Nascent Fittings Inc.·Alloy Steel
Alloy Steel BULK HEAD UNION
Instrumentation & process tube fittings in SS and alloys. Compression elbows, tees & unions with MTCs and worldwide project supply.

- Material
- Alloy Steel
- Size
- Common tube OD ranges
- Standard
- ASME B31.3
- Corrosion
- Moderate
About
Alloy Steel Tube Fittings
Product overview combined with Alloy Steel 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 manufacture, supply and export Bulkhead Union Fittings which are very useful in various types of connecting functions in the big industries. Nascent fittings is a renowned Manufacturer & Exporter of Bulkhead Union Tube Fittings in India and throughout the world. Our Bulkhead Unions are of the highest quality and have been strength tested to international standards in our ultra-modern laboratory. Our in-house production of Bulkhead Union is manufactured with excellent quality of raw materials to suit the fixing work mainly in oil & gas, petrochemical, water treatment plant etc. Nascent is one of the leading designers and fabricators of Bulkheads for the construction, underwater construction, nuclear, and environmental services industries. It specializes in both standard and engineered-to-order (temporary and permanent) pressure barriers, specialty gates, and valves, it also offers a wide range of Bulkhead Unions offered by us is a kind of union that finds wide application in the tube fittings for connecting tube to tube fitting. Bulkhead Unions offered by Nascent are of high tensile strength tested in our ultra modern laboratory as per international standards. Bulkheads Unions offered by us are highly durable and have long life due to superior quality. This product can be customized as per the requirement and available at competitive price. All These products of Nascent corporation have been well demanded and extensively used by the clients of diverse categories in different sizes.
Typical applications
- Power Generation
- Thermal Power Plants
- Refineries
- Petrochemical Plants
- Oil & Gas
- Pressure Vessels
Configurations
Alloy Steel Tube Fittings types
Open a type for drawings-aligned specifications.

Alloy Steel AIR HEADER MANIFOLDS

Alloy Steel BALL VALVE

Alloy Steel BRANCH TEE

Alloy Steel BULK HEAD UNION

Alloy Steel CHECK VALVE

Alloy Steel CONDENSATE POT

Alloy Steel FEMALE CONNECTOR

Alloy Steel FEMALE TEE

Alloy Steel HOSE CONNECTIONS

Alloy Steel MALE CONNECTOR

Alloy Steel MANIFOLDS VALVE

Alloy Steel NEEDLE VALVE

Alloy Steel OD CAP

Alloy Steel OD PLUG

Alloy Steel REDUCING UNION

Alloy Steel RUN TEE
Material scope
Alloy Steel specification
Dimensional and grade range typically supplied for BULK HEAD UNION in this material.
- Grade
- ASTM/ASME A/SA A105, LF2
- Grade
- ASTM/ASME A/SA F11, F22, F91 F12, F5, F9,
- Grade
- ASTM/ASME A/SA-182, 310, 321, 317L, 347, 309, 409, 410, 420, 430, 440, 904L, F304/304L/304H, 316/316L/316H/316Ti etc.
- Grade
- Copper Nickel: C70600(90:10), C71500(70:30)
- Grade
- Hastelloy: UNS N10276, N06455, N06022, N10665,
- Grade
- Monel: UNS N04400, N05500,
- Grade
- Aluminium: 2024, 6061, 6063, 6101, 7075.
- Grade
- Titanium: Grade 1, Grade 2, Grade 4, Grade 5, Grade 6, Grade 7, Grade 9, Grade 19, Grade 23.
Alloy Steel grades
Available grades for Tube Fittings
Drawn from the Alloy Steel catalog and this product’s material specification.
F1
Low alloy steel with improved temperature resistance.
Best for · Moderate temperature service
F5
5% chromium alloy steel with improved oxidation resistance.
Best for · High temperature applications
F9
9% chromium alloy steel with superior heat resistance.
Best for · Elevated temperature service
F11
Chrome moly alloy steel offering excellent creep resistance.
Best for · High-pressure steam service
F22
2.25% chromium and 1% molybdenum alloy steel.
Best for · High temperature pressure systems
F91
Premium 9Cr-1Mo-V alloy steel with exceptional creep resistance.
Best for · Ultra-supercritical power plants
WP12 / F12
1.25Cr-0.5Mo alloy steel buttweld grade related to ASTM A234 WP12 / A182 F12 for elevated temperature service.
Best for · Chrome-moly buttweld fittings
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
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
View
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
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
3ASME 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 A182
ASTMForged or rolled alloy and stainless steel pipe flanges, fittings, valves and parts.
- Scope
- Forged and rolled stainless, alloy and duplex steel components for high-temperature service.
- Applies To
- Flanges, fittings, valves and pressure parts
- Typical Grades
- F304/L, F316/L, F11, F22, F91, F51/F60 and related
ASME SA182
ASMEASME equivalent of ASTM A182 for forged stainless and alloy components.
- Scope
- Boiler and pressure vessel code adoption of ASTM A182 material requirements.
- Related
- ASTM A182
Certificates
5EN 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.
NACE MR0175
Materials for use in H₂S-containing environments in oil and gas production.
- Type
- Service / sour-service requirement
- Scope
- Limits hardness, microstructure and material selection for sulfide stress cracking resistance.
- Applies To
- Carbon, alloy and CRA piping products ordered for sour service
- Benefit
- Supports upstream oil & gas projects specifying sour-service compliance.
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 Alloy Steel BULK HEAD UNION?
Share sizes, material grade and quantity — manufacturing options and delivery timelines follow.







