45° Short Radius Copper Nickel Elbow
When space is limited but the pipeline still needs a smooth direction change, the 45° Short Radius Copper Nickel Elbow is often the practical choice. Compared with a long radius elbow, the 45° SR Copper Nickel Elbow takes up less installation space while maintaining reliable corrosion resistance in seawater and harsh marine environments.
- Product Name: 45° SR Copper Nickel Elbow / 45 Degree Short Radius CuNi Elbow
- Material Grades: CuNi 90/10, CuNi 70/30
- Connection Type: Butt Weld
- Typical Applications: Marine piping, offshore platforms, shipbuilding, seawater cooling, desalination plants
- Applicable Standards: ASTM, DIN, EEMUA, JIS and project-specific specifications
- Key Benefits: Compact short-radius design, high corrosion resistance, durable performance in seawater systems
HC Aluminum is a trusted manufacturer and supplier of high-quality Copper Nickel Elbows. Common materials include CuNi 90/10 C70600 and CuNi 70/30 C71500, with sizes and wall thickness available according to project drawings or international standards.
We supply copper nickel pipe fittings in various grades, sizes, wall thicknesses, and pressure ratings to meet different project requirements. Each Copper Nickel 45 Degree Elbow is produced under strict quality control and can comply with major international standards such as ASTM, JIS, BS, DIN, ANSI, MIL-STD, and EEMUA. With excellent corrosion resistance, durability, and dimensional accuracy.
If you are building a complete copper nickel piping system, you may also need our Copper Nickel Pipe Fittings, Copper Nickel Pipes and Copper Nickel Flanges.
What Is a 45° SR Copper Nickel Elbow?
A 45° Short Radius Copper Nickel Elbow, also called 45° SR CuNi Elbow, is a pipe fitting used to change the flow direction by 45 degrees. “Short radius” means the bending radius is more compact, making it suitable for areas where piping layout space is restricted.
In marine and offshore engineering, copper nickel elbows are widely used because copper nickel alloy offers excellent resistance to:
- Seawater corrosion
- Biofouling
- Erosion corrosion
- Stress corrosion cracking
- Marine atmosphere exposure
For projects requiring a tighter pipeline arrangement, the 45° Short Radius Copper Nickel Elbow can help reduce space occupation without compromising the durability of the seawater system.
45° Short Radius Copper Nickel Elbow Specifications
| Product Name | 45° Short Radius Copper Nickel Elbow |
| Also Called | 45° SR Copper Nickel Elbow, 45° SR CuNi Elbow |
| Material | CuNi 90/10 C70600, CuNi 70/30 C71500 |
| Angle | 45 Degree |
| Radius | Short Radius |
| Connection | Butt Weld |
| Size Range | Customizable according to project requirement |
| Wall Thickness | As per standard or drawing |
| Standards | ASME, ASTM, DIN, EN, JIS or project specification |
| Surface | Pickled, cleaned, sand blasted or as required |
| Certificates | MTC, inspection report, third-party inspection available |
| Application | Marine, offshore, desalination, shipbuilding, seawater pipeline |
For matching fittings, you may also check 90° Copper Nickel Elbow and Copper Nickel Tee.
Why Choose a 45° SR Copper Nickel Elbow?
A 45° SR Copper Nickel Elbow is designed for piping systems where installation space is limited but reliable performance is still essential. Its short-radius (1D) centerline allows the pipeline to change direction within a tighter footprint, making it a practical solution for compact equipment layouts and congested piping arrangements.
While a short radius elbow creates slightly more flow resistance than a long radius elbow, it offers significant installation advantages in marine and offshore applications where available space often determines the piping design. Manufactured from copper nickel alloys, the fitting also provides excellent resistance to seawater corrosion and long-term durability in demanding environments.
