Stainless Steel 347 Pipe Fittings Manufacturer & Supplier in India, USA & Turkey
Mcneil Instruments is a Stainless Steel 347 Pipe Fittings Manufacturer, Supplier and Exporter in India, supplying high-performance SS 347 pipe fittings to industrial customers and projects across the USA, Turkey and other international markets. Based in Mumbai, Maharashtra, India, Mcneil Instruments supplies Stainless Steel 347 fittings for high-temperature piping, petrochemical plants, refineries, power generation, chemical processing, oil and gas, aerospace, heat treatment and other demanding industrial applications.
Stainless Steel 347 Pipe Fittings are manufactured from a niobium-stabilized austenitic stainless steel grade designed to provide resistance to intergranular corrosion and reliable performance at elevated temperatures. The stabilization provided by niobium helps reduce chromium carbide precipitation during welding and prolonged exposure to elevated temperatures.
Mcneil Instruments supplies ASTM A403 WP347 Pipe Fittings in different sizes, schedules and configurations for customers in India, USA and Turkey. The range includes elbows, tees, reducers, caps, stub ends, crosses, bends and other buttweld fitting configurations.
From its supply base in Mumbai, India, Mcneil Instruments supports domestic requirements and export orders for customers requiring SS 347 Pipe Fittings in the United States and Turkey.
Stainless Steel 347 Pipe Fittings
Stainless Steel 347 Pipe Fittings are used to connect piping components, change flow direction, create branch connections, reduce pipe diameter and terminate piping systems.
SS 347 is a stabilized austenitic stainless steel containing niobium, also known as columbium. This stabilization makes the grade particularly useful for applications involving welding and elevated-temperature exposure.
Compared with standard austenitic grades, SS 347 is often selected where high-temperature stability, resistance to intergranular corrosion and resistance to thermal cycling are important.
Mcneil Instruments supplies SS 347 pipe fittings from India for industrial requirements in the USA and Turkey, according to applicable material, dimensional and project specifications.
ASTM A403 WP347 Pipe Fittings
ASTM A403 WP347 is a commonly specified material designation for wrought austenitic stainless steel pipe fittings used in pressure piping applications.
ASTM A403 WP347 fittings combine the corrosion resistance of austenitic stainless steel with the high-temperature stability associated with the niobium-stabilized 347 grade.
Mcneil Instruments supplies ASTM A403 WP347 Pipe Fittings from India for industrial projects in the USA and Turkey, with product specifications selected according to the customer’s engineering and procurement requirements.
Applicable dimensional standards may include ASME B16.9, ASME B16.28 and MSS SP-43, depending on the fitting configuration. ASTM A403 covers wrought stainless steel fittings for pressure piping applications.
Stainless Steel 347 Pipe Fittings Supplier in USA
Mcneil Instruments supplies Stainless Steel 347 Pipe Fittings for industrial requirements in the USA from its India-based manufacturing and export operations.
SS 347 fittings can be considered for American industrial projects involving elevated-temperature piping, refinery systems, chemical processing, power generation, oil and gas and other applications where resistance to sensitization and high-temperature service is important.
Customers in the USA can specify:
- Fitting type
- SS 347 material grade
- Nominal pipe size
- Schedule
- Quantity
- ASTM A403 specification
- ASME dimensional standard
- Testing requirements
- Inspection documentation
For project orders, technical drawings and purchase specifications can be provided for evaluation.
Stainless Steel 347 Pipe Fittings Supplier in Turkey
Mcneil Instruments supplies Stainless Steel 347 Pipe Fittings for industrial projects in Turkey, supporting requirements from its India-based manufacturing and export operations.
SS 347 can be considered for piping systems exposed to elevated temperatures, thermal cycling and corrosive industrial environments.
