Nascent Fittings Inc.·Copper Alloy
Copper Alloy OD PLUG
Instrumentation & process tube fittings in SS and alloys. Compression elbows, tees & unions with MTCs and worldwide project supply.

- Material
- Copper Alloy
- Size
- Common tube OD ranges
- Standard
- ASME B31.3
- Corrosion
- Excellent
About
Copper Alloy Tube Fittings
Product overview combined with Copper Alloy material context for project selection.
Tube fittings for instrumentation, hydraulic and process tubing connections. Nascent supplies compression, bite-type and related tube fittings in stainless steel and compatible alloys for leak-tight joints under vibration and pressure cycling.
Available in elbows, tees, unions, connectors and adapters sized to common tube OD standards, with material certificates for oil & gas, chemical and utility systems.
Manufacturing note
Nascent fittings is a recognized manufacturer and supplier of Fitting End Closure, which are not designed for service in wet corrosive environments. The Fitting End Closure is the low carbon version of the alloy, and is operated for ease of fabrication. Super Duplex Steel Fitting End Closure are prone to intergranular corrosion after long term exposure at high temperatures. Tube Plugs (Fitting End Closures) are available in a variety of sizes and shapes with a variety of components. However, due to its high chromium content, these Fitting End Closure is more corrosion resistant than most heat resistant alloys. Monel Alloy Fitting End Closure has a carbon content restricted to exclude the lower end, so is the grade of choice for high temperature applications. The high chromium content of Hastelloy Alloy Fitting End Closure intends to increase high temperature properties and gives good aqueous corrosion resistance. Nascent fittings are equipped with cutting-edge technology and an expert workforce to ensure that work is enhanced.
Typical applications
- Marine
- Shipbuilding
- Offshore Platforms
- Heat Exchangers
- Condensers
- Power Generation
Configurations
Copper Alloy Tube Fittings types
Open a type for drawings-aligned specifications.

Copper Alloy AIR HEADER MANIFOLDS

Copper Alloy BALL VALVE

Copper Alloy BRANCH TEE

Copper Alloy BULK HEAD UNION

Copper Alloy CHECK VALVE

Copper Alloy CONDENSATE POT

Copper Alloy FEMALE CONNECTOR

Copper Alloy FEMALE TEE

Copper Alloy HOSE CONNECTIONS

Copper Alloy MALE CONNECTOR

Copper Alloy MANIFOLDS VALVE

Copper Alloy NEEDLE VALVE

Copper Alloy OD CAP

Copper Alloy OD PLUG

Copper Alloy REDUCING UNION

Copper Alloy RUN TEE
Copper Alloy grades
Available grades for Tube Fittings
Drawn from the Copper Alloy catalog and this product’s material specification.
UNS C70600 (Cu-Ni 90/10)
UNS C70600
Copper Nickel 90/10 alloy with excellent seawater corrosion resistance, biofouling resistance, and long service life.
Best for · General marine and seawater service
UNS C71500 (Cu-Ni 70/30)
UNS C71500
Copper Nickel 70/30 alloy with higher nickel content providing enhanced corrosion resistance and superior strength in aggressive seawater environments.
Best for · High-velocity seawater and offshore service
UNS C71640
UNS C71640
Enhanced Copper Nickel alloy developed for demanding marine and offshore applications requiring superior corrosion resistance and mechanical strength.
Best for · Critical offshore and seawater applications
Also available in
Other materials for this product
View Tube Fittings in another material grade family.
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Material
Aluminium
Tube Fittings
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Material
Stainless Steel
Tube Fittings
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Material
Alloy Steel
Tube Fittings
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Material
Duplex Steel
Tube Fittings
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Material
Titanium
Tube Fittings
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Material
Carbon Steel
Tube Fittings
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Material
Monel
Tube Fittings
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Material
Hastelloy
Tube Fittings
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Material
Copper
Tube Fittings
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Material
Low Temperature Carbon Steel
Tube Fittings
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Material
Nickel Alloy
Tube Fittings
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Material
Cupro Nickel
Tube Fittings
ViewCompliance
Standards & certificates
Specifications and documentation typically referenced for this product line — details from our shared compliance catalog.
Standards
5ASME B31.3
ASMEProcess piping design code.
- Scope
- Design, materials, fabrication, assembly, erection, examination, inspection and testing of process piping.
- Applies To
- Petroleum, chemical, pharmaceutical, textile, paper, semiconductor and related process plants
ASTM / ASME SB61
ASTM / ASMESteam or valve bronze castings.
- Scope
- Composition and property requirements for bronze castings used under pressure.
- Applies To
- Valves, fittings and flanges in marine and industrial service
ASTM / ASME SB62
ASTM / ASMEComposition bronze or ounce metal castings.
- Scope
- Cast bronze for pressure-containing valves and fittings.
- Applies To
- Valves, fittings and flanges
ASTM B151
ASTMCopper-nickel-zinc alloy (nickel silver) and copper-nickel rod and bar.
- Scope
- Rod and bar products in copper-nickel alloys.
- Applies To
- Machined fittings, fasteners and bar stock components
ASTM B152
ASTMCopper sheet, strip, plate, and rolled bar.
- Scope
- Copper flat products for fabrication and cladding.
- Applies To
- Sheet/plate feed stock for fabricated copper components
Certificates
4EN 10204 3.1
Mill test certificate with inspection by the manufacturer’s authorized inspection representative, independent of manufacturing.
- Type
- Inspection document (MTC)
- Scope
- States chemical analysis, mechanical test results and heat / lot identification for the supplied material.
- Documentation
- EN 10204 Type 3.1
- Benefit
- Provides traceable material evidence required on most industrial RFQs.
ISO 9001
Quality Management System certification.
- Type
- Quality Management System
- Scope
- Demonstrates a documented QMS covering process control, traceability and continual improvement across manufacturing and supply.
- Benefit
- Assures buyers of consistent product quality and controlled production practices.
- Issued As
- Third-party accredited certificate
PED
Pressure Equipment Directive compliance for equipment placed on the EU market.
- Type
- Regulatory conformity
- Scope
- Design and conformity assessment requirements for pressure equipment and assemblies in the European Union.
- Benefit
- Enables supply of pressure-rated components into EU projects when PED conformity is required.
- Related
- CE marking / Notified Body routes as applicable
IBR
Indian Boiler Regulations approval for boiler-quality piping materials and components.
- Type
- Regulatory approval
- Scope
- Materials and components intended for use under Indian boiler installations.
- Benefit
- Required for many power and process projects under IBR jurisdiction in India.
People also ask
Questions about Tube Fittings
Nascent Fittings Inc. answers common buyer questions for this line.
Does Nascent Fittings Inc. manufacture Tube Fittings?+
Yes. Nascent Fittings Inc. manufactures and supplies Tube Fittings for industrial piping projects, with material grades and sizes aligned to project specifications.
Can Nascent Fittings Inc. export Tube Fittings worldwide?+
Yes. We export Tube Fittings globally with standard export packaging, material test certificates, and documentation support for international shipments.
What materials are available for Tube Fittings?+
Tube Fittings is available in carbon steel, alloy steel, stainless steel, duplex, nickel alloys, copper alloys, aluminium, titanium and other project-specific materials as required.
Need pricing for Copper Alloy OD PLUG?
Share sizes, material grade and quantity — manufacturing options and delivery timelines follow.