A high-quality 45° SR Copper Nickel Elbow offers the following benefits:
- Compact 1D radius for space-constrained installations
- Efficient routing of marine and offshore piping systems
- Excellent resistance to seawater corrosion and biofouling
- High weldability for secure fabrication and installation
- Strong mechanical performance under demanding operating conditions
- Compatible with CuNi 90/10 and CuNi 70/30 piping systems
- Reduced maintenance requirements throughout the service life
- Suitable for seawater cooling, ballast, fire protection and desalination systems
Whether used in shipbuilding, offshore platforms or coastal industrial facilities, the 45° SR Copper Nickel Elbow provides a dependable combination of compact design, corrosion resistance and long-term reliability for critical piping applications.
45° SR Copper Nickel Elbow Materials
Selecting the right alloy is just as important as choosing the correct fitting design. Our 45° SR Copper Nickel Elbow is manufactured in both CuNi 90/10 (C70600) and CuNi 70/30 (C71500), allowing engineers to match piping performance with the operating environment, seawater velocity and project requirements.
Both materials offer excellent resistance to marine corrosion, biofouling and erosion, while maintaining reliable weldability and long-term service life for offshore and industrial piping systems.
CuNi 90/10 (UNS C70600)
CuNi 90/10 is the most commonly specified copper nickel alloy for marine piping. With an optimized balance of corrosion resistance, mechanical strength and affordability, it performs exceptionally well in normal seawater service and coastal environments.
Recommended applications:
- Seawater cooling systems
- Firefighting and fire water pipelines
- Ballast water distribution systems
- Desalination plants and seawater intake lines
- Commercial shipbuilding and coastal infrastructure
Explore our complete CuNi 90/10 Pipe range for compatible marine piping solutions.
CuNi 70/30 (UNS C71500)
CuNi 70/30 contains a higher nickel content, delivering enhanced resistance to erosion, high-flow seawater and harsh offshore operating conditions. It is widely selected for critical applications where maximum durability and reliability are required.
Recommended applications:
- Offshore oil and gas piping systems
- High-pressure seawater pipelines
- Naval vessels and defense marine projects
- Heat exchangers and condenser tubing systems
- Heavy-duty marine and industrial process piping
View our CuNi 70/30 Pipe to build a complete copper nickel piping system with matching materials.
Copper Nickel Elbow Chemical Composition
90/10 (UNS C70600) CuNi Elbow Chemical Composition
| KME CuNi90/10 | DIN 17664 2.0882 | BS 2871 CN102 | ASTM B466 C70600 | JIS H3300 C7060T | DIN 86019 2.1972 | EEMUA 234 UNS 7060X | GB/T 5231 BFe10-1.6-1 | |
| Ni% | 10.0-11.0 | 9.0-11.0 | 10.0-11.0 | 9.0-11.0 | 9.0-11.0 | 9.0-11.0 | 10.0-11.0 | 9.0-11.0 |
| Fe% | 1.5-1.8 | 1.0-2.0 | 1.0-2.0 | 1.0-1.8 | 1.0-1.8 | 1.5-1.8 | 1.5-2.0 | 1.5-1.8 |
| Mn% | 0.6-1.0 | 0.5-1.0 | 0.5-1.0 | max.1.0 | 0.2-1.0 | 0.5-1.0 | 0.5-1.0 | 0.5-1.0 |
| C% | max.0.05 | max.0.05 | max.0.05 | max.0.05 | max.0.05 | max.0.05 | max.0.05 | |
| Pb% | max.0.01 | max.0.03 | max.0.01 | max.0.02 | max.0.05 | max.0.01 | max.0.01 | max.0.03 |
| S% | max.0.005 | max.0.02 | max.0.05 | max.0.02 | max.0.005 | max.0.02 | max.0.01 | |
| P% | max.0.02 | max.0.02 | max.0.02 | max.0.02 | max.0.02 | max.0.02 | ||
| Zn% | max.0.05 | max.0.50 | max.0.50 | max.0.50 | max.0.05 | max.0.20 | max.0.20 | |
| Other | max.0.20 | max.0.30 | max.0.20 | max.0.30 | max.0.40 | |||