Applications in Turkey may include:
- Petrochemical processing
- Oil and gas
- Refineries
- Chemical processing
- Power generation
- Heat treatment
- Industrial furnaces
- Process piping
- EPC projects
Turkish customers can specify the required material grade, fitting type, size, schedule, quantity and ASTM, ASME, DIN or EN requirements when requesting a quotation.
Stainless Steel 347 Pipe Fittings Supplier in India
Mcneil Instruments is a Stainless Steel 347 Pipe Fittings Supplier in India, operating from Mumbai, Maharashtra.
The company supplies SS 347 elbows, tees, reducers, caps, stub ends, crosses and other configurations for industrial piping systems.
Indian customers can provide their required:
- Material grade
- Fitting configuration
- Nominal pipe size
- Schedule
- Quantity
- Applicable standard
- Testing requirements
- Inspection requirements
Mcneil Instruments also supports export requirements for USA and Turkey, allowing international customers to source SS 347 pipe fittings from India according to project specifications.
Stainless Steel 347 Pipe Fittings Exporter from India to USA & Turkey
Mcneil Instruments supplies Stainless Steel 347 Pipe Fittings from India to the USA and Turkey for industrial and project-based requirements.
Export orders can include ASTM A403 WP347 fittings in different configurations, sizes and schedules according to customer specifications.
For international enquiries, customers should provide the destination country, fitting type, material grade, nominal size, schedule, quantity, applicable standard and documentation requirements.
Types of Stainless Steel 347 Pipe Fittings
Mcneil Instruments supplies a range of SS 347 Pipe Fittings for customers in India, USA and Turkey.
Stainless Steel 347 Elbows
SS 347 elbows are used to change the direction of piping systems. Common configurations include 45-degree, 90-degree and 180-degree elbows, with long-radius and short-radius options.
Stainless Steel 347 Tees
SS 347 tees create branch connections in process piping systems. Equal and reducing tee configurations can be supplied according to piping requirements.
Stainless Steel 347 Reducers
SS 347 reducers connect pipes of different nominal diameters. Concentric and eccentric configurations can be selected according to the piping arrangement.
Stainless Steel 347 End Caps
SS 347 end caps are used to close or terminate pipe sections in industrial piping systems.
Stainless Steel 347 Stub Ends
Stub ends are used with lap joint flange assemblies and can be useful where regular dismantling and maintenance are required.
Stainless Steel 347 Cross Fittings
SS 347 cross fittings provide four-way connections in piping layouts requiring multiple branches.
Stainless Steel 347 Pipe Bends
SS 347 bends are used where a gradual change in piping direction is required. Custom bending radii can be considered according to project requirements.
Stainless Steel 347 Pipe Fittings Specifications
| Parameter | Typical Specification |
| Material | Stainless Steel 347 |
| UNS Designation | UNS S34700 |
| ASTM Standard | ASTM A403 |
| Grade | WP347 |
| Size Range | 1/2″ NB and above, depending on fitting type |
| Schedule | SCH 10, SCH 20, SCH 40, SCH 80, SCH 160, XXS and others |
| Construction | Seamless / Welded / Fabricated |
| Types | Elbow, Tee, Reducer, Cap, Stub End, Cross, Bend |
| Dimensional Standards | ASME B16.9, ASME B16.28, MSS SP-43 |
| Finish | Pickled / Polished / As required |
Actual size and schedule availability should be confirmed against the specific fitting type and project specification.
Chemical Composition of Stainless Steel 347
Stainless Steel 347 is an austenitic stainless steel stabilized with niobium.
| Element | Typical Requirement |
| Carbon | 0.08% max |
| Chromium | 17.00–19.00% |
| Nickel | 9.00–13.00% |
| Niobium + Tantalum | 10 × C min to 1.00% max |
| Manganese | 2.00% max |
| Silicon | 1.00% max |
| Phosphorus | 0.045% max |
| Sulfur | 0.030% max |
Material chemistry should always be verified against the applicable ASTM material specification and supplied material test certificate. The current Mcneil page uses the same core chemistry ranges.
