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NXF UNS S33400/Incoloy 840/ASTM A240/ASME SA-240/NAS H840 DN15-1200 SCH10-XXS Butt Welding Lap Joint Stub EndNXF UNS S33400/Incoloy 840/ASTM A240/ASME SA-240/NAS H840 DN15-1200 SCH10-XXS Butt Welding Lap Joint Stub EndNXF UNS S33400/Incoloy 840/ASTM A240/ASME SA-240/NAS H840 DN15-1200 SCH10-XXS Butt Welding Lap Joint Stub EndNXF UNS S33400/Incoloy 840/ASTM A240/ASME SA-240/NAS H840 DN15-1200 SCH10-XXS Butt Welding Lap Joint Stub EndNXF UNS S33400/Incoloy 840/ASTM A240/ASME SA-240/NAS H840 DN15-1200 SCH10-XXS Butt Welding Lap Joint Stub EndNXF UNS S33400/Incoloy 840/ASTM A240/ASME SA-240/NAS H840 DN15-1200 SCH10-XXS Butt Welding Lap Joint Stub End
  • NXF UNS S33400/Incoloy 840/ASTM A240/ASME SA-240/NAS H840 DN15-1200 SCH10-XXS Butt Welding Lap Joint Stub End
  • NXF UNS S33400/Incoloy 840/ASTM A240/ASME SA-240/NAS H840 DN15-1200 SCH10-XXS Butt Welding Lap Joint Stub End
  • NXF UNS S33400/Incoloy 840/ASTM A240/ASME SA-240/NAS H840 DN15-1200 SCH10-XXS Butt Welding Lap Joint Stub End
  • NXF UNS S33400/Incoloy 840/ASTM A240/ASME SA-240/NAS H840 DN15-1200 SCH10-XXS Butt Welding Lap Joint Stub End
  • NXF UNS S33400/Incoloy 840/ASTM A240/ASME SA-240/NAS H840 DN15-1200 SCH10-XXS Butt Welding Lap Joint Stub End
  • NXF UNS S33400/Incoloy 840/ASTM A240/ASME SA-240/NAS H840 DN15-1200 SCH10-XXS Butt Welding Lap Joint Stub End
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  • NXF UNS S33400/Incoloy 840/ASTM A240/ASME SA-240/NAS H840 DN15-1200 SCH10-XXS Butt Welding Lap Joint Stub End
  • NXF UNS S33400/Incoloy 840/ASTM A240/ASME SA-240/NAS H840 DN15-1200 SCH10-XXS Butt Welding Lap Joint Stub End
  • NXF UNS S33400/Incoloy 840/ASTM A240/ASME SA-240/NAS H840 DN15-1200 SCH10-XXS Butt Welding Lap Joint Stub End
  • NXF UNS S33400/Incoloy 840/ASTM A240/ASME SA-240/NAS H840 DN15-1200 SCH10-XXS Butt Welding Lap Joint Stub End
  • NXF UNS S33400/Incoloy 840/ASTM A240/ASME SA-240/NAS H840 DN15-1200 SCH10-XXS Butt Welding Lap Joint Stub End
  • NXF UNS S33400/Incoloy 840/ASTM A240/ASME SA-240/NAS H840 DN15-1200 SCH10-XXS Butt Welding Lap Joint Stub End

NXF UNS S33400/Incoloy 840/ASTM A240/ASME SA-240/NAS H840 DN15-1200 SCH10-XXS Butt Welding Lap Joint Stub End

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A lap joint stub end, also known as a flanged short section or lap joint short section, is a key component in a lap joint flange system. It, along with the backing flange, forms a detachable connection. Its main characteristic is that the stub end (flared short neck) is welded to the end of the pipe, and the backing flange is fitted onto the stub end. This combination allows the backing flange to rotate freely on the pipe to align with bolt holes, making it ideal for piping systems that require frequent disassembly for inspection and maintenance.
Surface smooth
Material Incoloy Alloy 840
Brand: NXF
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Product Description
Incoloy 840 Introduction
Incoloy alloy 840 is a high temperature alloy designed for exceptional performance in extreme environments. Engineers classify it as an austenitic stainless steel, but its unique blend of nickel, chromium, and iron sets it apart from standard stainless steels. The alloy’s composition includes significant amounts of nickel (19–22%) and chromium (19.5–21%), with smaller additions of titanium, silicon, manganese, and carbon. This precise formulation gives incoloy alloy 840 its remarkable resistance to oxidation and corrosion, even when exposed to temperatures near 1000°C.
Lap Joint Stub End Introduction
A lap joint stub end, also known as a flanged short section or lap joint short section, is a key component in a lap joint flange system. It, along with the backing flange, forms a detachable connection. Its main characteristic is that the stub end (flared short neck) is welded to the end of the pipe, and the backing flange is fitted onto the stub end. This combination allows the backing flange to rotate freely on the pipe to align with bolt holes, making it ideal for piping systems that require frequent disassembly for inspection and maintenance.