| Cu% | rem. | rem. | rem. | rem. | +Ni+Fe+Mn min99.5 | rem. | rem. | rem. |
70/30 (UNS C71500) CuNi Elbow Chemical Composition
| KME CuNi70/30 | DIN 176642.0882 | BS 2871 CN107 | ASTM B466C71500 | JIS H3300C7150T | |
| Ni% | 30.0-32.0 | 30.0-32.0 | 30.0-32.0 | 29.0-33.0 | 29.0-33.0 |
| Fe% | 0.47-0.7 | 0.4-1.0 | 0.4-1.0 | 0.4-1.0 | 0.4-1.0 |
| Mn% | 0.5-1.0 | 0.5-1.5 | 0.5-1.5 | max.1.0 | 0.2-1.0 |
| C% | max.0.04 | max.0.05 | max.0.06 | max.0.05 | |
| Pb% | max.0.01 | max.0.03 | max.0.01 | max.0.02 | max.0.05 |
| S% | max.0.01 | max.0.02 | max.0.08 | max.0.02 | |
| P% | max.0.02 | max.0.02 | max.0.02 | ||
| Zn% | max.0.20 | max.0.50 | max.0.50 | max.0.50 | |
| Other | max.0.30 | max.0.30 | |||
| Cu% | rem. | rem. | rem. | rem. | +Ni+Fe+Mn min99.5 |
Applications of 45° Short Radius Copper Nickel Elbow
The 45° Short Radius Copper Nickel Elbow is commonly used in compact piping systems where pipeline direction must be changed smoothly but installation space is limited.
Typical industries include:
Shipbuilding
Used in seawater cooling, bilge, ballast, fire-fighting and general service pipelines.
Offshore Oil & Gas
Suitable for offshore platform seawater injection, cooling water and utility piping systems.
Desalination Plants
Applied in intake, brine discharge and seawater treatment pipelines.
Coastal Power Plants
Used in cooling water and seawater circulation systems.
Marine Engineering Projects
Suitable for docks, harbor facilities, floating production units and other marine infrastructure.
You may also be interested in Copper Nickel Reducer for pipeline size transition.
Quality Assurance for 45° SR Copper Nickel Elbow
Every 45° SR Copper Nickel Elbow is manufactured under a strict quality management process to ensure consistent dimensions, reliable mechanical performance, and long-term corrosion resistance. From raw material selection to final inspection, each production stage is carefully monitored to meet customer and project specifications.
Our inspection procedures may include the following quality checks:
- Verification of copper nickel alloy chemical composition
- Dimensional inspection in accordance with applicable standards
- Wall thickness measurement and tolerance verification
- Surface appearance and workmanship inspection
- Bevel angle and end preparation examination
- Positive Material Identification (PMI) upon request
- Hydrostatic testing or additional testing based on project requirements
- Material Test Certificate (MTC EN 10204 3.1) supplied with each shipment when required
For offshore, marine, power generation, and industrial projects, third-party inspection services can also be arranged. Independent inspection organizations such as SGS, BV, LR, ABS, DNV, or other customer-designated agencies are available to verify product quality before shipment.
This comprehensive quality control process helps ensure that every 45° SR Copper Nickel Elbow delivers reliable performance in demanding piping systems while meeting international quality and inspection requirements.
Copper Nickel Elbow Packaging & Worldwide Shipping
Every 45° Short Radius Copper Nickel Elbow is carefully packed to protect the fitting from impact, moisture, and corrosion during international transportation. Our export packaging is designed to meet the requirements of marine, offshore, industrial, and engineering projects worldwide, helping ensure products arrive in excellent condition.
Packaging methods can be selected according to product dimensions, shipping method, destination, and customer requirements.