Mechanical Properties of Stainless Steel 347 Pipe Fittings
Typical mechanical requirements associated with Grade 347 include:
| Property | Typical Requirement |
| Tensile Strength | 515 MPa min |
| Yield Strength | 205 MPa min |
| Elongation | 40% min |
Actual requirements should be confirmed against the applicable material standard and product form.
Applications of Stainless Steel 347 Pipe Fittings
Power Generation Industry
Used in boilers, superheaters, steam lines, and high-temperature piping systems.
Petrochemical Industry
Suitable for elevated temperature processing and refinery operations.
Oil & Gas Industry
Reliable performance in critical process piping systems.
Aerospace Industry
Used in aircraft exhaust systems and high-temperature structural components.
Chemical Processing Plants
Suitable for corrosive and temperature-intensive applications.
Heat Treatment Industry
Widely used in furnaces and thermal processing equipment.
Refinery Industry
Excellent for high-temperature refinery piping systems.
EPC Projects
Preferred for industrial projects requiring long-term thermal stability.
Industries Using Stainless Steel 347 Pipe Fittings
- Power Generation Industry
- Oil & Gas Industry
- Petrochemical Industry
- Refinery Industry
- Aerospace Industry
- Chemical Processing Plants
- Heat Treatment Industry
- Industrial Furnace Manufacturing
- EPC Contractors
- Infrastructure Projects
Why Choose Stainless Steel 347 Pipe Fittings?
Niobium Stabilization
The addition of niobium helps stabilize the material against chromium carbide precipitation during welding and elevated-temperature exposure.
High-Temperature Performance
SS 347 is suitable for applications involving elevated temperatures and repeated heating and cooling cycles.
Resistance to Intergranular Corrosion
The stabilized structure helps improve resistance to intergranular corrosion following welding and high-temperature exposure.
Good Oxidation Resistance
The grade provides useful oxidation resistance for selected elevated-temperature industrial applications.
Good Weldability
SS 347 can be welded using commonly used stainless steel welding processes, making it suitable for fabricated piping systems.
Thermal Stability
Its stabilization characteristics make SS 347 useful where thermal cycling and prolonged heat exposure are part of the operating environment.
Applications of Stainless Steel 347 Pipe Fittings
Power Generation
SS 347 pipe fittings can be used in selected high-temperature piping systems, boilers and power-generation equipment.
Oil & Gas Industry
SS 347 fittings can be used in selected oil and gas process and utility applications where elevated-temperature performance is required.
Petrochemical Industry
Refineries and petrochemical plants use stabilized stainless steel grades in selected high-temperature process systems.
Chemical Processing
SS 347 is suitable for selected chemical processing environments where corrosion resistance and elevated-temperature stability are required.
Refinery Applications
The grade can be used in selected refinery piping systems exposed to elevated temperatures and thermal cycling.
Aerospace Industry
SS 347 is used in selected aerospace and high-temperature applications where stabilized stainless steel performance is required.
Heat Treatment
SS 347 fittings can be considered for heat-treatment equipment and process systems exposed to elevated temperatures.
Industrial Furnaces
Stabilized stainless steel fittings can be used in selected furnace and high-temperature process equipment.
These applications are relevant to industrial projects in India, USA and Turkey, subject to service conditions and material compatibility.
Stainless Steel 347 vs Stainless Steel 321 Pipe Fittings
SS 347 and SS 321 are both stabilized austenitic stainless steel grades designed to improve resistance to intergranular corrosion after exposure to elevated temperatures.
The primary difference is the stabilizing element:
- SS 321 uses titanium
- SS 347 uses niobium/columbium
SS 347 is often selected where its specific high-temperature properties, stabilization characteristics or fabrication requirements make it more appropriate for the application.
The final material selection should be based on temperature, service medium, welding procedure and project specification.
Stainless Steel 347 vs 347H Pipe Fittings
SS 347 and SS 347H are closely related stabilized stainless steel grades.