Key Features and Functions

*Easy Installation and Maintenance: The flange fits onto the short section and can be freely rotated to align the bolt holes, eliminating the need for precise pipe alignment before installation. This greatly simplifies the flange installation process.

*Easy Disassembly: Because the flange can rotate, disassembling the pipeline for inspection or maintenance is much easier, eliminating the need for secondary welding or cutting as with weld neck flanges.

*Reduced Stress:Since the short section is welded to the pipe, and the flange fits onto the short section, the flange does not bear the stress of the pipe during connection, minimizing its impact on the overall stress of the pipeline.
BUTT-WELDING LAP JOINT STUB END DRAWING
Incoloy 840 Chemical Composition And Mechanical Properties
Lap Joint Stub End Actual product image
Lap Joint Stub End Processing

* Raw Material Preparation: Select pipes or plates that meet standard requirements as raw materials.


* Material Pretreatment: Depending on process requirements, pretreatment such as cutting and cleaning may be necessary.


Forming: Form the pipes or plates into the shape of a flanged short section using cold or hot working methods.


Stamping: Stamp the material using a die.


Bending, Extrusion, and Molding: Shape the product according to its shape using these machining methods.


Welding: For some large-diameter products, welding may be required to complete the forming process.


* Machining and Finishing: Further process and finish the formed workpiece to ensure its dimensions and quality meet standards.


* Quality Inspection: Inspect the finished product for quality, including dimensions, appearance, and performance.


* Packaging and Warehousing: Pack the qualified products and then put them into storage.

Specification

item
Lap Joint Stub End
Technic
Other
shape
Equal
head code
Round
place of origin
China
Jiangsu
Surface Treatment
Smooth
Mounting hole diameter
0.25 in
Pipe Class
150
Application
Agricultural Irrigation, Automotive Repair, Heating Systems, Power Industry
warranty
3 years
customized support
OEM, ODM, OBM
brand name
NXF
model number
NXF-Lap Joint Stub End
Connectivity
Welding
Overall Length
4 in
Height
1in
Pressure
Low Pressure
System of Measurement
in
Pipe Features
Flexible, Corrosion-resistant, Chemical Resistant
Product name
Lap Joint Stub End
Material
Incoloy 840
OD
DN15-1200
NOMINAL WALL THICKNESS
SCH10-XXS
Standard
ASTM BS DIN ISO JIS
MOQ
1 Piece
Type
Butt Welded
Application
Industry
Package
Wooden Box Packaging
Brand
NXF
Packing & Delivery
Shipping
Company Profile
New XiFei (SuZhou) Business Co.,Ltd is one of the leading and most respected manufacturers in China. Our products include metals, machinery, containers, construction materials, mechanical products, electrical systems, and medical accessories. Established in 1980, XIFEI has been working diligently ever since to embrace the needs of our global customer base.We work to ensure absolute customer satisfaction. Our team has dedicated itself to perfecting our three core components, "Service, Management and Craftsmanship."     Our advantage as follow: 1.We have our own factory, and we can control the cost by producing by ourselves. We have a great advantage in price and can give you the lowest price. 2. We can strictly control the quality. We have production, quality inspection, warehousing and other departments to coordinate and control the quality. 3. Our biggest advantage is 3S service. Small quantity, short time, special materials.
FAQ

1. who are we?
We are based in Jiangsu, China, start from 2021,sell to South Asia(30.00%),Eastern Asia(10.00%),Mid East(10.00%),Eastern Europe(10.00%),South America(10.00%),Domestic Market(5.00%),North America(5.00%),Northern Europe(5.00%),Central America(5.00%),Africa(5.00%),Southeast Asia(5.00%). There are total about 101-200 people in our office.

2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;

3.what can you buy from us?
Pipe,Flange,Steel plate,Pipe fittings,Alloy products

4. why should you buy from us not from other suppliers?
Our advantage:3S Service (Small Quantity/Short Time/Special Material)        We have our own factories, quality can be controlled seriously.We Specialize in manufacturing about 21 years.We have professional testing department and testing equipment.

5. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,FCA,DDP,DDU；
Accepted Payment Currency:USD,EUR,CAD,HKD,CNY;
Accepted Payment Type: T/T,L/C,D/P D/A,Credit Card,PayPal;
Language Spoken:English,Chinese,Spanish,Russian

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