C71500 Copper Nickel Pipe
Henan Gnee New Material Co., Ltd. is one of the most professional manufacturers and suppliers of c71500 copper nickel pipe in China, specialized in providing high quality copper products with competitive price. Welcome to buy discount c71500 copper nickel pipe for sale here from our factory. Customized orders are welcome.
C71500 Copper Nickel Tubes PDF
C71500 Copper Nickel Size Price PDF
As a leading supplier of copper-nickel alloys, GNEE offers a wide range of C71500 (70/30) copper-nickel alloys, including plates, bars, tubes, fittings, and flanges. This copper-nickel alloy is known for its moderate strength, good machinability, formability, and weldability. C715 copper alloy is also known as 70/30 copper-nickel alloy because it contains 30% nickel. C715 copper-nickel alloy is most commonly used in high-temperature, high-pressure, high-flow-rate, and highly destructive turbulent environments. Its extremely low iron content (maximum 0.5%) gives C715 alloy excellent corrosion resistance and resistance to stress corrosion cracking, making it ideal for marine and industrial applications.
C71500 (70/30) copper-nickel alloys
Chemical Properties
| Element | Cu (1,2) | Pb | Zn | Fe | Ni(3) | Mn |
| Min % | 0.4 | 29 | ||||
| Max % | Rem | 0.05 | 1 | 1 | 33 | 1 |
Physical Properties
| Melting Point – Liquidus ⁰F | 2260 | |
| Melting Point – Solidus ⁰F | 2140 | |
| Density lb/cu in. at 68⁰F | 0.323 | |
| Specific Gravity | 8.94 | |
| Electrical Conductivity % IACS at 68⁰F | 4.6 | |
| Thermal Conductivity Btu/sq ft/ft hr/ ⁰F at 68⁰F | 17 | |
| Coefficient of Thermal Expansion 10-6 per ⁰F (68-572 ⁰F) | 9 | |
| Specific Heat Capacity Btu/lb/⁰F @ 68 ⁰F | 0.09 | |
| Modulus of Elasticity in Tension ksi | 22000 | |
| Modulus of Rigidity ksi | 8300 |
Fabrication Properties
| TECHNIQUE | SUITABILTY | |
| Soldering | Excellent | |
| Brazing | Excellent | |
| Oxyacetylene Welding | Good | |
| Gas Shielded Arc Welding | Excellent | |
| Coated Metal Arc Welding | Excellent | |
| Spot Weld | Excellent | |
| Seam Weld | Excellent | |
| Butt Weld | Excellent | |
| Capacity for Being Cold Formed | Good | |
| Capacity for Being Hot Formed | Good | |
| Machinability Rating | 20 |
Mechanical Properties
| FORM | TEMPER | TENSILE STRENGTH | YS-0.5% EXT (KSI) | ELONGATION (%) | ROCKWELL (B) | ROCKWELL (F) | SECTION SIZE (IN) |
| TUBE | OS025 | 60 | 25 | 45 | 45 | 80 | |
| OS035 | 54 | 45 | 36 | 77 |
Product Specification Range: C71500 Copper-Nickel Alloy Tube
Material Standard: ASTM B111 / B111M - C71500 (Copper-Nickel 70/30)
| Specification Category | Details / Available Range |
|---|---|
| Material / UNS No. | C71500 (CuNi30Fe, 70/30 CuNi) |
| Standard | ASTM B111 / B111M, ASME SB-111 |
| Condition | Annealed (O60 / Soft), As-Drawn (Hard) |
| Outside Diameter (OD) | 6.00 mm - 50.80 mm (0.250" - 2.000") Other diameters upon request. |
| Wall Thickness (WT) | 0.50 mm - 3.00 mm (0.020" - 0.118") |
| Length | Standard: Up to 6.0 meters (20 feet) Fixed Cut Lengths are available. |
| Tolerance | OD Tolerance: ± 0.10 mm WT Tolerance: ± 10% |
| Form | Seamless, Straight Lengths |
Standards & Certifications
Strictly Adhered International Standards
Core Product Standard: ASTM B111 / B111M
Pressure Equipment Application Standard: ASME SB-111
Corresponding European Standard: EN 12451
Authoritative Material Certification and Traceability
EN 10204 3.1 Material Certificate
EN 10204 3.2 Material Certificate
Complete Traceability
Full-Process Quality Control System
Online Eddy Current Testing
Phase Three
Dimensional Accuracy Inspection
Mechanical Property Testing
Hydraulic Pressure Testing
Macroscopic and Microscopic Metallographic Analysis
Applications of b111 70/30 copper nickel pipe:
Marine & Shipbuilding – Used in seawater cooling, heat exchangers, condensers
Oil & Gas Industry – Offshore platforms, desalination plants, piping systems
Power Generation – Heat exchangers, nuclear power plants, cooling systems
Aerospace & Defense – Hydraulic tubing, high-performance applications
Chemical Processing – Acid-resistant piping, corrosion-resistant equipment
FAQ About SB 111 UNS C71500
01.How to choose between C71500 and C70600 (90/10 copper-nickel)?
02.What are the maximum temperatures and pressures it can withstand?
03.What precautions should be taken during welding?
Three key points:
Thorough cleaning before welding.
Argon gas protection is mandatory.
Use CuNi30Fe dedicated welding wire.
04.Will it really not be corroded by seawater?
05.Is it in stock? Do you support customization?
Packaging and shipping
GNEE is an enterprise engaged in the research, smelting and processing of copper and copper alloys. The factory covers an area of 350,000 square meters, and now has a series of production equipments such as vacuum induction furnace imported from the United States, vacuum consumable arc furnace made in Germany, 2800mm four-high reversible rolling mill, vacuum annealing furnace, and so on, which can customize the production of any size of plate within 2.6m * 16m, and the maximum length of a single pipe can reach 15m.
Meanwhile, we also have more than 100 sets of various testing instruments, the main equipment includes American non-destructive testing system, spectral analyzer, carbon and sulfur tester, universal testing machine, ultrasonic testing system, fatigue testing machine and so on.
With more than 10 years of export experience, our products are exported to USA, UK, Germany, France, Brazil, Japan, Korea, India, Vietnam, Australia, Philippines, Zambia, Indonesia and other countries.
Contact us today for a quotation：sales@gneemetal.com
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