SS 347H has a higher carbon content, which provides higher strength at elevated temperatures. SS 347 is generally selected where standard 347 properties are appropriate, while 347H may be specified for more demanding high-temperature applications.
The correct grade should be selected according to the applicable engineering specification and operating conditions.
Available Types of ASTM A403 WP347 Pipe Fittings
- ASTM A403 WP347 45 Degree Elbow
- ASTM A403 WP347 90 Degree Elbow
- ASTM A403 WP347 180 Degree Elbow
- ASTM A403 WP347 Equal Tee
- ASTM A403 WP347 Reducing Tee
- ASTM A403 WP347 Concentric Reducer
- ASTM A403 WP347 Eccentric Reducer
- ASTM A403 WP347 End Cap
- ASTM A403 WP347 Stub End
- ASTM A403 WP347 Cross
Global Export Markets for Stainless Steel 347 Pipe Fittings
We export Stainless Steel 347 Pipe Fittings to:
- United States
- Canada
- Mexico
- Brazil
- Argentina
- United Kingdom
- Germany
- France
- Italy
- Spain
- Netherlands
- Belgium
- Poland
- Sweden
- Norway
- Switzerland
- Turkey
- United Arab Emirates (UAE)
- Saudi Arabia
- Qatar
- Oman
- Kuwait
- Bahrain
- Egypt
- South Africa
- Nigeria
- Kenya
- Australia
- New Zealand
- Singapore
- Malaysia
- Indonesia
- Thailand
- Vietnam
- South Korea
- Japan
- Philippines
Why Buy Stainless Steel 347 Pipe Fittings from Mcneil Instruments?
Leading Stainless Steel 347 Pipe Fittings Manufacturer
Extensive expertise in manufacturing premium-quality stabilized stainless steel fittings.
Global Export Network
Supplying customers across major industrial markets worldwide.
ASTM & ASME Compliant Products
Manufactured according to international standards.
Competitive Pricing
Cost-effective solutions without compromising quality.
Fast Delivery Schedule
Prompt dispatch and reliable logistics support.
Complete Traceability
Full documentation and material certification provided.
Third-Party Inspection Available
Independent inspection services available upon request.
Large Ready Stock Availability
Immediate stock availability for urgent project requirements.
Custom Sizes & Thicknesses
Manufactured according to customer specifications.
Available Types of ASTM A403 WP347 Pipe Fittings
- ASTM A403 WP347 45 Degree Elbow
- ASTM A403 WP347 90 Degree Elbow
- ASTM A403 WP347 180 Degree Elbow
- ASTM A403 WP347 Equal Tee
- ASTM A403 WP347 Reducing Tee
- ASTM A403 WP347 Concentric Reducer
- ASTM A403 WP347 Eccentric Reducer
- ASTM A403 WP347 End Cap
- ASTM A403 WP347 Stub End
- ASTM A403 WP347 Cross
Global Export Markets for Stainless Steel 347 Pipe Fittings
We export Stainless Steel 347 Pipe Fittings to:
- United States
- Canada
- Mexico
- Brazil
- Argentina
- United Kingdom
- Germany
- France
- Italy
- Spain
- Netherlands
- Belgium
- Poland
- Sweden
- Norway
- Switzerland
- Turkey
- United Arab Emirates (UAE)
- Saudi Arabia
- Qatar
- Oman
- Kuwait
- Bahrain
- Egypt
- South Africa
- Nigeria
- Kenya
- Australia
- New Zealand
- Singapore
- Malaysia
- Indonesia
- Thailand
- Vietnam
- South Korea
- Japan
- Philippines
Why Buy Stainless Steel 347 Pipe Fittings from Mcneil Instruments?
Leading Stainless Steel 347 Pipe Fittings Manufacturer
Extensive expertise in manufacturing premium-quality stabilized stainless steel fittings.
Global Export Network
Supplying customers across major industrial markets worldwide.
