When industries require strong, corrosion-resistant piping systems for marine, offshore, and heat exchanger applications, Copper-Nickel 70/30 Butt Weld Fittings are one of the most trusted solutions. Manufactured from UNS C71500, this alloy offers excellent resistance to seawater corrosion, high strength, and long service life.
As a reliable Cuni 70/30 Fittings manufacturer in India, we supply high-quality Copper Nickel 70/30 Pipe Fittings that meet international standards such as ASTM B466 UNS C71500 Copper Nickel 70/30 Pipe Fittings, ASME SB122 Copper Nickel 70/30 Pipe Fittings, and ASTM B122 Cu-Ni 70/30 Buttweld Fittings. Our fittings are widely exported across global markets for use in demanding environments.
What is Copper-Nickel 70/30 (UNS C71500)?
UNS C71500 is a copper-based alloy containing approximately:
- 70% Copper
- 30% Nickel
- Small additions of iron and manganese
This combination gives the alloy excellent resistance to:
- Seawater corrosion
- Stress corrosion cracking
- Biofouling
- Erosion in high-velocity water systems
Because of these properties, Cu-Ni 70/30 Buttweld Fittings are commonly used in marine piping systems, desalination plants, power generation, shipbuilding, and offshore platforms. The material is also known by:
- Cupro Nickel UNS C71500
- Werkstoff Nr. 2.0882
- Copper Nickel DIN 2.0882
Global Exporter of Copper Nickel 70/30 Pipe Fittings
We are a recognized Copper Nickel UNS C71500 Pipe Fittings Exporterand Copper Nickel 70/30 Pipe Fittings Exporter serving clients across:
- Middle East
- Europe
- Southeast Asia
- Africa
- North America
Our logistics team ensures safe packaging using wooden crates, bubble wrapping, and corrosion-resistant coatings to prevent transit damage.
Types of Copper Nickel 70/30 Butt Weld Fittings We Offer
We manufacture and export a wide range of Copper Nickel 70/30 Welded Pipe Fittings in seamless and welded forms:
Elbows
- Cu-Ni 70/30 elbow
- Cupro Nickel UNS C71500 90 deg. Elbow
- Used to change flow direction in piping systems.
Tees
- Cu-Ni 70/30 (C71500) Tee
- Designed for dividing or combining fluid flow.
Reducers
- Werkstoff Nr. 2.0882 Reducer
- Concentric and eccentric types available.
Crosses
- Copper Nickel DIN 2.0882 Crosses
- Used for four-way pipe connections.
All fittings are available in standard and custom dimensions as per ASME B16.9, B16.28, and client drawings.
Why Choose Copper-Nickel 70/30 Butt Weld Fittings?
- Superior Seawater Resistance: Copper Nickel 70/30 is specially designed for marine conditions. It resists pitting and crevice corrosion even in highly saline environments.
- High Mechanical Strength: Compared to 90/10 Cu-Ni, 70/30 grade offers better strength and durability, making it suitable for high-pressure applications.
- Long Service Life: Due to its natural anti-fouling properties, it reduces marine organism buildup, lowering maintenance costs.
- Excellent Fabrication & Weldability: Copper Nickel 70/30 Pipe Fittings can be easily welded and fabricated without complex heat treatments.
Technical Specifications – ASTM B466 UNS C71500 Copper Nickel 70/30 Pipe Fittings
| Specification | Standard |
|---|---|
| ASTM B466 | Seamless Copper-Nickel Pipe |
| ASTM B122 | Copper-Nickel Forged & Buttweld Fittings |
| Standards | ASTM B366 Cupro Nickel 90-10 Buttweld Fittings |
| Equivalent Standard | ASME SB366 Copper Nickel 90/10 Buttweld Fittings |
| ASME SB122 | Copper Nickel 70/30 Pipe Fittings |
| UNS Number | C71500 |
| DIN / Werkstoff | 2.0882 |
| Size Range | ½” NB to 48” NB |
| Type | Seamless / Welded |
| End Connection | Butt Weld |
| Pressure Rating | As per ASME B16.9 |
All ASTM B122 Cu-Ni 70/30 Buttweld Fittings supplied by us are tested for dimensional accuracy, chemical composition, and mechanical strength.
Chemical Composition of UNS C71500
| Element | Composition (%) |
|---|---|
| Copper (Cu) | 69.0 – 71.0 |
| Nickel (Ni) | 29.0 – 33.0 |
| Iron (Fe) | 0.40 – 1.00 |
| Manganese (Mn) | 0.50 – 1.00 |
| Carbon (C) | 0.05 max |
This balanced composition gives Copper Nickel 70/30 Pipe Fittings their strength and corrosion resistance.
Mechanical Properties of Copper Nickel 70/30
| Property | Value |
|---|---|
| Tensile Strength | 360 – 480 MPa |
| Yield Strength | 125 – 150 MPa |
| Elongation | 30% (min) |
| Hardness | 100 – 120 HB |
These mechanical properties make Cu-Ni 70/30 (C71500) Tee, elbows, and reducers suitable for moderate to high-pressure systems.
Comparison: Cu-Ni 70/30 vs Cu-Ni 90/10
| Property | 70/30 | 90/10 |
|---|---|---|
| Strength | Higher | Moderate |
| Seawater Resistance | Excellent | Very Good |
| Cost | Slightly Higher | Lower |
| Application | Offshore & high pressure | General marine |
For heavy-duty marine systems, Cu-Ni 70/30 Buttweld Fittings are generally preferred.
Applications of Cu-Ni 70/30 Buttweld Fittings
Because of our experience supplying to marine and industrial projects, we understand the performance requirements in real-world environments. Our Copper Nickel UNS C71500 Pipe Fittings Manufacturer expertise allows us to serve sectors such as:
- Shipbuilding & Naval vessels
- Offshore oil & gas platforms
- Power plants (condenser and cooling systems)
- Desalination plants
- Heat exchangers
- Chemical processing plants
These fittings perform exceptionally well in high-velocity and corrosive fluid systems.
Why Choose Us as Your Copper Nickel 90/10 Buttweld Fittings Manufacturers?
We focus on technical knowledge, practical experience, and transparent business practices.
- Strict Quality Control: All ASME SB366 Copper Nickel 90/10 Buttweld Fittings are tested before dispatch.
- Custom Manufacturing: We produce fittings as per drawings, including special wall thicknesses and non-standard dimensions.
- Fast Global Delivery: Strong inventory support ensures quick shipping.
- Complete Documentation: We provide test certificates, inspection reports, and compliance documents for project approval.
Request a Quote for Copper-Nickel 70/30 Butt Weld Fittings
If you are looking for high-performance Copper-Nickel 70/30 Butt Weld Fittings (UNS C71500), we provide durable and corrosion-resistant solutions designed for marine and industrial applications. As a trusted Copper Nickel UNS C71500 Pipe Fittings Manufacturer and Copper Nickel 70/30 Pipe Fittings Exporter, we ensure every fitting meets strict quality standards and performs reliably in demanding environments.
Whether you need a Cupro Nickel UNS C71500 90 deg. Elbow, Werkstoff Nr. 2.0882 Reducer, or a full project supply of Copper Nickel DIN 2.0882 Crosses, we can meet both small and large quantity requirements.
For project inquiries, bulk orders, or technical support, our team is ready to assist you with the right Cu-Ni 70/30 solution tailored to your requirements.
Request Your Copper-Nickel 70/30 Buttweld Fittings Quote Today!
