alloy (UNS C71500) that complies with the stringent standards of the ASME SB-171 specification.
C71500 is a copper-nickel alloy characterized by a single α-phase structure, achieved due to the unlimited solid solubility of nickel in copper. The ASME SB171 C71500 Copper-Nickel 70/30 tube sheets supplied by GNEE deliver exceptional resistance to seawater corrosion, biofouling, and erosion, with a corrosion rate in seawater as low as <0.01 mm/year. These tube sheets feature high thermal conductivity (approximately 50-60 W/m·K), tensile strength of 450-550 MPa, yield strength of 170-220 MPa, and elongation of 30-40%, ensuring superior durability under thermal cycling and mechanical stress in marine and industrial environments.
Manufactured strictly in accordance with ASME SB171 standards, GNEE's C71500 tube sheets are available in customized diameters (up to 2000 mm+), thicknesses (20-150 mm), and hole configurations. The tube holes are precision-drilled to a diameter tolerance of ±0.05 mm and a positioning tolerance of ±0.1 mm, ensuring optimal fluid flow and structural integrity.
ASME SB171 C71500 Copper Nickel 70/30 Specification
| Property | Specification |
|---|---|
| Material Grade | ASME SB171 C71500 Copper Nickel 70/30 |
| Material Type | Copper Nickel Alloy |
| Hardness | Rockwell B: 70-90 |
| Surface Finish | Polished, Annealed, or as specified |
| Thickness Range | 10 mm to 150 mm |
| Outer Diameter Range | 100 mm to 1000 mm (custom sizes available upon request) |
DIN 2.0882 Cold Rolled Plates Chemical Composition Standard
| Grade | Cu | Mn | Pb | Ni | Fe | Zn |
|---|---|---|---|---|---|---|
| Cupro Nickel 70/30 | 65 min | 1.0 max | 0.05 max | 29-33 max | 0.4-1.0 max | 1 max |
70/30 Copper Nickel Sheet Mechanical Behaviour
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
|---|---|---|---|---|
| 0.323 lb/in3 at 68 F | 2260 F | 50000 psi | 20000 psi | 30 % |
Applications:
Customized high-precision tube sheets are primarily used in chemical vessels, such as shell-and-tube heat exchangers, boilers, pressure vessels, condensers, central air conditioners, evaporators, and desalination systems, supporting and securing the shell and tubes. This metal material offers both high rigidity and excellent thermal conductivity.
Tube sheets undergo rigorous quality control, including ultrasonic testing (UT) to detect internal defects, dimensional inspection, and material certification (MTC) to verify alloy composition, mechanical properties, and corrosion resistance.GNEE guarantees full traceability and complies with international marine and industrial standards, ensuring long-term, stable operation in chloride-rich and high-humidity environments.
All stainless steel sheets undergo moisture-proof treatment and are securely packaged in wooden crates, pallets, or bubble wrap. They are transported in standard containers or dedicated vehicles to ensure the integrity and safety of the goods during transit. We offer global shipping, with a typical lead time of 7-15 days from production to delivery, ensuring on-time delivery to our customers.