ASTM & ASME Compliant Products
Manufactured according to international standards.
Competitive Pricing
Cost-effective solutions without compromising quality.
Fast Delivery Schedule
Prompt dispatch and reliable logistics support.
Complete Traceability
Full documentation and material certification provided.
Third-Party Inspection Available
Independent inspection services available upon request.
Large Ready Stock Availability
Immediate stock availability for urgent project requirements.
Custom Sizes & Thicknesses
Manufactured according to customer specifications.
Why Choose Mcneil Instruments for Stainless Steel 347 Pipe Fittings?
Mcneil Instruments supplies Stainless Steel 347 Pipe Fittings from India to customers in the USA and Turkey.
Key advantages include:
- ASTM A403 WP347 options
- SS 347 pipe fitting range
- Multiple fitting configurations
- Different sizes and schedules
- Technical specification support
- Quality inspection options
- Material documentation
- Export-oriented supply
- Support for industrial and EPC projects
- Custom configurations based on project requirements
With its base in Mumbai, India, Mcneil Instruments supports SS 347 piping requirements across India, USA and Turkey.
Contact Mcneil Instruments
Looking for a reliable Stainless Steel 347 Pipe Fittings Manufacturer, Supplier, Stockist & Exporter? Contact Mcneil Instruments for premium-quality ASTM A403 WP347 Pipe Fittings, competitive pricing, ready stock availability, and technical support for high-temperature industrial piping systems worldwide.
Frequently Asked Questions – Stainless Steel 347 Pipe Fittings
What are Stainless Steel 347 Pipe Fittings? ?
Stainless Steel 347 Pipe Fittings are niobium-stabilized austenitic stainless steels designed to resist intergranular corrosion after welding and during prolonged exposure to high temperatures.
How is SS 347 different from SS 321?
Both are stabilized grades; however, SS 347 uses niobium instead of titanium, offering better stability and creep strength at higher temperatures.
What industries use SS 347 Pipe Fittings?
These fittings are widely used in chemical processing, power generation, refinery systems, exhaust manifolds, and aerospace equipment due to their thermal stability.
Types of Stainless Steel 347 Pipe Fittings
We manufacture and supply a complete range of ASTM A403 WP347 pipe fittings:
- Stainless Steel 347 Elbow (45°, 90°, 180°)
- Stainless Steel 347 Tee & Cross
- Stainless Steel 347 Reducer (Concentric & Eccentric)
- Stainless Steel 347 Stub Ends
- Stainless Steel 347 Pipe Caps
- Stainless Steel 347 Buttweld Pipe Fittings
- Stainless Steel 347 Socket Weld & Threaded FittingsThese fittings are designed to ensure leak-proof performance and high strength in critical piping systems.
Key Features of Stainless Steel 347 Pipe Fittings
- Excellent resistance to intergranular corrosion and carbide precipitation
- Stabilized with niobium (columbium) for enhanced high-temperature performance
- Superior oxidation resistance up to 870°C (1600°F)
- High mechanical strength and toughness in extreme environments
- Good weldability and formability for complex piping structures
Applications of Stainless Steel 347 Pipe Fittings
Our ASTM A403 WP347 stainless steel pipe fittings are widely used in:
- Oil & Gas Industry
- Petrochemical Plants
- Chemical Processing Industry
- Power Generation Plants
- Heat Exchangers & Boilers
- Aerospace & High-Temperature Systems
- Refineries & Process Industries
Stainless Steel 347 is specifically designed for high-temperature service and resistance to sensitization.
Stainless Steel 347 Pipe Fittings Manufacturer in India & USA – Why Choose Us
- Leading SS 347 pipe fittings manufacturer, supplier, exporter in India
- Complete range of ASTM A403 WP347 fittings
- Ready stock available for bulk and urgent requirements
- Competitive pricing with fast delivery
- Strict quality testing and third-party inspection
- Export supply to USA, UAE, Saudi Arabia, Europe, and more
- Custom sizes and specifications available
We are recognized globally as a reliable stainless steel 347 pipe fittings supplier delivering consistent quality and performance.