- Strong wooden cases for heavy-duty protection
- Fumigation-free plywood boxes suitable for international export
- Reinforced cartons for small-size fittings
- Steel or wooden pallets for bulk shipments
- Customized export packaging with customer labels and markings
Each package is securely sealed and clearly identified for convenient handling, storage, customs clearance, and project site management. We support sea freight, air freight, and multimodal transportation to customers around the world.
Why Choose Us as Your 45° SR Copper Nickel Elbow Supplier?
We focus on supplying reliable 45° SR Copper Nickel Elbows for marine, offshore, shipbuilding and industrial piping systems. From raw material selection to final delivery, every step is managed to provide consistent quality, dependable lead times and professional customer support.
Premium Certified Raw Materials
All copper nickel elbows are manufactured from qualified materials with full material traceability, ensuring reliable corrosion resistance, strength and long-term performance.
Professional Technical Support
Our experienced sales and engineering team provides prompt assistance with product selection, technical specifications, quotations and project solutions.
Fast Manufacturing & Global Delivery
Efficient production scheduling and export logistics help shorten lead times, allowing projects to stay on schedule worldwide.
Complete Size & Material Range
Available in multiple sizes, wall thicknesses and copper nickel grades, including CuNi 90/10 (C70600) and CuNi 70/30 (C71500), to meet various piping standards.
OEM & Custom Manufacturing
Custom dimensions, wall thicknesses, markings, packaging and special project requirements are supported according to customer drawings or specifications.
Rich International Export Experience
We have extensive experience serving customers in shipbuilding, desalination, offshore engineering and industrial projects across multiple international markets, with export-ready documentation and secure packaging.
How to Order Copper Nickel Elbow
Looking for a dependable supplier of 45° Short Radius Copper Nickel Elbow fittings?
Our experienced manufacturing team provides high-quality copper nickel pipe fittings with strict quality control, competitive pricing and worldwide delivery. Whether you require standard dimensions or customized solutions, we can help you find the right fitting for your project.
Ask EngineerTo get an accurate quotation for 45° SR Copper Nickel Elbow, please send us the following information:
- Material grade: CuNi 90/10 or CuNi 70/30
- Size and wall thickness
- Standard or drawing
- Quantity
- Required certificates
- Delivery destination
- Any special inspection requirement
You can send your inquiry directly through our Contact Us page or submit a quick request here: Request a Quote.
FAQ – 45° Short Radius Copper Nickel Elbow
What is a 45° Short Radius Copper Nickel Elbow?
A 45° Short Radius Copper Nickel Elbow is a pipe fitting designed to change the flow direction by 45 degrees while using a 1D centerline radius. Its compact design makes it ideal for piping systems where installation space is limited.
What is the difference between a short radius and a long radius elbow?
A short radius elbow has a centerline radius equal to one pipe diameter (1D), while a long radius elbow has a radius of 1.5D. Short radius elbows save installation space, whereas long radius elbows generally produce lower pressure loss.
Which copper nickel grades are available?
We commonly manufacture 45° Short Radius Copper Nickel Elbows in CuNi 90/10 (UNS C70600) and CuNi 70/30 (UNS C71500). Both alloys provide excellent corrosion resistance, especially in seawater environments.
Is this fitting suitable for seawater service?
Yes. Copper nickel alloys are specifically developed for seawater applications and offer outstanding resistance to seawater corrosion, biofouling, erosion, and marine growth, making them ideal for marine piping systems.
Can customized dimensions be supplied?
Yes. We can manufacture according to customer drawings, international standards such as ASME, ASTM, DIN, and project-specific technical requirements.
Which industries commonly use this fitting?
These fittings are widely used in shipbuilding, marine engineering, offshore oil and gas, desalination plants, power stations, industrial cooling systems, and other seawater handling applications.
Do you provide material certificates?
Yes. Material Test Certificates (MTC), inspection reports, dimensional inspection records, and other quality documents can be provided with each shipment upon request.
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