This reference provides the dimensional data, bolt information, weight, and CAD resource for a Weld Neck Flange 10 Inch Class 600. Use the listed values for drafting and preliminary coordination, then verify the flange, pipe, gasket, and bolting details against the project specification before fabrication or installation.
For related design work, compare this reference with the site’s flange dimensions, pipe schedules, fitting dimensions, and piping terminology resources. Those references help connect the flange drilling and facing details with the pipe wall thickness, mating flange, gasket, and fastening arrangement.
Weld Neck Flange 10″ Class 600
Weld Neck Flange 10″ Class 600 is widely used in piping systems that require strong, leak-resistant flange connections under high-pressure service. It features a long tapered hub that provides excellent stress distribution and is commonly applied in process piping, utility lines, refineries, power plants, and industrial systems where welding strength and reliability are essential.
This dimension data is based on ANSI / ASME B16.5-2020.
Weld Neck Flange 10″ Class 600 Dimensions
- Reference Standard: ANSI / ASME B16.5
- Nominal Pipe Size (NPS):10″
- DN Size: DN250
- Outside Diameter:508mm
- Flange Thickness:63.5mm
- Hub Diameter:343mm
- Bore Diameter: varies depending on pipe schedule and pipe wall thickness
- Raised Face Diameter:323.8mm
- Weight: 105kg
- Number of Bolts:16
- Stud Bolt Size: 1 1/4″ UNC (or M33) x 215 Long
- Hole Diameter: 1 3/8″ (34.925mm)
What Is a Weld Neck Flange?
A weld neck flange is a type of pipe flange designed with a long tapered hub that is welded directly to the pipe. This design helps reduce stress concentration at the flange base and provides better strength under pressure, temperature fluctuation, and cyclic loading.
Common Applications
Weld Neck Flange 10″ Class 600 is commonly used for:
- Process piping systems
- Oil and gas lines
- Water and utility piping
- High-pressure service
- Pressure piping connections
- Industrial fabrication and maintenance work
CAD Drawing Download
This page includes the CAD drawing file for Weld Neck Flange 10″ Class 600, which can be used for drafting, detailing, piping layout coordination, and fabrication reference.
Available Weld Neck Flange Class 600 Sizes
This size is part of the Weld Neck Flange Class 600 series. Check other sizes in the same category to find matching dimension data and CAD files for your project.
Notes
Before fabrication or installation, always confirm the latest project requirements, flange material specification, pipe schedule, bore size, gasket type, bolt length, and applicable pressure-temperature rating.
How to Read This Weld Neck Flange Reference
The listed outside diameter, thickness, hub diameter, raised face diameter, bolt-hole information, and weight describe the flange configuration identified by the title. These values are useful when checking clearances, preparing general-arrangement drawings, and coordinating the flange with adjacent piping.
Bore and pipe schedule
The bore is not treated as one universal value in this reference because it depends on the pipe schedule and wall thickness. Confirm the mating pipe outside diameter and internal bore before selecting or detailing the flange. A nominal pipe size identifies the pipe size category; it does not by itself define every internal dimension.
Weld neck geometry
The tapered hub provides a gradual transition between the pipe and flange body. In service, the weld joint, hub profile, flange facing, material specification, and applicable design conditions must be reviewed together. The flange dimensions alone are not a substitute for piping design calculations, fabrication procedures, or inspection requirements.
Bolting and mating components
Use the listed bolt count, stud size, hole diameter, and length as a coordination reference. Confirm thread form, material, washer requirements, usable thread engagement, gasket selection, and the mating flange before ordering bolting. Bolt length can be affected by flange thicknesses, gasket construction, washers, and the final joint assembly.
CAD and drafting use
The downloadable DWG is intended for layout, detailing, and coordination. Check the drawing units, insertion scale, facing orientation, weld preparation, and bore representation before incorporating it into a project model. CAD geometry should be checked against the dimension list and approved project documents rather than treated as a fabrication release by itself.
Related Reference Topics
- Flange dimensions and pressure-class terminology
- Pipe schedules and bore selection
- Raised-face and flange-facing terminology
- Stud bolts, nuts, and flange-joint assembly
- Pipe fittings and piping layout references
Frequently Asked Questions
What does a weld neck flange do?
A weld neck flange connects to the pipe through a butt weld and uses a tapered hub to provide a gradual transition from the pipe to the flange. This configuration is commonly selected where strength, pressure containment, and resistance to service-related loading are important.
Does the listed bore apply to every pipe schedule?
No. The bore depends on the pipe schedule and wall thickness. Confirm the actual mating pipe and required bore before finalizing the flange selection or CAD detail.
What bolt information is included in this reference?
The reference lists the number of bolts, stud bolt size and length, and hole diameter. These details still require confirmation against the mating flange, gasket, washers, materials, and project bolting requirements.
Can the DWG be used as a fabrication drawing?
The DWG is provided as a drafting and coordination resource. Verify its units and geometry against the dimension list, approved specifications, manufacturing requirements, and the applicable engineering review before fabrication.
What should be checked before installation?
Confirm the flange material, pipe schedule, bore, gasket, bolting, facing condition, pressure-temperature requirements, welding procedure, and project inspection criteria before installation.