Stainless Steel 347 vs 347H Pipe Fittings
SS 347 pipe fittings contain niobium for stabilization, while SS 347H pipe fittings have higher carbon content, offering improved strength at elevated temperatures. 347H is preferred for extreme heat applications, while 347 is widely used for general high-temperature environments.
Quality & Testing of Stainless Steel 347 Pipe Fittings
Our ASTM A403 WP347 pipe fittings undergo strict testing:
- PMI Testing
- Hydrostatic Testing
- Radiography Testing
- Dimensional Inspection
- Mechanical & Chemical Testing
- Third-Party Inspection
All fittings comply with ASTM and ASME standards to ensure safety and performance.
Why Choose Mcneil Instruments?
Industry Expertise: Trusted manufacturer, supplier, and exporter of Stainless Steel 347 Pipe Fittings, delivering precision-engineered solutions for high-temperature and high-stress environments.
Global Quality Standards: Manufactured as per ASTM A403 / ASME SA403 and ASME B16.9, B16.11, B16.28, MSS-SP-43, ensuring accuracy, consistency, and reliability in every fitting.
High-Performance Material: Made from niobium-stabilized austenitic stainless steel (SS 347), offering exceptional resistance to intergranular corrosion and carbide precipitation.
Comprehensive Range: Available in seamless, welded, and fabricated forms including elbows, tees, reducers, caps, and stub ends—crafted to meet diverse industrial needs.
Superior Heat Resistance: Designed to withstand temperatures up to 870°C, ensuring excellent performance in power generation, chemical, refinery, and aerospace applications.
Custom Solutions: Providing tailored designs and configurations for specific operational, pressure, and temperature requirements.
Dependable Delivery: Backed by a robust inventory and efficient logistics network, ensuring on-time supply across domestic and international markets.
Get Your Stainless Steel 347 Pipe Fittings Today – Contact Mcneil Instruments for heat-resistant, corrosion-proof fittings engineered to deliver strength, stability, and long-term performance in critical industrial environments.
Why Stainless Steel 347 Pipe Fittings Are Important
Stainless Steel 347 pipe fittings are essential in industrial piping systems where high-temperature stability, corrosion resistance, and long-term reliability are required. Their ability to withstand thermal stress and prevent intergranular corrosion makes them ideal for critical applications.
Frequently Asked Questions – Stainless Steel 347 Pipe Fittings
What are Stainless Steel 347 Pipe Fittings? ?
Stainless Steel 347 Pipe Fittings are niobium-stabilized austenitic stainless steels designed to resist intergranular corrosion after welding and during prolonged exposure to high temperatures.
How is SS 347 different from SS 321?
Both are stabilized grades; however, SS 347 uses niobium instead of titanium, offering better stability and creep strength at higher temperatures.
What industries use SS 347 Pipe Fittings?
These fittings are widely used in chemical processing, power generation, refinery systems, exhaust manifolds, and aerospace equipment due to their thermal stability.
Types of Stainless Steel 347 Pipe Fittings
We manufacture and supply a complete range of ASTM A403 WP347 pipe fittings:
- Stainless Steel 347 Elbow (45°, 90°, 180°)
- Stainless Steel 347 Tee & Cross
- Stainless Steel 347 Reducer (Concentric & Eccentric)
- Stainless Steel 347 Stub Ends
- Stainless Steel 347 Pipe Caps
- Stainless Steel 347 Buttweld Pipe Fittings
- Stainless Steel 347 Socket Weld & Threaded FittingsThese fittings are designed to ensure leak-proof performance and high strength in critical piping systems.
