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

- Material
- Hastelloy
- Size
- Common tube OD ranges
- Standard
- ASME B31.3
- Corrosion
- Exceptional
About
Hastelloy Tube Fittings
Product overview combined with Hastelloy 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
- Chemical Processing
- Petrochemical
- Pollution Control
- Oil & Gas
- Pharmaceutical
- Pulp & Paper
Configurations
Hastelloy Tube Fittings types
Open a type for drawings-aligned specifications.

Hastelloy AIR HEADER MANIFOLDS

Hastelloy BALL VALVE

Hastelloy BRANCH TEE

Hastelloy BULK HEAD UNION

Hastelloy CHECK VALVE

Hastelloy CONDENSATE POT

Hastelloy FEMALE CONNECTOR

Hastelloy FEMALE TEE

Hastelloy HOSE CONNECTIONS

Hastelloy MALE CONNECTOR

Hastelloy MANIFOLDS VALVE

Hastelloy NEEDLE VALVE

Hastelloy OD CAP

Hastelloy OD PLUG

Hastelloy REDUCING UNION

Hastelloy RUN TEE
Hastelloy grades
Available grades for Tube Fittings
Drawn from the Hastelloy catalog and this product’s material specification.
Hastelloy C-276
UNS N10276
Nickel-molybdenum-chromium alloy for aggressive chemical service.
Best for · Severe corrosion and mixed oxidizing/reducing media
Hastelloy C-22
UNS N06022
Enhanced resistance to oxidizing aqueous media and localized corrosion.
Best for · Chemical processing and pollution control
Hastelloy B-2
UNS N10665
Nickel-molybdenum alloy designed for hydrochloric acid service.
Best for · Reducing acid environments
Hastelloy C-4 (N06455)
UNS N06455
Nickel-chromium-molybdenum alloy with excellent high-temperature stability and corrosion resistance.
Best for · High-temperature chemical service
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
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
Copper 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
4ASME 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 B564
ASTMNickel alloy forgings.
- Scope
- Forged nickel alloy flanges, fittings and similar parts.
- Applies To
- Forged flanges and fittings in nickel alloys
ASTM B366
ASTMFactory-made wrought nickel and nickel alloy fittings.
- Scope
- Wrought nickel-alloy buttweld and related fittings.
- Applies To
- Nickel, Monel, Inconel, Hastelloy and similar fittings
ASTM B574
ASTMLow-carbon nickel-chromium-molybdenum, low-carbon nickel-molybdenum-chromium, and low-carbon nickel-molybdenum-chromium-tantalum alloy rod.
- Scope
- Hastelloy and related Ni-Cr-Mo alloy bar products.
- Applies To
- Machined Hastelloy fittings and fasteners
Certificates
3ISO 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
EN 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.
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 Hastelloy OD PLUG?
Share sizes, material grade and quantity — manufacturing options and delivery timelines follow.







