Flanges
Lap Joint Flange
Lap joint flanges to ASME B16.5, EN 1092-1 and DIN 2642, used with a stub end, Class 150 to 600, with Class 150 dimension tables.

Specification
At a glance
- Dimensional standard
- ASME B16.5 · EN 1092-1 · DIN 2642
- Pressure classes
- Class 150 · Class 300 · Class 600 · PN 10 · PN 16 · JIS 10K
- Types & ends
- Flange ring + stub end
- Grade
- ASTM A105N
- Also offered in
- Carbon steel (flange ring)
- Stub end to match the pipe
Dimension tables
1 class · dimensions, weights, Excel
Carbon Steel
As published by Fortune Fittings Private Limited. Grade and availability are confirmed with each enquiry; confirm the governing standard, size and grade when ordering. Spotted a mistake? Please contact us.
Overview
Product overview
A Lap Joint Flange is a versatile component used to connect pipes or fittings. This flange consists of two parts: the flange ring, typically made of carbon steel, and the stub end, crafted from a material compatible with the connected pipe or fitting. The flange ring features bolt holes around its perimeter, allowing it to be securely bolted to another flange or equipment.
Product Range
We offer these flanges in various international standards, including JIS 10K, PN16, and PN10.
Conclusion
Our extensive range of materials, sizes, and specifications ensures that we can cater to a wide array of applications.
Where it is used
Applications and service
Typical duty across the process industries we supply.
- Lap Joint Flanges are ideal for applications requiring frequent disassembly.
- They are standardized by ANSI B16.5 and, with pressure classes including class 150, class 300, and class 600.
- These flanges are also governed by international standards such as DIN 2642 and EN 1092-1, ensuring precise dimensions and material compatibility.
Characteristics
What defines the range
- Variety of Materials: Available in carbon steel, stainless steel, and alloy steel.
- Face Types: Can be used with flat face (FF) or raised face (RF) configurations.
- Gaskets: Typically used with compressed non-asbestos, graphite, or PTFE gaskets for sealing.
- Pressure Ratings: Suitable for high-pressure applications, especially when used with RTJ gaskets.
Related
Specified alongside this
Components that commonly appear with it on the same run, and the rest of the flanges range.
Used on the same lineSlip-On FlangeSlip-on flanges to ASME B16.5 and EN 1092-1, flat or raised face, with dimension tables for mild, carbon and stainless steel.View specifications
Used on the same lineWeld Neck FlangeWeld neck flanges to ASME B16.5, ASME B16.47 and EN 1092, including long weld neck, with tables for MS, carbon, stainless and Cr-Mo grades.View specifications
Same rangeBlind FlangeBlind flanges to ASME B16.5, ASME B16.47, BS 4504 and EN 1092-1, 1/2″ to 48″, with tables for MS, carbon, stainless and Cr-Mo grades.View specifications
Same rangeSocket Weld FlangeSocket weld flanges to ASME B16.5 and BS 4504 for small-bore, high-pressure lines, in stainless and carbon steel, with Class 150 tables.View specifications
Same rangeThreaded FlangeThreaded flanges to ASME B16.5 with NPT or BSP threads for low-pressure lines where welding is not wanted, with Class 150 tables.View specifications
Same rangeForged FlangesForged slip-on, weld neck, socket weld and blind flanges to ASME B16.5 and B16.47 in carbon, stainless and alloy steel.View specifications
Where it is specified
Industries using this component
Sectors that commonly specify the Lap Joint Flange, and what else they take from us.
Enquiries
Need a quotation for the Lap Joint Flange?
Send sizes, grades, quantities and the standard the component is specified to, and a sales engineer will come back with availability and pricing. Dimensions and schedules are in the Technical Catalog.