Key Features of Stainless Steel 347 Pipe Fittings
- Excellent resistance to intergranular corrosion and carbide precipitation
- Stabilized with niobium (columbium) for enhanced high-temperature performance
- Superior oxidation resistance up to 870°C (1600°F)
- High mechanical strength and toughness in extreme environments
- Good weldability and formability for complex piping structures
Why Choose Mcneil Instruments?
Industry Expertise: Trusted manufacturer, supplier, and exporter of Stainless Steel 347 Pipe Fittings, delivering precision-engineered solutions for high-temperature and high-stress environments.
Global Quality Standards: Manufactured as per ASTM A403 / ASME SA403 and ASME B16.9, B16.11, B16.28, MSS-SP-43, ensuring accuracy, consistency, and reliability in every fitting.
High-Performance Material: Made from niobium-stabilized austenitic stainless steel (SS 347), offering exceptional resistance to intergranular corrosion and carbide precipitation.
Comprehensive Range: Available in seamless, welded, and fabricated forms including elbows, tees, reducers, caps, and stub ends—crafted to meet diverse industrial needs.
Superior Heat Resistance: Designed to withstand temperatures up to 870°C, ensuring excellent performance in power generation, chemical, refinery, and aerospace applications.
Custom Solutions: Providing tailored designs and configurations for specific operational, pressure, and temperature requirements.
Dependable Delivery: Backed by a robust inventory and efficient logistics network, ensuring on-time supply across domestic and international markets.
Get Your Stainless Steel 347 Pipe Fittings Today – Contact Mcneil Instruments for heat-resistant, corrosion-proof fittings engineered to deliver strength, stability, and long-term performance in critical industrial environments.
Why Choose Mcneil Instruments?
Industry Expertise: Trusted manufacturer, supplier, and exporter of Stainless Steel 347 Pipe Fittings, delivering precision-engineered solutions for high-temperature and high-stress environments.
Global Quality Standards: Manufactured as per ASTM A403 / ASME SA403 and ASME B16.9, B16.11, B16.28, MSS-SP-43, ensuring accuracy, consistency, and reliability in every fitting.
High-Performance Material: Made from niobium-stabilized austenitic stainless steel (SS 347), offering exceptional resistance to intergranular corrosion and carbide precipitation.
Comprehensive Range: Available in seamless, welded, and fabricated forms including elbows, tees, reducers, caps, and stub ends—crafted to meet diverse industrial needs.
Superior Heat Resistance: Designed to withstand temperatures up to 870°C, ensuring excellent performance in power generation, chemical, refinery, and aerospace applications.
Custom Solutions: Providing tailored designs and configurations for specific operational, pressure, and temperature requirements.
Dependable Delivery: Backed by a robust inventory and efficient logistics network, ensuring on-time supply across domestic and international markets.
Get Your Stainless Steel 347 Pipe Fittings Today – Contact Mcneil Instruments for heat-resistant, corrosion-proof fittings engineered to deliver strength, stability, and long-term performance in critical industrial environments.
Frequently Asked Questions – Stainless Steel 347 Pipe Fittings
What are Stainless Steel 347 Pipe Fittings? ?
Stainless Steel 347 Pipe Fittings are niobium-stabilized austenitic stainless steels designed to resist intergranular corrosion after welding and during prolonged exposure to high temperatures.
How is SS 347 different from SS 321?
Both are stabilized grades; however, SS 347 uses niobium instead of titanium, offering better stability and creep strength at higher temperatures.
What industries use SS 347 Pipe Fittings?
These fittings are widely used in chemical processing, power generation, refinery systems, exhaust manifolds, and aerospace equipment due to their thermal stability.
Types of Stainless Steel 347 Pipe Fittings
We manufacture and supply a complete range of ASTM A403 WP347 pipe fittings:
- Stainless Steel 347 Elbow (45°, 90°, 180°)
- Stainless Steel 347 Tee & Cross
- Stainless Steel 347 Reducer (Concentric & Eccentric)
- Stainless Steel 347 Stub Ends
- Stainless Steel 347 Pipe Caps
- Stainless Steel 347 Buttweld Pipe Fittings
- Stainless Steel 347 Socket Weld & Threaded FittingsThese fittings are designed to ensure leak-proof performance and high strength in critical piping systems.
Key Features of Stainless Steel 347 Pipe Fittings
- Excellent resistance to intergranular corrosion and carbide precipitation
- Stabilized with niobium (columbium) for enhanced high-temperature performance
- Superior oxidation resistance up to 870°C (1600°F)
- High mechanical strength and toughness in extreme environments
- Good weldability and formability for complex piping structures
Why Choose Mcneil Instruments?
Industry Expertise: Trusted manufacturer, supplier, and exporter of Stainless Steel 347 Pipe Fittings, delivering precision-engineered solutions for high-temperature and high-stress environments.
Global Quality Standards: Manufactured as per ASTM A403 / ASME SA403 and ASME B16.9, B16.11, B16.28, MSS-SP-43, ensuring accuracy, consistency, and reliability in every fitting.
High-Performance Material: Made from niobium-stabilized austenitic stainless steel (SS 347), offering exceptional resistance to intergranular corrosion and carbide precipitation.
Comprehensive Range: Available in seamless, welded, and fabricated forms including elbows, tees, reducers, caps, and stub ends—crafted to meet diverse industrial needs.
Superior Heat Resistance: Designed to withstand temperatures up to 870°C, ensuring excellent performance in power generation, chemical, refinery, and aerospace applications.
Custom Solutions: Providing tailored designs and configurations for specific operational, pressure, and temperature requirements.
Dependable Delivery: Backed by a robust inventory and efficient logistics network, ensuring on-time supply across domestic and international markets.
Get Your Stainless Steel 347 Pipe Fittings Today – Contact Mcneil Instruments for heat-resistant, corrosion-proof fittings engineered to deliver strength, stability, and long-term performance in critical industrial environments.
Why Choose Mcneil Instruments?
Industry Expertise: Trusted manufacturer, supplier, and exporter of Stainless Steel 347 Pipe Fittings, delivering precision-engineered solutions for high-temperature and high-stress environments.
Global Quality Standards: Manufactured as per ASTM A403 / ASME SA403 and ASME B16.9, B16.11, B16.28, MSS-SP-43, ensuring accuracy, consistency, and reliability in every fitting.
High-Performance Material: Made from niobium-stabilized austenitic stainless steel (SS 347), offering exceptional resistance to intergranular corrosion and carbide precipitation.
Comprehensive Range: Available in seamless, welded, and fabricated forms including elbows, tees, reducers, caps, and stub ends—crafted to meet diverse industrial needs.
Superior Heat Resistance: Designed to withstand temperatures up to 870°C, ensuring excellent performance in power generation, chemical, refinery, and aerospace applications.
Custom Solutions: Providing tailored designs and configurations for specific operational, pressure, and temperature requirements.
Dependable Delivery: Backed by a robust inventory and efficient logistics network, ensuring on-time supply across domestic and international markets.
Get Your Stainless Steel 347 Pipe Fittings Today – Contact Mcneil Instruments for heat-resistant, corrosion-proof fittings engineered to deliver strength, stability, and long-term performance in critical industrial environments.
Frequently Asked Questions – Stainless Steel 347 Pipe Fittings
What are Stainless Steel 347 Pipe Fittings? ?
Stainless Steel 347 Pipe Fittings are niobium-stabilized austenitic stainless steels designed to resist intergranular corrosion after welding and during prolonged exposure to high temperatures.
How is SS 347 different from SS 321?
Both are stabilized grades; however, SS 347 uses niobium instead of titanium, offering better stability and creep strength at higher temperatures.
What industries use SS 347 Pipe Fittings?
These fittings are widely used in chemical processing, power generation, refinery systems, exhaust manifolds, and aerospace equipment due to their thermal stability.